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Patterns of Diel Variation in Nitrate Concentrations in the Potomac River


Publication Date
Start Date
End Date


Burns, D.A., 2016, Patterns of Diel Variation in Nitrate Concentrations in the Potomac River: U.S. Geological Survey data release,


This data set includes nitrate concentration, water temperature, and discharge collected every 15 minutes during Dec. 2011 - Nov. 2013 from the USGS gage at the Potomac River near Wash, DC, Little Falls Pump Sta (01646500). Additional data includes day length from the US Naval Observatory, and photosynthetically active radiation from USDA research station in Beltsville, MD. Data on channel width and velocity based on manual discharge measurements made at the USGS gage at the Potomac River at Point of Rocks, MD (01638500) are included and were applied to calculate diel nitrate loss rates. Several calculations derived from these data are included in the data set. These data support the following publication: Burns, D.A., Miller, M.A., [...]


Point of Contact :
Douglas Burns
Originator :
Douglas A. Burns
Metadata Contact :
Douglas Burns
Publisher :
U.S. Geological Survey
Distributor :
USGS Mission Area :
Water Resources
SDC Data Owner :
New York Water Science Center

Attached Files

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“Metadata ”
Original FGDC Metadata

16.42 KB application/fgdc+xml
Potomac Nitrate Loss Rates.csv
“Data File”
60.66 KB text/csv
Total In-Stream Nitrate Loss.csv
“Data File”
30.46 KB text/csv
Fifteen Minute Nitrate Calculations.csv
“Data FIle”
8.18 MB text/csv
Point of Rocks Manual Discharge Data.csv
“Data File”
24.76 KB text/csv
Little Falls Hydrograph Separation Results.csv
“Data File”
27.7 KB text/csv
Little Falls Day Length Data Set.csv
“Data File”
26.32 KB text/csv
Beltsville USDA PAR Data Set.csv
“Data File”
1.65 MB text/csv
Little Falls After Days Removed Data Set.csv
“Data File”
2.4 MB text/csv
Little Falls Post-QA-QC Data Set.csv
“Data File”
3.27 MB text/csv
Little Falls Final NWIS Data.csv
“Data File”
4.43 MB text/csv


Data were obtained and calculations were made to estimate nitrate losses associated with diel variation in nitrate concentrations in the Potomac River.



  • Integrated Watershed Studies Team
  • National Water-Quality Assessment Project



Data source
Input directly

Additional Information


Type Scheme Key
DOI doi:10.5066/F7HT2MD4

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