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494 results returned

  1. Title: Parcel Map, Hamilton, Massachusetts, 1996 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Town of Hamilton, Massachusetts parcel map, produced by the Wenham-Hamilton Bay Circuit Project with funding by the Massachusetts Department of Environmental Management. It was published by Wenham-Hamilton Bay Circuit Project in 1996. Scale [1:12,000] 1 in. = 1000 ft. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, railroads, drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. Includes parcels. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

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  2. Title: Zoning Map, Norwood, Massachusetts, 1976 (Raster Image)

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    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Zoning map of the town of Norwood, Mass., R. A. Hamilton, Town Engineer. It was published by the Town of Norwood in 1976. Scale [ca. 1:10,000]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, railroads, airport access, drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

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  3. Title: Edinburgh, Scotland, United Kingdom, 1827 (Raster Image)

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    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Hamilton's plan of the city of Edinburgh and its vicinity, drawn & engd. by Charles Thomson Edinr. It was published by Robert Hamilton Ornamental Stationer to His Majesty in 1827. Scale [ca. 1:12,000]. Covers Edinburgh, Scotland, United Kingdom.The image inside the map neatline is georeferenced to the surface of the earth and fit to the 'British National Grid' coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map.This map shows features such as roads, drainage, built-up areas and selected buildings, parks, and more. Relief shown by hachures. Includes also illustrations and inset: Plan of the environs of Edinburgh.This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

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  4. Title: Boston and vicinity, Massachusetts, 1776 (Raster Image)

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    Summary: This layer is a georeferenced raster image of the historic paper map entitled: An accurate map of the country round Boston in New England. It was originally published by Archibald Hamilton in Town and country magazine (London), Jan. 16, 1776. Scale [ca. 1:362,500]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows features such as roads, drainage, selected public buildings, town boundaries and more. Relief is shown by hachures. Includes ancillary map: A plan of Boston and Charlestown, from a drawing made in 1771, with index to points of interest. This layer is part of a selection of digitally scanned and georeferenced historic maps of Massachusetts from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates (1755-1922), scales, and purposes. The digitized selection includes maps of: the state, Massachusetts counties, town surveys, coastal features, real property, parks, cemeteries, railroads, roads, public works projects, etc.

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  5. Title: Hinterindien

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    Summary: At head of map: Berghaus' Atlas von Asia. No. 8. "Zum Anerkenntniss seiner grossen Verdienste um die Kunde des Indo-chinesischen Halbinsellandes gewidmet von Verfasser." Relief shown by hachures. Plate 8 from: Atlas von Asia. Gotha : J. Perthes, 1832.

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  6. Title: Population Density in Watersheds: San Francisco Bay Area, California, 2009

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    Summary: This polygon shapefile depicts a watershed integrity cluster analysis at the CalWater 2.2.1 Planning Watershed (PWS) level performed by mapping factors representing some of the most significant watershed threats. Each of the individual watershed integrity factors was individually mapped and then combined in the watershed cluster analysis. This individual threat, cultivated, was created by taking CalWater watersheds at the planning unit level (most refined) and running zonal stats, part of spatial analyst. The Calwater PWS watershed was the zone dataset (pwsname as the zone field) and Population Density as the value raster. The result gives you the mean percent population density of the nine county San Francisco Bay Area Region, California at the watershed level in a table that you can join back to the CalWater GIS layer and then symbolize as a graduated color with the mean being the value field. This analysis was done by the Conservation Lands Network Fish and Riparian Focus Team. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Population Density in Watersheds: San Francisco Bay Area, California, 2009. Bay Area Open Space Council. Available at http://purl.stanford.edu/wc460zb2749. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  7. Title: Protected Areas in Watersheds: San Francisco Bay Area, California, 2009

    Contributors:

    Summary: This polygon shapefile depicts a watershed integrity cluster analysis at the CalWater 2.2.1 Planning Watershed (PWS) level performed by mapping factors representing some of the most significant watershed threats. Each of the individual watershed integrity factors was individually mapped and then combined in the watershed cluster analysis. This individual threat, cultivated, was created by taking calwater watersheds at the planning unit level (most refined) and running zonal stats, part of spatial analyst. The Bay Area Open Space Council Bay Area Protected Areas Database (BPAD) protected areas data was converted to a grid so that zonal stats could be used. The CalWater PWS watershed was the zone dataset (pwsname as the zone field) and BPAD Protected as the value raster. The result gives you the mean percent protected in the nine county San Francisco Bay Area Region, California at the watershed level in a table that you can join back to the CalWater GIS layer and then symbolize as a graduated color with the mean being the value field. This analysis was done by the Conservation Lands Network Fish and Riparian Focus Team. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Protected Areas in Watersheds: San Francisco Bay Area, California, 2009. Bay Area Open Space Council. Available at http://purl.stanford.edu/wh281bw1148. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  8. Title: Winter Steelhead Distribution: San Francisco Bay Area, California, 2007

