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Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2014

Dates

Publication Date
Start Date
1985-10-01
End Date
2014-09-30

Citation

Moyer, D.L., Chanat, J.G., Yang, Guoxiang, Blomquist, J.D., and Langland, M.J., 2017, Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2014: U.S. Geological Survey data release, https://doi.org/10.5066/F7XK8D2R.

Summary

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2014. 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). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the NTN watersheds. To determine the trend in loads, the annual load results are flow normalized to integrate out the year-to-year variability in river discharge. The trend in load is [...]

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Attached Files

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NTN Load and Trend Summary 2014 .pdf
“Summary of loads and trends in Chesapeake Bay watershed: 1985-2014”
284.9 KB
NTN2014_Tables_Figures.zip
“Maps of Load and Trend Results”
32 MB
R-3.1.2-win.exe
“Source file for R version 3.1.2”
54.29 MB
EGRET_2.1.5.tar.gz
“Source file for EGRET (contains WRTDS) version 2.1.5 for running loads”
2.84 MB
EGRETci_0.0.5.tar.gz
“Source file for EGRETci for computing trends”
125.06 KB
NTN_1985-2014_Landing.xml
Original FGDC Metadata

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11.52 KB

Purpose

The purpose of this data release is to provide datasets for 1985-2014 (1) Annual Loads, (2) Monthly Loads, (3) Long- (1985-2014) and Short- (2005-2014) Term Trends, and (4) Average Yields (2005-2014).

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ScienceBase WMS

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  • USGS Chesapeake Bay

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F7XK8D2R

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