10,000+ results returned
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Title: New York City Land Cover, 2010
Contributors:- Raster data
- 2010
Summary: New York City Land Cover, 2010 is a high resolution landcover dataset for New York City. This is the 3ft version of the high-resolution land cover dataset for New York City. Seven land cover classes were mapped: (1) tree canopy, (2) grass/shrub, (3) bare earth, (4) water, (5) buildings, (6) roads, and (7) other paved surfaces. The minimum mapping unit for the delineation of features was set at 3 square feet. The primary sources used to derive this land cover layer were the 2010 LiDAR and the 2008 4-band orthoimagery. Ancillary data sources included GIS data (city boundary, building footprints, water, parking lots, roads, railroads, railroad structures, ballfields) provided by New York City (all ancillary datasets except railroads); UVM Spatial Analysis Laboratory manually created railroad polygons from manual interpretation of 2008 4-band orthoimagery.
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Title: Bronx Buildings, 1873
Contributors:- Polygon data
- 1873
Summary: Bronx 1873 Buildings is a polygon theme representing buildings in the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Streets, 1873
Contributors:- Line data
- 1873
Summary: Bronx 1873 Streets is a line theme representing streets in the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Railroad Lines, 1873
Contributors:- Line data
- 1873
Summary: Bronx 1873 Railroad Lines is a line theme representing railroads in the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Marshlands, 1873
Contributors:- Polygon data
- 1873
Summary: Bronx 1873 Marshlands is a polygon theme representing marshlands in the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Land Area, 1873
Contributors:- Polygon data
- 1873
Summary: Bronx 1873 Land Area is a polygon theme representing land area in the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Elevation, 1873
Contributors:- Line data
- 1873
Summary: Bronx 1873 Elevation is a line theme representing elevation in the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Water Bodies, 1873
Contributors:- Polygon data
- 1873
Summary: Bronx 1873 Water Bodies is a polygon theme representing water bodies in and around the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Rivers and Streams, 1873
Contributors:- Line data
- 1873
Summary: Bronx 1873 Rivers and Streams is a line theme representing rivers in the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Aquaducts, 1873
Contributors:- Line data
- 1873
Summary: Bronx 1873 Aquaducts is a line theme representing aquaducts in the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Bronx Bathymetry Lines, 1873
Contributors:- Line data
- 1873
Summary: Bronx 1873 Bathymetry Lines is a line theme representing water depths near the Bronx in 1873. The features were digitized from the map series entitled "Topographical map made from surveys by the commissioners of the Department of Public Parks of the city of New York of that part of Westchester County adjacent to the City and County of New York embraced in chapter 534 of laws of 1871 as amended by chapter 878 of laws of 1872 " published in 1873 from the New York department of Parks.
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Title: Reducing Wildfire Risk to Forest Ecosystem Services, California, 2018
Contributors:- Raster data
- 2018
Summary: This Priority Landscape (PL) prioritizes watersheds for potential treatment to reduce wildfire risk based on threats and assets to forested lands. Ranking: The ranking varies from 1 (least risk) to 5 (greatest risk). Lands such as conifer woodlands (e.g. juniper and pinyon-juniper), oak woodlands (blue oak woodland, valley oak woodland, coastal oak woodland, etc.), shrublands, grasslands, were not included. In addition, only forested lands with a fire return interval departure (FRID) of class 2 or greater were included. This ensures that the areas most in need of treatment to restore natural fire regimes and improve ecological functions are prioritized. Assets: Surface water value: Watersheds (HUC12s) were ranked based on surface drinking water value from the USDA Forest Service's Forests to Faucet data, https://www.fs.fed.us/ecosystemservices/FS_Efforts/forests2faucets.shtml Carbon storage: Estimated amount of carbon in the forest that is in living trees above the ground was spatially imputed into a GIS layer from Forest Service FIA data by Wilson et al. (2013) using a gradient nearest neighbor (GNN) technique. See Wilson, B.T., C.W. Woodall, and D.M. Griffith, Imputing forest carbon stock estimates from inventory plots to a nationally continuous coverage. Carbon Balance and Management, 2013. 