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    Summary: The data was clipped to the Bay Area. Winter Steelhead Distribution (CalFish) June 2007 Version This polyline shapefile depicts observation-based, stream-level geographic distribution of anadromous steelhead trout (Oncorhynchus mykiss irideus) during winter months in the nine county San Francisco Bay Area Region, California. It was developed for the express purpose of assisting with steelhead recovery planning efforts. The distributions reported in this dataset were derived from a subset of the data contained in the Aquatic Species Observation Database (ASOD), a Microsoft Access multi-species observation data capture application. ASOD is an ongoing project designed to capture as complete a set of statewide inland aquatic vertebrate species observation information as possible. ASOD observation data were used to develop a network of stream segments. These lines are developed by "tracing down" from each observation to the sea using the flow properties of United States Geological Survey National Hydrography Dataset (NHD) High Resolution hydrography. Lastly these lines, representing stream segments, were assigned a value of either Anad Present (Anadromous present) or Unsp Present (Unspecified O. mykiss present). The resulting layer consists of a set of lines representing the winter distribution of steelhead. This dataset represents stream reaches that are known or believed to be used by steelhead based on steelhead observations, thus, it contains only positive steelhead occurrences. The absence of distribution on a stream does not necessarily indicate that steelhead do not utilize that stream. Additionally, steelhead may not be found in all streams or reaches each year. This is due to natural variations in run size, water conditions and other environmental factors. The information in this dataset should be used as an indicator of steelhead presence/suspected presence at the time of the observation as indicated by the 'Late_Yr' (Latest Year) field attribute. The line features in the dataset may not represent the maximum extent of steelhead on a stream; rather it is important to note that this distribution most likely underestimates the actual distribution of steelhead. The individual observations may not have occurred at the upper extent of anadromous occupation. In addition, no attempt was made to capture every observation, so it should not be assumed that this dataset is complete for each stream. No additional data (habitat mapping, barriers data, gradient modeling, etc.) were utilized to either add to or validate the data. It is very possible that an anadromous observation in this dataset has been recorded above (upstream of) a barrier as identified in the Passage Assessment Database (PAD). In the future, we hope to perform a comparative analysis between this dataset and the PAD to identify and resolve all such discrepancies. Such an analysis will add rigor to and help validate both datasets. This dataset has recently undergone a review. Data source contributors as well as California Department of Fish and Wildlife (CDFW) fisheries biologists were provided the opportunity to review and suggest edits or additions during the review. Initially, data contributors were notified and invited to review and comment on the handling of the information that they provided. The distribution was then posted to an intranet mapping application and CDFW biologists were provided an opportunity to review and comment on the dataset. During this review, biologists were also encouraged to add new observation data. This resulting final distribution contains their suggestions and additions. Please refer to "Use Constraints" section below. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Winter Steelhead Distribution: San Francisco Bay Area, California, 2007. Bay Area Open Space Council. Available at http://purl.stanford.edu/jw390yx2678. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  9. Title: Fog Shrew Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008

    Contributors:

    Summary: This polygon shapefile depicts the range map the fog shrew (Sorex sonomae) that were pulled out and then reversed so the polygon represents areas outside of their range. This creates a mask so the actual species ranges can be shown while the area outside of its range can be masked out. Vector datasets are a component of the California Wildlife Habitat Relationships (CWHR) range maps, a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution and habitat relationships for 694 species of amphibians, reptiles, birds and mammals known to occur regularly in the state. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Fog Shrew Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/bk113kj6195. The following information describes, and should always accompany, the California Department of Fish and Game's California Wildlife Habitat Relationship System (CWHR) species distribution data. The data is organized into four folders according to the four major taxonomic groups in CWHR: amphibians, reptiles, birds and mammals. Each species is represented by a single shapefile and is named according to its 4 digit alpha-numeric CWHR ID code. The file lookup.xls contains a record for each species including its CWHR ID, scientific name, common name, and range map revision history. Each layer contains two attributes: a season code and a SHAPE_NAME or CWHR ID code. Season codes include S for summer-only, W for winter-only, and Y for yearlong. A few species have a migration-only stopover location mapped and represented with an "M". The CWHR System software contains species predictions for migration-only locations, yet most of these are not mapped. The CWHR species range maps are continually being reviewed and updated as new animal occurrence data becomes available, especially in digital format. While the original maps were digitized from 1:5,000,000 scale depictions of range, a major revision effort started in 1995 to have maps reviewed and delineated by species-level experts at a scale of 1:1,000,000. Maps dated later than 1995 are therefore much more detailed and precise in their representation of a species' range. Increasingly, species-level experts and CWHR staff have made every effort, where justified by the distribution of known species observations or known habitat associations, to represent a species' range with standard polygons of major geographic features in California such as mountain ranges, valleys, buffered river corridors, and ecological subsections of California. The smallest units of the "Ecological subregions of California: section and subsection descriptions" (Miles and Goudy, 1997. USDA Forest Service Report No. R5-EM-TP-005) capture areas with very similar soils, vegetation, precipitation, geology, climate, and geography. In cases where a population of a species is known to be isolated, its point location is buffered to a minimum radius of 2 miles. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  10. Title: Coho Salmon Watersheds: San Francisco Bay Area, California, 2011

    Contributors:

    Summary: This polygon shapefile depicts the Coho Salmon Priority Restoration Areas in the nine county San Francisco Bay Area Region, California, as defined by the National Oceanic and Atmospheric Administration (NOAA), National Marine Fisheries Service (NMFS), Southwest Region, North-Central California Coast Recovery Team. These areas cover the North-Central California Coast Recovery Domain and are pertinent for the Central California Coast Coho Salmon Evolutionarily Significant Unit (ESU). Once a species is listed as a threatened or endangered, the Endangered Species Act mandates that a Recovery Plan be developed and implemented. The Recovery Plan guides implementation of actions to recover the species by resolving the threats to it and ensuring self-sustaining populations in the wild. The polygons in this layer depict the areas identified as: "Core" (Subwatersheds with persisting populations of coho salmon. Maintaining Core areas is essential for preventing the extinction of CCC coho salmon and these Core areas are targeted for immediate threat abatement and enhancement and restoration actions.); Phase 1 (Areas outside of Core subwatersheds, designated as necessary for recovery actions to expand current populations); and Phase 2 (Areas outside of Core subwatersheds, typically more degraded than Core and Phase I areas. Restoring watershed processes and preventing further degradation will likely take an extended period of time in these areas). This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Coho Salmon Watersheds: San Francisco Bay Area, California, 2011. Bay Area Open Space Council. Available at http://purl.stanford.edu/ff359cr8805. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  11. Title: Porcupine Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008

