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  1. Title: Ports: United States and Territories, 2012

    Contributors:

    Summary: This point shapefile depicts physical information on commercial facilities at the principal United States coastal, Great Lakes and inland ports. The data consists of listings of port area waterfront facilities, including information on berthing, cranes, transit sheds, grain elevators, marine repair plants, fleeting areas, and docking and storage facilities. Collection of data is performed on a rotational basis to ensure on-site accuracy at each facility. This layer is part of the 2014 National Transportation Atlas Database. The National Transportation Atlas Databases 2014 (NTAD2014) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure and other political and administrative entities. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the re¬lated attribute information for these features. This data supports research, analysis, and decision-making across all transportation modes. It is most useful at the national level, but has major applications at regional, state and local scales throughout the transportation community. The data used to compile NTAD2014 was provided by our partners within the United States Department of Transportation (USDOT) and by other agencies throughout the United States Federal Government. These contributors are the actual data stewards and are ultimately responsible for the maintenance and accuracy of their data. The Navigation Data Center (NDC) had several objectives in developing the United States Waterway Data. These objectives support the concept of a National Spatial Data Infrastructure to: provide public access to national waterway data; foster inter-agency and intra-agency cooperation through data sharing; provide a mechanism to integrate waterway data (U.S. Army Corps of Engineers Port/Facility and U.S. Coast Guard Accident Data, for example); provide a basis for intermodal analysis; assist standardization of waterway entity definitions (Ports/Facilities, Locks, etc.); provide public access to the National Waterway Network which can be used as a basemap to support graphical overlays and analysis with other spatial data such as waterway and modal network/facility databases; and provide reliable data to support future waterway and intermodal applications. United States. Department of Transportation. Research and Innovative Technology Administration. (2014). Ports: United States and Territories, 2012. National Transportation Atlas Database 2014. Available at: http://purl.stanford.edu/gz919pm1319.

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  2. Title: Waterway Locks: United States, 2013

    Contributors:

    Summary: This point shapefile contains the locations of waterways locks in the United States. The Navigation Data Center had several objectives in developing the United States Waterway Data. These objectives support the concept of a National Spatial Data Infrastructure to: provide public access to national waterway data; foster inter-agency and intra-agency cooperation through data sharing; provide a mechanism to integrate waterway data (U.S. Army Corps of Engineers Port/Facility and U.S. Coast Guard Accident Data, for example); provide a basis for intermodal analysis; assist standardization of waterway entity definitions (Ports/Facilities, Locks, etc.); provide public access to the National Waterway Network (which can be used as a basemap to support graphical overlays and analysis with other spatial data, such as waterway and modal network/facility databases); and provide reliable data to support future waterway and intermodal applications. The data included in these files are based upon the Annual Summary of Lock Statistics published by the U.S. Army Corps of Engineers/Corps of Engineers –Institute for Water Resources (CEIWR) Navigation Data Center. The data are collected at each Corps owned and/or operated Lock by Corps personnel and towing industry vessel operators. This data was collected from the U.S. Army Corps of Engineers and distributed on the National Transportation Atlas Database (NTAD) 2014. The National Transportation Atlas Databases 2014 (NTAD2014) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure and other political and administrative entities. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the re¬lated attribute information for these features. This data supports research, analysis, and decision-making across all transportation modes. It is most useful at the national level, but has major applications at regional, state and local scales throughout the transportation community. The data used to compile NTAD2014 was provided by our partners within the United States Department of Transportation (USDOT) and by other agencies throughout the United States Federal Government. These contributors are the actual data stewards and are ultimately responsible for the maintenance and accuracy of their data. Monthly summary statistics are based on data from the Lock Performance Monitoring System (LPMS). The LPMS was developed to collect a 100% sample of data on the locks that are owned and/or operated by the United States Army Corps of Engineers. Each record contains data summarized monthly by lock chamber, including direction upbound and number and types of vessels and lockages (recreation, commercial, tows, other), cuts, hardware operations, delay and processing times, number of tows and all vessels delayed, total tons, commodity tonnages and number of barges. The data are by waterway and by calendar year. The waterway files contain 5 years of data for one waterway. The calendar year files contain 1 year of data for all waterways. United States. Department of Transportation. Research and Innovative Technology Administration. (2014). Waterway Locks: United States, 2013. National Transportation Atlas Database 2014. Available at: http://purl.stanford.edu/dm938nj2170.

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  3. Title: Septic Systems, New York State, 2011

    Contributors:

    Summary: This dataset presents counts of septic systems at the census tract level. Data were derived from 2011 county parcel data and aggregated by census tract. Septic systems are used by 22% of homes in New York State, and they are important components of the wastewater infrastructure. This dataset quantifies how many septic systems are used across New York State.