8(1): p. 15. Standing timber: Shows the estimated commercial timber volume on lands available for harvesting. Standing Timber was was primarily derived from LEMMA Structure Maps (https://lemma.forestry.oregonstate.edu/data/structure-maps) that also used Forest Service FIA data and a GNN methodology (2012 vintage). LEMMA commercial timber volume was reduced for areas of high fire severity burns through 2017 (from FRAP), BAER imagery for areas of high severity wildfires that have occurred in 2018 (from:https://fsapps.nwcg.gov/afm/baer/download.php), and Aerial Detection Survey data of areas of high tree mortality (also subsequent to 2012). Lands not available for timber harvest were removed, including southern California and South Central Coast counties with no viable timber processing facilities. Site quality: This shows the productivity of timberland, based upon potential volume of wood (i.e. cubic feet) that can be produced per acre in a year. Site Class GIS data was produced by Wilson from Forest Service FIA data (using the same methods as for the Carbon storage layer), based upon FIA attribute SITECLCD – site productivity class code. It shows the potential timber volume produced at culmination of mean annual increment, in the standard classes used by the USFS. Large trees: Derived from FRAP vegetation layer FVEG15 (WHRSIZE), which in turn (for this attribute) came from CALVEG data of the USFS. Tree size class scores were 1=(6-11" DBH), 3=(11-24" DBH), and 5=(over 24" DBH). Threats: Fire threat: FRAP fire threat data (fthrt14_2) was derived from a combination of FRAP surface fuels data and large fire probability from the Fire Simulation (FSim) system developed by the US Forest Service Missoula, Montana Fire Sciences Laboratory. Fire Return Interval Departure (FRID): FRID shows the deviation from historic averages of fire occurrence. FRID from USFS Region 5 was used to prioritize areas most in need of treatment. FRID scores of 2, 3, and 4 were assigned scores of 1, 3, and 5 respectively. Composite Ranks: All assets were combined and the result ranked from 1 to 5 to derive a composite asset. Likewise, all threats were combined the results ranked from 1 to 5 to create a composite threat. The composite asset layer and composite threat ranks were then combined and classified to a final priority landscape rank for each 30m pixel. Watershed Ranking: A zonal mean of pixel ranks was then calculated for HUC12 watersheds (the smallest consistently delineated watershed, average approximately 24,000 acres). The end result is that each watershed is ranked from 1 (lowest threat) to 5 (highest threat) based on the combination of assets and threats and averaged by watershed. Watershed boundaries used were from the National Hydrography Dataset Watershed Boundary Dataset. This dataset was developed in 2018 to support the California Assessment of Forest and Rangelands. California. Department of Forestry and Fire Protection. (2018). Reducing Wildfire Risk to Forest Ecosystem Services, California, 2018. California. Department of Forestry and Fire Protection. Available at: https://purl.stanford.edu/nw945zv2996 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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Title: Parks, San Francisco, California, 2015
Contributors:- Polygon data
- 2015
Summary: Parks within the extent of San Francisco; park boundaries have been updated to show 2015 features.
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Title: Map of Boston and part of its suburbs : showing public recreation grounds, burial grounds and certain other public properties generally free from buildings
Contributors:- Not specified
- 1886
Summary: 88 x 69 centimeters
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Title: New York City NYPD Complaint Data, 2019
Contributors:- Point data
- 2019
Summary: New York City NYPD Complaint Data, 2019 is a point theme representing each complaint call that NYPD has received in 2019. This dataset was derived from NYC OpenData (https://data.cityofnewyork.us/Public-Safety/NYPD-Complaint-Data-Historic/qgea-i56i) in May 2020. Each record represents a criminal complaint in NYC and includes information about the type of crime, the location and time of enforcement. In addition, information related to victim and suspect demographics is also included. Columbia Libraries staff extracted each half year's records and converted them to shapefile format by state plane x/y coordinates. Some records lack geolocation information, and they have coordinates 0,0. Columbia Libraries staff has also manipulated the column names to fit them with shapefile format, and a codebook and a has been included in the download package. A penal law codebook provided by NYC OpenData is also included.