    Contributors:

    Summary: This polygon shapefile depicts the range map the porcupine that were pulled out and then reversed so the polygon represents areas outside of their range. This creates a mask so the actual species ranges can be shown while the area outside of its range can be masked out. Vector datasets are a component of the California Wildlife Habitat Relationships (CWHR) range maps, a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution and habitat relationships for 694 species of amphibians, reptiles, birds and mammals known to occur regularly in the state. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Porcupine Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/mr881vv1097. The following information describes, and should always accompany, the California Department of Fish and Game's California Wildlife Habitat Relationship System (CWHR) species distribution data. The data is organized into four folders according to the four major taxonomic groups in CWHR: amphibians, reptiles, birds and mammals. Each species is represented by a single shapefile and is named according to its 4 digit alpha-numeric CWHR ID code. The file lookup.xls contains a record for each species including its CWHR ID, scientific name, common name, and range map revision history. Each layer contains two attributes: a season code and a SHAPE_NAME or CWHR ID code. Season codes include S for summer-only, W for winter-only, and Y for yearlong. A few species have a migration-only stopover location mapped and represented with an "M". The CWHR System software contains species predictions for migration-only locations, yet most of these are not mapped. The CWHR species range maps are continually being reviewed and updated as new animal occurrence data becomes available, especially in digital format. While the original maps were digitized from 1:5,000,000 scale depictions of range, a major revision effort started in 1995 to have maps reviewed and delineated by species-level experts at a scale of 1:1,000,000. Maps dated later than 1995 are therefore much more detailed and precise in their representation of a species' range. Increasingly, species-level experts and CWHR staff have made every effort, where justified by the distribution of known species observations or known habitat associations, to represent a species' range with standard polygons of major geographic features in California such as mountain ranges, valleys, buffered river corridors, and ecological subsections of California. The smallest units of the "Ecological subregions of California: section and subsection descriptions" (Miles and Goudy, 1997. USDA Forest Service Report No. R5-EM-TP-005) capture areas with very similar soils, vegetation, precipitation, geology, climate, and geography. In cases where a population of a species is known to be isolated, its point location is buffered to a minimum radius of 2 miles. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  12. Title: Coarse Filter Vegetation Map: San Francisco Bay Area and Santa Cruz County, California, 2006

    Contributors:

