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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

March 9, 2023

####                 Stream temperature data for sites in the Potomac River headwaters during 2022              

Chesapeake Bay Activities, Eastern Ecological Science Center

March 7, 2023

####                 Lifespan of Chesapeake Bay salt marsh units              

Coastal and Marine Hazards and Resources Program, Chesapeake Bay Activities

January 9, 2023

####                 Motility of sperm from adult largemouth bass pond exposure to 17 alpha-ethinylestradiol or estrone-atrazine mixture (2018)              

Chesapeake Bay Activities, Wetland and Aquatic Research Center 

November 28, 2022

####                 Fish species abundance data for selected streams of the Potomac River basin              

Chesapeake Bay Activities, Eastern Ecological Science Center

November 25, 2022

####                 Water Chemistry and Smallmouth Bass Biological Data From the Potomac River, Dargan, Maryland, 2013-2019              

Chesapeake Bay Activities, Eastern Ecological Science Center

November 7, 2022

####                 Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay River Input Monitoring stations: Water years 1985-2021              

Chesapeake Bay Activities, Virginia and West Virginia Water Science Center

November 3, 2022

####                 Geospatial characterization of salt marshes in Chesapeake Bay              

Coastal and Marine Hazards and Resources Program, Chesapeake Bay Activities, Woods Hole Coastal and Marine Science Center

November 1, 2022

####                 Literature review results and regulatory summaries of freshwater stressors influencing biological impairment in the Chesapeake Bay watershed, USA              

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

September 26, 2022

####                 Priority Toxic Contaminant Metadata Inventory and Associated Total Polychlorinated Biphenyls Concentration Data              

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

September 14, 2022

####                 Estimated Nitrogen, Phosphorus, and Sediment Load Reductions from Best Management Practices in the Chesapeake Bay Watershed between 1985 and 2020              

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

August 29, 2022

####                 Characterization of the Impact of Agricultural Conservation Practices on Natural Resource Concerns in the Chesapeake Bay Watershed              

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

August 26, 2022

####                 Datasets and scripts used for estimating streamflow and base flow within the nontidal Chesapeake Bay riverine system, water years 2006-15              

Water Resources Mission Area, Chesapeake Bay Activities

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