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Nutrient, Bacteria, Ammonia, & TSS Annual Loads; Green & Gray Infrastructure; Land Cover Change; and Climate Data in the Gwynns Falls Subwatersheds, Baltimore, MD, 1998-2016

Metadata Updated: October 29, 2023

This metadata record document contains 7 tables used to assess factors influencing long-term water quality changes in the Gwynns Falls, Baltimore, MD, 1998-2016. Included are daily discharge measurements (source: United States Geological Survey (USGS), 2016), weekly nutrient sampling concentrations (source: Baltimore Ecosystem Study (BES), 2015), and approximately monthly bacteria, ammonia, TKN, and TSS sampling concentrations (source: Baltimore City Department of Public Works (DPW), 2016; Baltimore County Department of Environmental Protection and Sustainability (DEPS), 2016). Annual loads were calculated for each Gwynns Falls subwatershed from the discharge measurements and sampling concentrations. Green infrastructure data (Best Management Practices (BMPs), rain barrels) and gray infrastructure data (Sanitary Sewer Overflows (SSOs), sewer repairs, water main breaks & leaks) were obtained from Baltimore City DPW and Baltimore County DEPS and summarized annually for each Gwynns Falls subwatershed. Land cover change data (source: National Land Cover Dataset (NLCD), 2011 and 2015) was created for each Gwynns Falls subwatershed over the time period of 2001-2011. Regional climate data (source: National Oceanic and Atmospheric Administration (NOAA), 2016) was obtained from the Baltimore Washington International (BWI) Airport meteorological station.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Identifier USGS:5a2055afe4b09fc93ddbae6f
Data Last Modified 20200821
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 32c3ba81-1e16-438e-b27a-43dc28afb41d
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -76.8968142073,39.1947287054,-76.3253539872,39.7219355735
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash a8b2d1c26a29f7c684ec773333a7a9b415eb143f23784d9c97d866bb0450e4a8
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -76.8968142073, 39.1947287054, -76.8968142073, 39.7219355735, -76.3253539872, 39.7219355735, -76.3253539872, 39.1947287054, -76.8968142073, 39.1947287054}

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