    Summary: This raster dataset depicts a final version of the Coarse Filter Vegetation Map as a 30 meter grid with 61 cover types, 51 of which are natural or semi-natural land cover, for the nine county San Francisco Bay Area Region and Santa Cruz County, California. See Resource Details for detailed data compilation description. This data was compiled from data sourced from the United States Department of Agriculture Forest Service, The Nature Conservancy and the California Department of Forestry and Fire. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Coarse Filter Vegetation Map: San Francisco Bay Area and Santa Cruz County, California, 2006. Bay Area Open Space Council. Available at: http://purl.stanford.edu/bj949wd0866 Same as cln_veg with the addition of Santa Cruz county. A crosswalk was done with the vegetation map from the Santa Cruz Conservation Blueprint. This one also includes the original veg types before they were reclassified into rural residential. This is the vegetation dataset created specifically for the Upland Habitat Goals Project. The coarse filter vegetation targets were generated from this dataset. For a full description of the development of the coarse filter vegetation map along with helpful maps and graphics, see chapter 5 (Coars Filter and Vegetation Representation Analysis) in the final report. The first challenge faced by the Vegetation Focus Team was the lack of a consistent vegetation map covering the region. The team's preferred vegetation classification system was Manual of California Vegetation (Sawyer et.al. 2009) (MCV) because of the detail it provides. But, only a few areas within the Upland Habitat Goals Study Area have been mapped using MCV. An alternative vegetation classification system developed by the US Forest Service, CalVeg, covers almost the entire region but has some spatial inaccuracies and lacks sufficient detail for annual grasslands, shrub communities, riparian corridors, and isolated wetlands. The Vegetation Focus Team agreed to use a modified version of CalVeg, referred to as the Upland Habitat Goals Coarse Filter Vegetation Map, which provided adequate and consistent coverage for the full study area. The Coarse Filter Vegetation Map is a composite of several data sources: 1. The USDA Forest Service CalVeg Vegetation Map (CalVeg). CalVeg is the primary source of the vegetation data. 2. The Nature Conservancy's Composite Vegetation Map (TNC Composite). Developed by the Nature Conservancy for the Central Coast Ecoregional Plan, this composite of the California Department of Forestry Hardwoods and GAP (Holland 1986) was used to fill in two gaps in coverage by CalVeg. 3. The California Department of Forestry and Fire Multi-Source Vegetation Map (CDF Multi-Source). This composite of the California Department of Forestry Hardwoods, the Department of Conservation Farmland Mapping and Monitoring Program (FMMP), and the Department of Fish and Game California Vernal Pool Assessment was used to fill in a gap in CalVeg coverage in the Suisun Marsh region of Solano County. Starting with this composite vegetation map, the team made two primary enhancements. First, a serpentine geology layer from the USDA Natural Resources Conservation Service (NRCS) State Soil Geographic (STATSGO) Database was added to capture the unique vegetation types found on serpentine soils. Second, a climatic stratification was used to differentiate the approximately one million acres identified as Annual Grasslands in CalVeg. These grasslands were separated into Cool, Moderate, Warm, and Hot Grasslands based on July maximum temperatures established by PRISM (800-meter scale Parameter-elevation Regressions on Independent Slopes Model), a climate mapping system developed at Oregon State University. Figure 5.2 illustrates these temperature stratifications. Riparian Vegetation Riparian areas pose special challenges at the regional scale of the Upland Habitat Goals Project. While the Coarse Filter Vegetation Map captures the larger patches of riparian forests as mapped by CalVeg, it misses the many narrow ribbons of remnant riparian habitat. It also fails to capture the complex mix of local and watershed-scale processes operating in riparian areas, which are critical to biodiversity for all species groups. To capture these smaller riparian areas, the USGS National Hydrologic Database (NHD) was used in the fine filter process to define stream corridors with riparian habitat potential; the streams are included in the final Conservation Lands Network. Converted Lands The last step in the development of the Coarse Filter Vegetation Map added the Farmland Mapping and Monitoring Program (FMMP) Urban and Cultivated Agricultural data, and identified rural residential parcels less than 10 acres. Appendix B: Chapter 5 describes how the Rural Residential 10 data layer was created. The FMMP data was more current (2008) than similar land use types in CalVeg, and rural residential parcels are typically found on the urban fringe and of lower conservation suitability. Collectively, these areas are referred to as "Converted Lands" and are illustrated in Figure 5.3. Converted Lands were occasionally selected by Marxan for inclusion in the Conservation Lands Network if they contained conservation targets needed to meet the 90%, 75%, or 50% goals, or the 247-acre hexagon included 10% or more of protected lands. As noted in Chapter 4, lands over-selected by Marxan were removed except for the location of the target. Riparian Vegetation Riparian areas pose special challenges at the regional scale of the Upland Habitat Goals Project. While the Coarse Filter Vegetation Map captures the larger patches of riparian forests as mapped by CalVeg, it misses the many narrow ribbons of remnant riparian habitat. It also fails to capture the complex mix of local and watershed-scale processes operating in riparian areas, which are critical to biodiversity for all species groups. To capture these smaller riparian areas, the USGS National Hydrologic Database (NHD) was used in the fine filter process to define stream corridors with riparian habitat potential; the streams are included in the final Conservation Lands Network. Converted Lands The last step in the development of the Coarse Filter Vegetation Map added the Farmland Mapping and Monitoring Program (FMMP) Urban and Cultivated Agricultural data, and identified rural residential parcels less than 10 acres. Appendix B: Chapter 5 describes how the Rural Residential 10 data layer was created. The FMMP data was more current (2008) than similar land use types in CalVeg, and rural residential parcels are typically found on the urban fringe and of lower conservation suitability. Collectively, these areas are referred to as "Converted Lands" and are illustrated in Figure 5.3. Converted Lands were occasionally selected by Marxan for inclusion in the Conservation Lands Network if they contained conservation targets needed to meet the 90%, 75%, or 50% goals, or the 247-acre hexagon included 10% or more of protected lands. As noted in Chapter 4, lands over-selected by Marxan were removed except for the location of the target. Riparian Vegetation Riparian areas pose special challenges at the regional scale of the Upland Habitat Goals Project. While the Coarse Filter Vegetation Map captures the larger patches of riparian forests as mapped by CalVeg, it misses the many narrow ribbons of remnant riparian habitat. It also fails to capture the complex mix of local and watershed-scale processes operating in riparian areas, which are critical to biodiversity for all species groups. To capture these smaller riparian areas, the USGS National Hydrologic Database (NHD) was used in the fine filter process to define stream corridors with riparian habitat potential; the streams are included in the final Conservation Lands Network. Converted Lands The last step in the development of the Coarse Filter Vegetation Map added the Farmland Mapping and Monitoring Program (FMMP) Urban and Cultivated Agricultural data, and identified rural residential parcels less than 10 acres. Appendix B: Chapter 5 describes how the Rural Residential 10 data layer was created. The FMMP data was more current (2008) than similar land use types in CalVeg, and rural residential parcels are typically found on the urban fringe and of lower conservation suitability. Collectively, these areas are referred to as "Converted Lands" and are illustrated in Figure 5.3. Converted Lands were occasionally selected by Marxan for inclusion in the Conservation Lands Network if they contained conservation targets needed to meet the 90%, 75%, or 50% goals, or the 247-acre hexagon included 10% or more of protected lands. As noted in Chapter 4, lands over-selected by Marxan were removed except for the location of the target. Riparian Vegetation Riparian areas pose special challenges at the regional scale of the Upland Habitat Goals Project. While the Coarse Filter Vegetation Map captures the larger patches of riparian forests as mapped by CalVeg, it misses the many narrow ribbons of remnant riparian habitat. It also fails to capture the complex mix of local and watershed-scale processes operating in riparian areas, which are critical to biodiversity for all species groups. To capture these smaller riparian areas, the USGS National Hydrologic Database (NHD) was used in the fine filter process to define stream corridors with riparian habitat potential; the streams are included in the final Conservation Lands Network. Converted Lands The last step in the development of the Coarse Filter Vegetation Map added the Farmland Mapping and Monitoring Program (FMMP) Urban and Cultivated Agricultural data, and identified rural residential parcels less than 10 acres. Appendix B: Chapter 5 describes how the Rural Residential 10 data layer was created. The FMMP data was more current (2008) than similar land use types in CalVeg, and rural residential parcels are typically found on the urban fringe and of lower conservation suitability. Collectively, these areas are referred to as "Converted Lands" and are illustrated in Figure 5.3. Converted Lands were occasionally selected by Marxan for inclusion in the Conservation Lands Network if they contained conservation targets needed to meet the 90%, 75%, or 50% goals, or the 247-acre hexagon included 10% or more of protected lands. As noted in Chapter 4, lands over-selected by Marxan were removed except for the location of the target. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  13. Title: Red-Backed Vole Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008

