Chesapeake Bay River Input Monitoring Network 1985-2023: Average annual yields
Dates
Publication Date
2024-05-30
Start Date
1984-10-01
End Date
2023-09-30
Citation
Mason, C.A., and Soroka, A.M., 2024, Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay River Input Monitoring stations: Water years 1985-2023: U.S. Geological Survey data release, https://doi.org/10.5066/P13QLXFP.
Summary
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring (RIM) Network stations for the period 1985 through 2023. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). Yields (representing the mass of constituent transported from a unit area of a given watershed) are used to compare the export loads from one basin to another. Yield results are obtained by dividing the annual load (pounds) of a given constituent by the respective watershed area (acres) [...]
Summary
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring (RIM) Network stations for the period 1985 through 2023. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). Yields (representing the mass of constituent transported from a unit area of a given watershed) are used to compare the export loads from one basin to another. Yield results are obtained by dividing the annual load (pounds) of a given constituent by the respective watershed area (acres) from which the constituent was transported. Yield results presented represent the average annual per-acre loads of nitrogen, phosphorus, and suspended sediment exported from each of the Chesapeake Bay River Input Monitoring stations for two possible time periods: 2014-2023 (10 year average yield) and 2019-2023 (5 year average yield).
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RIM_2012-2023_Yields.xml Original FGDC Metadata
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RIM_2023_YieldsTable.csv
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Purpose
The purpose of this data set is to communicate the average annual per-acre loads of nitrogen, phosphorus, and suspended sediment being transported by the nontidal portion of the major rivers in the bay watershed for two possible periods 2014-2023 and 2019-2023. The loads have been normalized by respective watershed drainage area to generate per-acre loads (or yields).