Basin characteristics data for the Washington, D.C. StreamStats application

This data was created to support the Washington D.C. StreamStats project funded by the Washington D.C. Department of Energy and Environment (DOEE). The data release contains high-resolution (1-meter) land cover data layers for Washington D.C. and its tributaries that represent canopy cover, canopy cover with building and road coverage removed (“pervious canopy”), impervious cover, slope (in units of percent rise), and 30-year normal annual precipitation (1991-2020). The data are hosted online as a component of the USGS StreamStats web application (https://streamstats.usgs.gov), where users can interact with a map of Washington D.C.’s stormwater pipe system and delineate drainage basins that account for pipe flow. For drainage basins delineated in Washington D.C., the user can choose to produce a report of basin characteristic statistics.

The contents of this data release includes the following GeoTiffs:
•tc_all.tif: 1-meter tree canopy layer derived from the Chesapeake Bay Program’s (CBP) Chesapeake Bay Land Use and Land Cover (LULC) Database 2022 Edition for 2017 (CBP, 2023).
•tc_p.tif: 1-meter “pervious” tree canopy layer that represents canopy with canopy over buildings and impervious extents removed. This data is derived from the Chesapeake Bay Program’s Chesapeake Bay Land Use and Land Cover (LULC) Database 2022 Edition for 2017 (CBP,2023).
•imperv.tif: 1-meter impervious surface layer derived from the Chesapeake Bay Program’s Chesapeake Bay Land Use and Land Cover (LULC) Database 2022 Edition for 2017 (CBP, 2023).
•precip.tif: 800-meter resolution 30-year normal (1991-2020) annual precipitation collected from the PRISM Climate Group at Oregon State University (PRISM CG, 2022).
•slp_pctr.tif: 1-meter resolution slope layer in units of percent rise derived from 2018 LiDAR digitial elevation models (DEMs) for Washington D.C. and its tributaries (6 HUC-12 watersheds: NW Branch Anacostia, Lower Rock Creek, Nichols Run Potomac River, Lower Anacostia River, Pimmit Run- Potomac River, and Fourmile Run- Potomac River; Katoski and others, 2023)

References:
Chesapeake Bay Program, 2023, Chesapeake Bay Land Use and Land Cover (LULC) Database 2022 Edition: U.S. Geological Survey data release, https://doi.org/10.5066/P981GV1L.

Katoski, M.P., Steeves, P.A., Onyullo, G.E., 2023, Digital elevation model and derivative datasets to support the integration of stormwater drainage into the Washington, D.C. Stormwater StreamStats application: U.S. Geological Survey data release, https://doi.org/10.5066/P9AJLI3I.

PRISM Climate Group, Oregon State University, 2022, United States Annual 30-year Normal Precipitation, 1991-2020 (800m; BIL), https://prism.oregonstate.edu.