    Contributors:

    Summary: This polygon shapefile depicts the range map the western red-backed vole (Myodes californicus) that were pulled out and then reversed so the polygon represents areas outside of their range. This creates a mask so the actual species ranges can be shown while the area outside of its range can be masked out. Vector datasets are a component of the California Wildlife Habitat Relationships (CWHR) range maps, a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution and habitat relationships for 694 species of amphibians, reptiles, birds and mammals known to occur regularly in the state. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Red-Backed Vole Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/dr159vx2168. The following information describes, and should always accompany, the California Department of Fish and Game's California Wildlife Habitat Relationship System (CWHR) species distribution data. The data is organized into four folders according to the four major taxonomic groups in CWHR: amphibians, reptiles, birds and mammals. Each species is represented by a single shapefile and is named according to its 4 digit alpha-numeric CWHR ID code. The file lookup.xls contains a record for each species including its CWHR ID, scientific name, common name, and range map revision history. Each layer contains two attributes: a season code and a SHAPE_NAME or CWHR ID code. Season codes include S for summer-only, W for winter-only, and Y for yearlong. A few species have a migration-only stopover location mapped and represented with an "M". The CWHR System software contains species predictions for migration-only locations, yet most of these are not mapped. The CWHR species range maps are continually being reviewed and updated as new animal occurrence data becomes available, especially in digital format. While the original maps were digitized from 1:5,000,000 scale depictions of range, a major revision effort started in 1995 to have maps reviewed and delineated by species-level experts at a scale of 1:1,000,000. Maps dated later than 1995 are therefore much more detailed and precise in their representation of a species' range. Increasingly, species-level experts and CWHR staff have made every effort, where justified by the distribution of known species observations or known habitat associations, to represent a species' range with standard polygons of major geographic features in California such as mountain ranges, valleys, buffered river corridors, and ecological subsections of California. The smallest units of the "Ecological subregions of California: section and subsection descriptions" (Miles and Goudy, 1997. USDA Forest Service Report No. R5-EM-TP-005) capture areas with very similar soils, vegetation, precipitation, geology, climate, and geography. In cases where a population of a species is known to be isolated, its point location is buffered to a minimum radius of 2 miles. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  14. Title: Fish Passage Barriers: San Francisco Bay Area, California, 2009

    Contributors:

    Summary: This point shapefile depicts data for the nine county San Francisco Bay Area Region, California from the Passage Assessment Database, which includes locations of existing and potential barriers to salmonid migration in streams with basic information about each record. The California Department of Fish and Wildlife Passage Assessment Database (PAD) is an ongoing inventory of known and potential barriers to anadromous fish, compiling currently available fish passage information from more than 100 data sources and allowing past and future barrier assessments to be standardized and stored in one place. The inventory is to be used to identify barriers suitable for removal or modification to restore spawning and riparian habitat for salmon and steelhead, and to enhance aquatic and riparian habitat. The PAD is intended to be compatible with a variety of other data sets related to anadromous fish issues and all records are saved with geographic location information. This file can be used to represent the known and potential barriers on maps or to provide latitude/longitude coordinates. Each barrier record is indexed to the 24k high-resolution National Hydrography Dataset allowing the user to combine the PAD with other fisheries data tied to the same hydrography. The Fish Screen and Fish Passage Program (FSFPP) conducts inventories of all screened and unscreened diversions and fish passage problems via site visits; it gathers information on the size and number of diversions at each site and presence of existing fish protective facilities. The FSFPP database is fairly comprehesive for the Central Valley streams (Sacramento and San Joaquin Rivers systems) and complements PAD that focuses mainly on California's coastal region. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Fish Passage Barriers: San Francisco Bay Area, California, 2009. Bay Area Open Space Council. Available at http://purl.stanford.edu/pp400wd2703. California Fish Passage Assessment Database (CalFish): http://www.calfish.org/tabid/420/Default.aspx This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  15. Title: Pocket Mouse Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008

    Contributors:

