Patterns of Diel Variation in Nitrate Concentrations in the Potomac River

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 accompany a paper titled "Patterns of Diel Variation in Nitrate Concentrations in the Potomac River", and details about further calculations and summaries based on these data are described in the manuscript.

Data and Resources

Field Value
accessLevel public
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identifier USGS:570b99fce4b0ef3b7ca0257d
metadata_type geospatial
modified 20200825
old-spatial -79.748442, 37.783658, -76.875158, 40.262728
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash e834d0dfe50ab526551d8009b5864a92e69c9b81
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spatial {"type": "Polygon", "coordinates": [[[-79.748442, 37.783658], [-79.748442, 40.262728], [ -76.875158, 40.262728], [ -76.875158, 37.783658], [-79.748442, 37.783658]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • chesapeake-bay
  • ckan
  • diel-variation
  • geo
  • geoss
  • in-stream-processes
  • national
  • nitrate
  • nitrogen
  • north-america
  • potomac-river
  • river
  • united-states
  • usgs-570b99fce4b0ef3b7ca0257d
isopen False
license_id notspecified
license_title License not specified
maintainer Douglas Burns
maintainer_email daburns@usgs.gov
metadata_created 2025-11-22T12:27:03.344003
metadata_modified 2025-11-22T12:27:03.344007
notes 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 accompany a paper titled "Patterns of Diel Variation in Nitrate Concentrations in the Potomac River", and details about further calculations and summaries based on these data are described in the manuscript.
num_resources 2
num_tags 16
title Patterns of Diel Variation in Nitrate Concentrations in the Potomac River