Chesapeake Bay River Input Monitoring Network 1985-2018: Average annual yields
Dates
Publication Date
2019-07-26
Start Date
1984-10-01
End Date
2018-09-30
Citation
Moyer, D.L. and Blomquist, J.D., 2019, Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay River Input Monitoring stations: Water years 1985-2018: U.S. Geological Survey data release, https://doi.org/10.5066/P9P4H3ZX.
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 Network (RIM) stations for the period 1985 through 2018. 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 (represents 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 Network (RIM) stations for the period 1985 through 2018. 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 (represents 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: 2009-2018 (10 year average yield) and 2014-2018 (5 year average yield).
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RIM_2008-2018_Yields.xml Original FGDC Metadata
View
12.59 KB
application/fgdc+xml
RIM_2018_YieldTable.csv “RIM 5yr and 10yr Average Yields ”
9.15 KB
text/csv
Purpose
The purpose of this data set is to communicate the average annual loads of nitrogen, phosphorus, and suspended-sediment being generated across the nontidal portion of the major rivers in the bay watershed for tow possible periods 2009-2018 and 2014-2018. The loads have been normalized by respective watershed drainage area to generate per acre loads (that is yields).