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Title: New York City Motor Vehicle Collisions, 2018
Contributors:- Point data
- 2018
Summary: New York City Motor Vehicle Collisions, 2018 is a point theme representing the location of motor vehicle collisions in the year 2018 as reported by the New York City Police Department. Attributes include the date and time of the accidents, the number of people killed or injured, the type of vehicle(s) involved in the collision, and other factors that were involved in the collision. This dataset was derived from NYC OpenData (https://data.cityofnewyork.us/Public-Safety/NYPD-Motor-Vehicle-Collisions/h9gi-nx95) in July 2019. Columbia Libraries staff extracted each year's records and converted them to shapefile format by latitude and longitude in World Geodetic System (1984) coordinates. Some records lack geolocation information, and they have coordinates 0,0. Columbia Libraries staff has also manipulated the column names to fit them with shapefile format, and a codebook has been included in the download package.
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Title: New York City NYPD Complaint Data, January-June 2018
Contributors:- Point data
- 2018
Summary: New York City NYPD Complaint Data, January-June 2018 is a point theme representing each complaint call that NYPD has received in the first half of the year 2018. This dataset was derived from NYC OpenData (https://data.cityofnewyork.us/Public-Safety/NYPD-Complaint-Data-Historic/qgea-i56i) in July 2019. Each record represents a criminal complaint in NYC and includes information about the type of crime, the location and time of enforcement. In addition, information related to victim and suspect demographics is also included. Columbia Libraries staff extracted each half year's records and converted them to shapefile format by state plane x/y coordinates. Some records lack geolocation information, and they have coordinates 0,0. Columbia Libraries staff has also manipulated the column names to fit them with shapefile format, and a codebook and a has been included in the download package. A penal law codebook provided by NYC OpenData is also included.
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Title: New York City NYPD Complaint Data, July-December 2018
Contributors:- Point data
- 2018
Summary: New York City NYPD Complaint Data, July-December 2018 is a point theme representing each complaint call that NYPD has received in the second half of the year 2018. This dataset was derived from NYC OpenData (https://data.cityofnewyork.us/Public-Safety/NYPD-Complaint-Data-Historic/qgea-i56i) in July 2019. Each record represents a criminal complaint in NYC and includes information about the type of crime, the location and time of enforcement. In addition, information related to victim and suspect demographics is also included. Columbia Libraries staff extracted each half year's records and converted them to shapefile format by state plane x/y coordinates. Some records lack geolocation information, and they have coordinates 0,0. Columbia Libraries staff has also manipulated the column names to fit them with shapefile format, and a codebook and a has been included in the download package. A penal law codebook provided by NYC OpenData is also included.
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Title: New York City Motor Vehicle Collisions, 2017
Contributors:- Point data
- 2017
Summary: New York City Motor Vehicle Collisions, 2017 is a point theme representing the location of motor vehicle collisions in the year 2017 as reported by the New York City Police Department. Attributes include the date and time of the accidents, the number of people killed or injured, the type of vehicle(s) involved in the collision, and other factors that were involved in the collision. This dataset was derived from NYC OpenData (https://data.cityofnewyork.us/Public-Safety/NYPD-Motor-Vehicle-Collisions/h9gi-nx95) in July 2019. Columbia Libraries staff extracted each year's records and converted them to shapefile format by latitude and longitude in World Geodetic System (1984) coordinates. Some records lack geolocation information, and they have coordinates 0,0. Columbia Libraries staff has also manipulated the column names to fit them with shapefile format, and a codebook has been included in the download package.
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Title: New York City NYPD Complaint Data, July-December 2017
Contributors:- Point data
- 2017
Summary: New York City NYPD Complaint Data, July-December 2017 is a point theme representing each complaint call that NYPD has received in the second half of the year 2017. This dataset was derived from NYC OpenData (https://data.cityofnewyork.us/Public-Safety/NYPD-Complaint-Data-Historic/qgea-i56i) in July 2019. Each record represents a criminal complaint in NYC and includes information about the type of crime, the location and time of enforcement. In addition, information related to victim and suspect demographics is also included. Columbia Libraries staff extracted each half year's records and converted them to shapefile format by state plane x/y coordinates. Some records lack geolocation information, and they have coordinates 0,0. Columbia Libraries staff has also manipulated the column names to fit them with shapefile format, and a codebook and a has been included in the download package. A penal law codebook provided by NYC OpenData is also included.