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  4. Input data and results of WRTDS models and seasonal rank-sum tests to determine trends in the quality of water in New Jersey streams, water years 1971-2011

Input data and results of WRTDS models and seasonal rank-sum tests to determine trends in the quality of water in New Jersey streams, water years 1971-2011

Dates

Publication Date
Start Date
1970-10-01
End Date
2011-09-30

Citation

Hickman, R.E., 2017, Input data and results of WRTDS models and seasonal rank-sum tests to determine trends in the quality of water in New Jersey streams, water years 1971-2011: U.S. Geological Survey data release, https://doi.org/10.5066/F7NS0RZ3.

Summary

This USGS data release represents the input data used to identify trends in New Jersey streams, water years 1971-2011 and the results of Weighted Regression on Time, Discharge, and Season (WRTDS) models and seasonal rank-sum tests. The data set consists of CSV tables and Excel workbooks of: • trends_InputData_NJ_1971_2011: Reviewed water-quality values and qualifiers at selected stream stations in New Jersey over water years 1971-2011 • trends_WRTDS_AnnualValues_NJ_1971_2011: Annual concentrations and fluxes for each water-quality characteristic at each station from WRTDS models • trends_WRTDS_Changes_NJ_1971_2011: Changes and trends in flow-normalized concentrations and fluxes determined from WRTDS models • trends_SeasonalRankSum_results_NJ_1971_2011: [...]

Contacts

Point of Contact :
Robert R. Reiser
Originator :
R. Edward Hickman
Metadata Contact :
Jessica A. Hopple
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Water Resources
SDC Data Owner :
New Jersey Water Science Center

Attached Files

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

Trends_in_the_quality_of_water_NJ_streams_1971_2011.xml
“Metadata file”
Original FGDC Metadata
View 		60.01 KB application/fgdc+xml
trends_InputData_NJ_1971_2011.csv
“Input data used to identify trends in csv format” 		973.38 KB text/csv
trends_InputData_NJ_1971_2011.xlsx
“Input data used to identify trends in Excel format” 		808.88 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
trends_seasonal_rank_sum_test_results.csv
“Results of seasonal rank-sum tests to identify step trends in csv format” 		39.33 KB text/csv
trends_seasonal_rank_sum_test_results.xlsx
“Results of seasonal rank-sum tests to identify step trends in Excel format” 		32.77 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
trends_WRTDS_AnnualValues_NJ_1971_2011.csv
“Annual values of concentrations and fluxes in csv format” 		114.38 KB text/csv
trends_WRTDS_AnnualValues_NJ_1971_2011.xlsx
“Annual values of concentrations and fluxes in Excel format” 		149.02 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
trends_WRTDS_Changes_NJ_1971_2011.csv
“Changes in flow-normalized annual concentrations and fluxes in csv format” 		70.4 KB text/csv
trends_WRTDS_Changes_NJ_1971_2011.xlsx
“Changes in flow-normalized annual concentrations and fluxes in Excel format” 		75.85 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Purpose

The data set from which trends in water quality were identified is being archived so that the public can easily examine the data. Detailed results of each trend test are being archived to allow the public to identify the level of significance and amount of change associated with each trend. Results from WRTDS (Weighted Regressions on Time, Discharge, and Season) models include values of flow-normalized concentration and flow-normalized fluxes for each water year of the period of analysis.

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Communities

  • USGS Data Release Products
  • USGS New Jersey Water Science Center 

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Provenance

Data source
Input directly

Additional Information

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Identifiers

Type Scheme Key
doi https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F7NS0RZ3

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