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  4. Title: MassGIS 2003 Massachusetts Major Drainage Basins (Arcs) (March 2003)

    Contributors:

    Summary: This datalayer, produced by MassGIS, contains polylines representing boundaries of the 28 major drainage basins of Massachusetts as defined by the USGS Water Resources Division and the MA Water Resources Commission. (See also the Major Drainage Basins (Polygons) datalayer).

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  5. Title: MassGIS 2003 Massachusetts Major Watersheds (Polygons) (June 2000)

    Contributors:

    Summary: This datalayer contains polygons representing Massachusetts watersheds (see also the Watersheds (Arcs) datalayer). MassGIS has produced a statewide digital datalayer of the 32 major watersheds covering Massachusetts as defined by the USGS Water Resources Division and the MA Water Resources Commission. The datalayer is called Watersheds. Unlike the Major Drainage Basins layer, the watersheds in this layer extend beyond the state boundary to include the full extent of either the full watershed or a full USGS sub-basin.

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  6. Title: MassGIS 2003 Massachusetts Major Drainage Basins (Polygons) (March 2003)

    Contributors:

    Summary: This datalayer, produced by MassGIS, contains polygons representing the 28 major drainage basins of Massachusetts as defined by the USGS Water Resources Division and the MA Water Resources Commission. (See also the Major Drainage Basins (Arcs) datalayer).

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  7. Title: MassGIS 2003 Massachusetts Major Watersheds (Arcs) (June 2000)

    Contributors:

    Summary: This datalayer contains lines representing Massachusetts watershed boundaries (see also the Watersheds (Polygons) datalayer). MassGIS has produced a statewide digital datalayer of the 32 major watersheds covering Massachusetts as defined by the USGS Water Resources Division and the MA Water Resources Commission. The datalayer is called Watersheds. Unlike the Major Drainage Basins layer, the watersheds in this layer extend beyond the state boundary to include the full extent of either the full watershed or a full USGS sub-basin.

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  8. Title: MassGIS 2003 Massachusetts aqueducts (July 1998)

    Contributors:

    Summary: The Aqueducts layer contains linework representing water-transporting conduits from 1:100,000 U.S. Geological Survey Digital Line Graph (DLG) files, with additional linework added by the Massachusetts Water Resources Authority.

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  9. Title: World (Earthquakes, 2003)

    • Point data
    • 2003
    Contributors:

    Summary: This data base provides information on earthquakes from2100 B.C. to the present. The data base containsearthquakes with known magnitude values between 0.1 and9.9. Earthquakes that have no computed magnitude values arealso included in the data base. Users of micro-earthquakedata (magnitude less than or equal to 0.0) should contactinstitutions that operate seismograph networks in theirarea of interest. In reality, there are very few eventswith magnitude less than 2.0 in the data base.

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  10. Title: Urban, Agricultural, Industrial, and Natural Land, San Mateo County Sea Level Rise Vulnerability Assessment Project, 2012

    Contributors:

    Summary: This polygon shapefile represents a land use survey of San Mateo County conducted by the California Department of Water Resources, North Central Regional Office staff. The field work for this survey was conducted during June 2012 by staff visiting each field and noting what was grown. Land use field boundaries were digitized using ArcGIS 10.0 with 2010 National Agriculture Imagery Program (NAIP) one-meter imagery as the base. Field boundaries were reviewed and updated using 2012 NAIP imagery when it became available. Field boundaries were not drawn to represent legal parcel (ownership) boundaries, or meant to be used as parcel boundaries. Images and land use boundaries were loaded onto laptop computers that were used as the field data collection tools. GPS units connected to the laptops were used to confirm surveyor's location with respect to the fields. Staff took these laptops into the field and virtually all the areas were visited to positively identify the land use. Land use codes were digitized in the field on laptop computers using ESRI ArcMAP software, version 10.0. This layer is part of the San Mateo County Sea Level Rise Vulnerability Assessment Project. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. County of San Mateo Information Services Department and California Department of Water Resources. (2019). Urban, Agricultural, Industrial, and Natural Land, San Mateo County Sea Level Rise Vulnerability Assessment Project, 2012. County of San Mateo Information Services Department. Available at: http://purl.stanford.edu/tt136ms5377. 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: Crops, HAZUS, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2015

    Contributors:

    Summary: This polygon shapefile contains the HAZUS flood model for crops in San Mateo County, California, Hazus is the Federal Emergency Management Agency’s (FEMA) methodology for estimating potential losses from hazards. Source: California Department of Water Resources. This layer is part of the San Mateo County Sea Level Rise Vulnerability Assessment Project. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. County of San Mateo Information Services Department and California Department of Water Resources. (2019). Crops, HAZUS, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2015. County of San Mateo Information Services Department. Available at: http://purl.stanford.edu/mk511fb1457. 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: Runways, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2015

    Contributors:

