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The USGS collects multiple types of data in the Chesapeake Bay watershed. The Data Catalog contains a list and links of all the types of Chesapeake information from USGS. Some of the most relevant data related to streams and rivers is highlighted in the “tracking status and trends indicators of stream health”. Land cover, use, and change data are also highlighted.

USGS Chesapeake Bay Studies - Data Catalog

### New High-Resolution, Land-Use and Change Data Improves Decision-Making

With support from the CBP, the USGS, Chesapeake Conservancy and the University of Vermont developed an improved 1-meter resolution land use/land cover (LULC) data set for the Chesapeake Bay watershed.

Read more

### Freshwater Flow into Chesapeake Bay

The USGS provides estimates of the monthly and annual amounts of freshwater flow into the Bay so scientists and managers can better understand effects on ecosystem conditions.

View data

### Tracking Status and Trends in Seven Key Indicators of Stream Health

Identifying and tracking the status of, and trends in, stream health within the Chesapeake Bay watershed is essential to understanding the past, present, and future trajectory of the watershed’s resources and ecological condition.

Learn more

April 17, 2024

####                 Chesapeake Bay Watershed 1:24k 10, 30 and 90-meter Riparian Buffer Zones              

Chesapeake Bay Activities, Lower Mississippi-Gulf Water Science Center

March 26, 2024

####                 Attribution of stream habitat assessment data to NHDPlus V2 and NHDPlus HR catchments within the Chesapeake Bay Watershed              

This data release links habitat assessment sites to both the NHDPlus Version 2 and NHDPlus High Resolution Region 02 networks using the hydrolink methodology. Linked habitat sites are those compiled by the Interstate Commission on the Potomac River Basin (ICPRB) during creation of the Chesapeake Bay Basin-wide Index of Biotic Integrity (Chessie BIBI) for benthic macroinvertebrates (https://datahub

Chesapeake Bay Activities, Eastern Ecological Science Center

March 26, 2024

####                 Data describing the use of retention ponds on commercial poultry facilities on Delmarva by wild waterfowl              

Chesapeake Bay Activities, Eastern Ecological Science Center

March 18, 2024

####                 Fish communities in PA and MD Piedmont mixed agricultural streams, 2023              

Chesapeake Bay Activities, Florence Bascom Geoscience Center

March 1, 2024

####                 Attribution of fish sampling data to NHDPlus HR catchments within the Chesapeake Bay Watershed              

Chesapeake Bay Activities, Eastern Ecological Science Center

February 15, 2024

####                 Discharge measurements, air temperature, water temperature, and gage height data for select stream monitoring locations across Delmarva Peninsula (2022)              

Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center

January 18, 2024

####                 Data for Statewide Reconnaissance of Per- and Polyfluoroalkyl Substances in Rivers and Streams of Virginia, 2022-2023              

Chesapeake Bay Activities, Virginia and West Virginia Water Science Center

October 3, 2023

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

Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center

September 21, 2023

####                 Biological Indicators and Mercury Concentrations in Smallmouth Bass              

Chesapeake Bay Activities, Eastern Ecological Science Center

August 21, 2023

####                 Depth grids for floodplain flood attenuation baseline and counterfactual scenarios in the Schuylkill River watershed, Pennsylvania              

Chesapeake Bay Activities, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC)

August 1, 2023

####                 “ChesBay 24k – LU": Land Use/Land Cover Related Data Summaries for the Chesapeake Bay Watershed Within NHD Plus HR catchments              

Chesapeake Bay Activities, Eastern Ecological Science Center

August 1, 2023

####                 “ChesBay 24k – NE": Natural Environment Related Data Summaries for the Chesapeake Bay Watershed Within NHD Plus HR catchments              

Chesapeake Bay Activities, Eastern Ecological Science Center

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