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  4. Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2023

Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2023

Dates

Publication Date
Start Date
1984-10-01
End Date
2023-05-31

Citation

Soroka, A.M., and Blomquist, J. D., 2024, Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2023: U.S. Geological Survey data release, https://doi.org/10.5066/P9LG66Z0.

Summary

Data release includes the U.S. Geological Survey (USGS) estimate of spring nitrogen fluxes summed from nine tributaries to the Chesapeake Bay from 1985 to 2023. Data are presented as the sum from tributaries within the USGS River Input Monitoring (RIM) network identified by site numbers: 01491000, 01578310, 01594440, 01646580, 01668000, 01673000, 01674500, 02035000, 02041650. Periods of estimation include January through May and November through May. The estimates are made using up-to-date streamflow and all total nitrogen analyses available as of June 1 of the reporting year.

Contacts

Point of Contact :
Joel D Blomquist
Originator :
Alexander M. Soroka, Joel D. Blomquist
Metadata Contact :
Alexander Soroka
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Maryland-Delaware-D.C. Water Science Center
USGS Mission Area :
Water Resources

Attached Files

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Metadata_HypoxiaRelease_1985_2023.xml
Original FGDC Metadata
View 		13.33 KB application/fgdc+xml
Jan_May_TN_total_2023.csv 811 Bytes text/csv
Nov_May_TN_total_2023.csv 811 Bytes text/csv

Purpose

Spring nitrogen fluxes are an effective indicator of summer hypoxic and anoxic volume in Chesapeake Bay. Existing models that forecast summer hypoxic volume utilize relationships between nitrogen fluxes delivered during two periods (November through May and January through May) to estimate mid-summer hypoxic and anoxic zones. The U.S. Geological Survey (USGS) provides an estimate of nitrogen flux for these two periods to support an annual forecast of summer Chesapeake Bay conditions.

Rights

This work is marked with Creative Commons Zero v1.0 Universal (https://creativecommons.org/publicdomain/zero/1.0/).

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  • USGS Data Release Products
  • USGS Maryland, Delaware, and the District of Columbia Water Science Center

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9LG66Z0

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