    Summary: This point shapefile represents runways in San Mateo County, California. Source: California Department of Water Resources, Risk Characterization Study. This layer is part of the San Mateo County Sea Level Rise Vulnerability Assessment Project. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. County of San Mateo Information Services Department and California Department of Water Resources. (2019). Runways, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2015. County of San Mateo Information Services Department. Available at: http://purl.stanford.edu/ss067pg2033. 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: Cleanup Sites, San Mateo County Sea Level Rise Vulnerability Assessment Project, 2015

    Contributors:

    Summary: This point shapefile represents sites where recent or historical unauthorized releases of pollutants to the environment, including soil, groundwater, surface water, and sediment, have occurred. Source: California Water Board. Source Date: August 2015. This layer is part of the San Mateo County Sea Level Rise Vulnerability Assessment Project. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. County of San Mateo Information Services Department and California State Water Resources Board. (2019). Cleanup Sites, San Mateo County Sea Level Rise Vulnerability Assessment Project, 2015. County of San Mateo Information Services Department. Available at: http://purl.stanford.edu/yw913fj3099. 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: Cleanup Sites (no Solid Waste Facilities), San Mateo County Sea Level Rise Vulnerability Assessment Project, 2015

    Contributors:

    Summary: This point shapefile represents sites where recent or historical unauthorized releases of pollutants to the environment, including soil, groundwater, surface water, and sediment, have occurred (except solid waste). Source: California Water Board. Source Date: August 2015. This layer is part of the San Mateo County Sea Level Rise Vulnerability Assessment Project. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. County of San Mateo Information Services Department and California State Water Resources Board. (2019). Cleanup Sites (no Solid Waste Facilities), San Mateo County Sea Level Rise Vulnerability Assessment Project, 2015. County of San Mateo Information Services Department. Available at: http://purl.stanford.edu/kp142mq6228. 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: Railway Bridges, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2015

    Contributors:

    Summary: This point shapefile represents railway bridges in the San Mateo County Sea Level Rise Vulnerability Assessment project area. Source: California Department of Water Resources, Risk Characterization Study. This layer is part of the San Mateo County Sea Level Rise Vulnerability Assessment Project. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. County of San Mateo Information Services Department and California Department of Water Resources. (2019). Railway Bridges, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2015. County of San Mateo Information Services Department. Available at: http://purl.stanford.edu/bp708bh4895. 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: Census Blocks, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2015

    Contributors:

    Summary: This polygon shapefile represents census blocks within the San Mateo County Sea Level Rise Vulnerability Assessment Project area. Data include various house types, income ratio, total pop, total struct, struct/content replacement values, year built. Source: California Department of Water Resources. This layer is part of the San Mateo County Sea Level Rise Vulnerability Assessment Project. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. County of San Mateo Information Services Department and California Department of Water Resources. (2019). Census Blocks, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2015. County of San Mateo Information Services Department. Available at: http://purl.stanford.edu/th759kj2246. 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: Groundwater Basins, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2016

    Contributors:

    Summary: Ground Water Basins in San Mateo County. Source: California Department of Water Resources. This layer is part of the San Mateo County Sea Level Rise Vulnerability Assessment Project. These data are intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. County of San Mateo Information Services Department and California Department of Water Resources. (2019). Groundwater Basins, San Mateo County Sea Level Rise Vulnerability Assessment Project Area, 2016. County of San Mateo Information Services Department. Available at: http://purl.stanford.edu/qq634pr0965. 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: Groundwater Elevation Change Color Ramp, California, Spring 2015 to Spring 2016

    Contributors:

    Summary: This raster dataset (GeoTIFF) represents groundwater elevation in California using a color ramp. These data represent groundwater changes between spring 2015 and spring 2016. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center. California Department of Water Resources. (2016). Groundwater Elevation Change Color Ramp, California, Spring 2015 to Spring 2016. California Department of Water Resources. Available at: http://purl.stanford.edu/gt506qf5033. 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: Groundwater Elevation Change, California, Spring 2013 to Spring 2016

    Contributors:

    Summary: This point shapefile represents changes in groundwater levels in California. These data represent groundwater changes between spring 2013 and spring 2016. Each point shows the calculated difference between the measured groundwater levels from the time period. The change in groundwater level is plotted on the map only if a measurement exists in both time periods as well. The colored points in the measurements layer show the location of all wells where the groundwater level change is determined. This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center. California Department of Water Resources. (2016). Groundwater Elevation Change, California, Spring 2013 to Spring 2016. California Department of Water Resources. Available at: http://purl.stanford.edu/tt235rq6188. 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: Groundwater Elevation Change Color Ramp, California, Fall 2013 to Fall 2014

    Contributors:

    Summary: This raster dataset (GeoTIFF) represents groundwater elevation in California using a color ramp. These data represent groundwater changes between fall 2013 and fall 2014. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center. California Department of Water Resources. (2016). Groundwater Elevation Change Color Ramp, California, Fall 2013 to Fall 2014. California Department of Water Resources. Available at: http://purl.stanford.edu/vs884hv1604. 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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