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This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.
Publication Date: June 2022
This file contains 2021 parcel centroid data for all New York State Counties. Parcel centroids were generated using the NYS Office of Information Technology Services GIS Program Office's (GPO) Statewide Parcel Map program data. Attribute values were populated using 2021 Assessment Roll tabular data the GPO obtained from the NYS Department of Tax and Finance’s Office of Real Property Tax Services (ORPTS). Detailed information about assessment attributes can be found in the ORPTS Assessor’s Manuals available here: https://www.tax.ny.gov/research/property/assess/manuals/assersmanual.htm. New York City parcel data comes from NYC MapPluto (https://www1.nyc.gov/site/planning/data-maps/open-data/dwn-pluto-mappluto.page)
The data contained in the file is an extract of the information provided on the New York State Department of Transportation Traffic Data Viewer. The information is a combination of Traffic Count Station attributes and count statistics for the 2019 year and is displayed as line segments on the roads. Both directional and full roadway data is in the file. This file contains the Annual Average Daily Traffic values as calculated by the New York State Department of Transportation Traffic Monitoring Section for 2019.
For more information about the data visit:
https://www.dot.ny.gov/divisions/engineering/technical-services/highway-data-services/hdsb