    Summary: This polygon shapefile depicts the range map the San Joaquin pocket mouse (Perognathus inornatus) that were pulled out and then reversed so the polygon represents areas outside of their range. This creates a mask so the actual species ranges can be shown while the area outside of its range can be masked out. Vector datasets are a component of the California Wildlife Habitat Relationships (CWHR) range maps, a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution and habitat relationships for 694 species of amphibians, reptiles, birds and mammals known to occur regularly in the state. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Pocket Mouse Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/wn963mb8543. The following information describes, and should always accompany, the California Department of Fish and Game's California Wildlife Habitat Relationship System (CWHR) species distribution data. The data is organized into four folders according to the four major taxonomic groups in CWHR: amphibians, reptiles, birds and mammals. Each species is represented by a single shapefile and is named according to its 4 digit alpha-numeric CWHR ID code. The file lookup.xls contains a record for each species including its CWHR ID, scientific name, common name, and range map revision history. Each layer contains two attributes: a season code and a SHAPE_NAME or CWHR ID code. Season codes include S for summer-only, W for winter-only, and Y for yearlong. A few species have a migration-only stopover location mapped and represented with an "M". The CWHR System software contains species predictions for migration-only locations, yet most of these are not mapped. The CWHR species range maps are continually being reviewed and updated as new animal occurrence data becomes available, especially in digital format. While the original maps were digitized from 1:5,000,000 scale depictions of range, a major revision effort started in 1995 to have maps reviewed and delineated by species-level experts at a scale of 1:1,000,000. Maps dated later than 1995 are therefore much more detailed and precise in their representation of a species' range. Increasingly, species-level experts and CWHR staff have made every effort, where justified by the distribution of known species observations or known habitat associations, to represent a species' range with standard polygons of major geographic features in California such as mountain ranges, valleys, buffered river corridors, and ecological subsections of California. The smallest units of the "Ecological subregions of California: section and subsection descriptions" (Miles and Goudy, 1997. USDA Forest Service Report No. R5-EM-TP-005) capture areas with very similar soils, vegetation, precipitation, geology, climate, and geography. In cases where a population of a species is known to be isolated, its point location is buffered to a minimum radius of 2 miles. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  16. Title: Mammal Specimen Provenances: San Francisco Bay Area, California, 2011

    Contributors:

    Summary: The Museum of Vertebrate Zoology (MVZ) mammal collection is the fourth largest in the United States and the second largest such collection associated with a U.S. academic institution. It contains over 230,000 skin, skull, skeleton and fluid-preserved specimens. Over 33,700 are also represented by frozen or fluid preserved tissues. The collection includes 364 type specimens, making it the fourth largest collection of such specimens in the US. Karyotype (chromosome) preparations are available for ca. 4,000 rodent specimens. These consist of slides of chromosome preparations and, in some cases, black and white photos and/or 35 mm negatives of chromosome spreads. The mammal collection also houses large series of lab-raised specimens from research by Francis B. Sumner, Richard D. Sage, and William Z. Lidicker. This point shapefile displays original points of discovery of mammal specimens in the nine county San Francisco Bay Area Region, California. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Mammal Specimen Provenances: San Francisco Bay Area, California, 2011. Bay Area Open Space Council. Available at http://purl.stanford.edu/zd171nh4199. Museum of Vertebrate Zoology at Berkeley Herpetological Collection: http://mvz.berkeley.edu/Mammal_Collection.html This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  17. Title: Kangaroo Rat Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008

    Contributors:

    Summary: This polygon shapefile depicts the range map the Heermann's kangaroo rat (Dipodomys heermanni) that were pulled out and then reversed so the polygon represents areas outside of their range. This creates a mask so the actual species ranges can be shown while the area outside of its range can be masked out. Vector datasets are a component of the California Wildlife Habitat Relationships (CWHR) range maps, a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution and habitat relationships for 694 species of amphibians, reptiles, birds and mammals known to occur regularly in the state. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Kangaroo Rat Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/kk795rf9286. The following information describes, and should always accompany, the California Department of Fish and Game's California Wildlife Habitat Relationship System (CWHR) species distribution data. The data is organized into four folders according to the four major taxonomic groups in CWHR: amphibians, reptiles, birds and mammals. Each species is represented by a single shapefile and is named according to its 4 digit alpha-numeric CWHR ID code. The file lookup.xls contains a record for each species including its CWHR ID, scientific name, common name, and range map revision history. Each layer contains two attributes: a season code and a SHAPE_NAME or CWHR ID code. Season codes include S for summer-only, W for winter-only, and Y for yearlong. A few species have a migration-only stopover location mapped and represented with an "M". The CWHR System software contains species predictions for migration-only locations, yet most of these are not mapped. The CWHR species range maps are continually being reviewed and updated as new animal occurrence data becomes available, especially in digital format. While the original maps were digitized from 1:5,000,000 scale depictions of range, a major revision effort started in 1995 to have maps reviewed and delineated by species-level experts at a scale of 1:1,000,000. Maps dated later than 1995 are therefore much more detailed and precise in their representation of a species' range. Increasingly, species-level experts and CWHR staff have made every effort, where justified by the distribution of known species observations or known habitat associations, to represent a species' range with standard polygons of major geographic features in California such as mountain ranges, valleys, buffered river corridors, and ecological subsections of California. The smallest units of the "Ecological subregions of California: section and subsection descriptions" (Miles and Goudy, 1997. USDA Forest Service Report No. R5-EM-TP-005) capture areas with very similar soils, vegetation, precipitation, geology, climate, and geography. In cases where a population of a species is known to be isolated, its point location is buffered to a minimum radius of 2 miles. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  18. Title: Slope Channel Classification: San Francisco Bay Area, California, 2008

    Contributors:

