Skip to main content
  1. ScienceBase Catalog
  2. USGS Chesapeake Bay
  3. Communities
  4. WQ_Loads_Trends
  5. Nontidal_Network
  6. Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2014

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 [...]

Child Items (6)

Contacts

Point of Contact :
Douglas L Moyer
Originator :
Douglas L Moyer, Jeffrey G Chanat, Guoxiang Yang, Joel D Blomquist, Michael J Langland
Metadata Contact :
Douglas L Moyer
Distributor :
U.S. Geological Survey - ScienceBase
Publisher :
U.S. Geological Survey
USGS Mission Area :
Ecosystems
SDC Data Owner :
Virginia and West Virginia Water Science Center

Attached Files

Click on title to download individual files attached to this item.

NTN_1985-2014_Landing.xml
Original FGDC Metadata
View 		11.66 KB application/fgdc+xml
NTN Load and Trend Summary 2014 .pdf
“Summary of loads and trends in Chesapeake Bay watershed: 1985-2014” 		284.9 KB application/pdf
NTN2014_Tables_Figures.zip
“Maps of Load and Trend Results” 		32 MB application/zip
R-3.1.2-win.exe
“Source file for R version 3.1.2” 		54.29 MB application/x-msdownload
EGRET_2.1.5.tar.gz
“Source file for EGRET (contains WRTDS) version 2.1.5 for running loads” 		2.84 MB application/x-gzip
EGRETci_0.0.5.tar.gz
“Source file for EGRETci for computing trends” 		125.06 KB application/x-gzip

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).

Map

Map Preview

Spatial Services

ScienceBase WMS

Communities

  • USGS Chesapeake Bay

Tags

Provenance

Data source
Input directly

Additional Information

Identifiers

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

Item Actions

View Item as ...

JSON ATOM ISO XML

Save Item as ...

JSON FGDC MODS XML ISO XML

View Item...

Metrics