    Summary: This polyline shapefile depicts data compiled within the nine county San Francisco Bay Area Region, California using the following methods: 1) Using National Hydrography Dataset (NHD) stream data for the entire Bay Area Watershed; we ran zonal statistics using stream segments (unique Reach ID field) as the zone and the 30m DEM elevation as the value raster; 2) Next we took the difference between the maximum and minimum elevations, divided by the length of the stream segment and then multiplied by 100 to get percent slope; and 3) Finally symbolized the data by slope categories - Valley Floors, Foothills and Headwaters - according to what work that the Napa Resource Conservation District has done in Napa County, Fish Ranges by Channel Slope for the Napa River Basin (Koehler 2007). The NHD and the 30m DEM do not match up perfectly. It was not in the scope of the project to do a detailed analysis of stream slope, but rather provide a regional look at how the major stream segments break down into three classes based on the scale of San Francisco Bay Area Upland Habitat Goals Project. This dataset was used during the Fish and Riparian Focus Team to get a better understanding of the slope classes throughout the entire region. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Slope Channel Classification: San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/kk696ns2760. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  19. Title: Vernal Pool Complexes: San Francisco Bay Area, California, 1998

    Contributors:

    Summary: This polygon shapefile depicts existing vernal pool complexes, not individual vernal pools, in the nine county San Francisco Bay Area Region, California as identified and mapped by Dr. Robert F. Holland. The purpose of the inventory was to map the distribution of vernal pool complexes for use by the United States Fish and Wildlife Service in recovery planning for listed and sensitive species. True color aerial slides from the Department of Water Resources were interpreted and vernal pool complexes were identified. Complexes more than 40 acres in size were then digitized as polygons and given a density rating. Since the minimum mapping unit of the coverage is 40 acres, it may not provide the level of detail required for larger scale (smaller area, more site-specific) conservation planning. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Vernal Pool Complexes: San Francisco Bay Area, California, 1998. Bay Area Open Space Council. Available at http://purl.stanford.edu/yt005zz5295. Converted to California Teale Albers NAD83 by the California Department of Fish and Game -- BEGIN ORIGINAL METADATA - THIS INFORMATION MAY NOT BE CURRENT -- CALIFORNIA DEPARTMENT OF FISH AND GAME HABITAT CONSERVATION DIVISION WETLANDS INVENTORY AND CONSERVATION UNIT (WICU) METADATA FOR HOLLAND'S CENTRAL VALLEY VERNAL POOLS COVERAGE LICENSE AGREEMENT AND PROTOCOL FOR DISTRIBUTION 1) By registering, downloading, and/or otherwise accepting this data-set, the user agrees to abide by all terms and conditions listed herein. 1) This data-set is not intended for regulatory purposes and may not be used for such purposes. 1) This data-set may not be redistributed without prior written approval from the California Department of Fish and Game, W.I.C.U. coordinator (Mr. Joe Carboni : 916/324-1414). 1) Graphic or textual representation of data shall include appropriate references to sources including author, the U.S. Fish and Wildlife Service (USFWS) and the California Department of Fish and Game (CDFG). 1) Data shall not be amended, edited, or revised in any manner or used inappropriately to produce inaccurate, incomplete, or misleading analyses, reports, maps, or related products. 1) All rights in data remain the property of the U.S. Fish and Wildlife Service and USFWS reserves the right to revoke use privileges at any time. SUMMARY This Arc/Info coverage is a polygon layer of vernal pool complexes greater than 40 acres in size for 29 counties throughout the greater Central Valley, and some north bay counties. In 1995, Dr. Robert F. Holland identified the complexes on aerial photos (the most recent available for each county) and traced the polygons onto USGS 7.5' quads from which they were digitized. Vernal pool complexes were then given a density rating. The coverage was refined in June of 1998, with SPOT Imagery and recent U2 (low-flying aircraft) photography. The layer does not contain delineations of individual vernal pools and was not intended for use in wetland delineations. FULL METADATA (DRAFT) COVERAGE NAME: usfwsvp2 COVERAGE DATE: June 22nd, 1998 METADATA FILE: vpool_meta.txt METADATA DATE: August, 1998 COVERAGE DESCRIPTION: The VERNAL POOLS coverage (USFWSVP) is a polygon coverage representing existing vernal pool complexes in California's Central Valley, as identified and mapped by Dr. Robert F. Holland. The purpose of the inventory was to map the distribution of extant CA Central Valley vernal pool complexes for use by the U.S. Fish and Wildlife Service in recovery planning for listed and sensitive species. True color aerial slides from the Dept of Water Resources were interpreted, and vernal pool complexes were identified. Complexes more than 40 acres in size were then digitized as polygons and given a density rating (described below). This coverage was created to help biologists and resource planners make informed decisions in their recovery and planning efforts. It depicts vernal pool complexes, not individual vernal pools. Since the minimum mapping unit of the coverage is 40 acres, it may not provide the level of detail required for larger scale (smaller area, more site-specific) conservation planning. The coverage was created using the Arc/Info command `CREATE', using an existing coverage as a template for cartographic parameters. After the initial setup of the coverage for data input, vernal pool polygon complexes were digitized into the G.I.S database. The coverage was then built, the tolerances set and the attribute fields added. The polygon boundaries were refined by Dr. Holland by reviewing U2 (low-flying aircraft) photographs and 1:130,000 scale paper plots of the original data laid over SPOT Imagery. The changes were then edited in the G.I.S. database. VITAL STATISTICS: Datum: NAD 27 Projection: Albers Units: Meters 1st Std. Parallel: 34 00 00 (34.0 degrees N) 2nd Std. Parallel: 40 30 00 (40.5 degrees N) Longitude of Origin: -120 00 00 (120.0 degrees W) Latitude of Origin: 00 00 00 (0.0 degrees) False Easting (X shift): 0 False Northing (Y shift): -4,000,000 Source: Department of Fish and Game Source Media: paper maps Source Projection: Teale Albers Source Units: meters Source Scale: 1:24,000 Capture Method: Digitized Conversion Software: ARC/INFO rev. 6.1.1 Data Structure: Vector ARC/INFO Coverage Type: Polygon ARC/INFO Precision: Double ARC/INFO Tolerances: fuzzy = .002V Number of Features: 1918 Layer Size: 1.92 MB Data Updated: June, 1998 DATA DICTIONARY: Non-standard POLYGON attribute fields: COLUMN ITEM NAME WIDTH TYPE --------------------------------------------------------- 49 QUAD_NAME 20 C 69 LUCODEOLD 1 N 70 DATEOLD 4 N 74 COUNTY 20 C 94 LUCODENEW 1 N 95 DATENEW 4 N NOTE: Items common to all POLYGON coverages: AREA, PERIMETER, USFWSVP# and USFWSVP-ID are not described here. Description of items (fields): QUADNAME: Name of USGS quadrangle (24K) where data were originally digitized from. LUCODEOLD: There are nine fields, marked 1-9. Cut_Out = 0 Density Index = 1 Density Index = 2 Density Index = 3 Cultivated = 4 Developed = 5 Mitigated Site = 6 Extirpated = 7 Disturbed DI 1 = 8 (disturbed vernal pool/density index of 1) Disturbed DI 2 = 9 (disturbed vernal pool/density index of 2) Density Indexes Described 0 = CUT_OUT. These polygons are 'do-nut' holes within vernal pool complexes; e.g. a cultivated feld surrounded by habitat. 1 = LOW DENSITY. Pools are small, widely and patchily scattered. At least 2 pools and usually 5 or more exist within the delineated complex. 2 = MEDIUM DENSITY. Pools are larger, more numerous, and more pervasively scattered, but still patchy within the delineated complex. 3 = HIGH DENSITY. Pools are all sizes and numerous. Pools are distributed over the entire delineated vernal pool complex. Also includes large, isolated playa-like pools. 4 = CULTIVATED. Pools are present and persist in spite of obvious cultivation, usually of hay crops. 5 = DEVELOPED. Pools are present and still visible in spite of subdivision into parcels smaller than minimum mapping size. 6 = MITIGATED SITE. The site is a mitigated area consisting within a vernal pool complex. (Not used in this project) 7 =EXTIRPATED. Pools were present in earlier photos, but were gone in 1997 U2 flight photos.. 8 = DISTURBED DI 1. This is a polygon/delineated complex that is fits the criteria of 'density index of 1', but that is disturbed in some way or form. 9 = DISTURBED DI 2. This is a polygon/delineated complex that is fits the criteria of 'density index of 2', but that is disturbed in some way or form. DATEOLD: This is the year of the photographs used for each county in the original 1995 aerial photo interpretation. COUNTY: This is the county in which the polygon is contained. LUCODENEW: These are 1997-1998 updates of LUCODEOLD, especially where land use changes have taken place. DATENEW: This is the year the check was done with SPOT Imagery and U2 photography. DATA QUALITY ASSESSMENT This coverage depicts vernal pool complexes, not individual vernal pools. The density ratings are subjective but were validated with actual point occurrence data of individual vernal pools. (For a copy of the paper "A Comparison of Two Methods for Mapping Vernal Pools" contact Monica Parisi, Wildlife Biologist at (916) 657-4341 or e-mail The validation suggested that 1.) dense complexes of vernal pools were being picked up by aerial photo interpretation and 2.) the density ratings should not be the sole basis for identifying high priority preserve areas, especially at the local planning level. At the local level, this layer is probably best used for suggesting new areas for regional preserves, areas which may never have been considered because of a lack of information. DATA CONTACTS Please contact one of the individuals below for questions about the data or for a copy of "Mapping Project for the Vernal Pool Recovery Plan Methodology", a report by Dr. Robert F. Holland to the U.S. Fish and Wildlife Service (January, 1996). Craig Turner, Research Analyst (G.I.S) Phone: (916) 324-8298 E-mail: cturner@dfg.ca.gov Kari Lewis, Land Conservation Planner Phone: (916) 322-1869 E-mail: klewis@dfg.ca.gov California Department of Fish and Game Natural Heritage Division 1807 `13th' street, Sacramento 95814. -- END ORIGINAL METADATA -- This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  20. Title: Fire Rotation: San Francisco Bay Area, California, 2004

    Contributors:

    Summary: This raster dataset depicts fire rotation class intervals calculated from 1950-2003 fire history on land areas grouped into strata based on fire environment conditions for the nine county San Francisco Bay Area Region, California. These strata are defined by vegetation, climate, direct protection agency and elevation. The fire rotation interval is the expected number of years it would take, based on past fire rates, to burn an area equivalent to that of a given stratum. Fire rotation interval for a given stratum is calculated by dividing the mean annual number of acres burned into the total area of the stratum. Finally, fire rotation values are grouped into classes. The larger fire rotation values correspond to less frequent burning. In contrast the higher the rotation class value is, the more frequent fire is in that stratum. The source data was compiled by the California Department of Forestry and Fire Protection and the United States Department of Agriculture Forest Service. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Fire Rotation: San Francisco Bay Area, California, 2004. Bay Area Open Space Council. Available at: http://purl.stanford.edu/tw527tc9048 Source metadata and data available at: http://frap.fire.ca.gov/data/frapgisdata-subset.php This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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