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| MD-DE-DC Water Science Center |
U.S. GEOLOGICAL SURVEY
Open-File Report 99-213
The Gwynns Falls watershed has been selected as the primary study area for the Baltimore Ecosystem Study, as part of the National Science Foundation’s Long-Term Ecological Research program. Because the Baltimore Ecosystem Study will be investigating long-term hydrologic changes in the Gwynns Falls watershed, a compilation of existing data resources for the watershed is necessary.
This report discusses hydrologic characteristics and presents a compilation of historical data resources for the Gwynns Falls watershed. Tables are presented that list active and discontinued continuous-record streamflow-gaging stations, nontidal crest-stage partialrecord stations, low-flow partial-record stations, and water-quality partial-record stations operated by the U.S. Geological Survey, Maryland-Delaware-D. C. District, in the Gwynns Falls watershed. Statistics regarding the number of inventoried ground-water wells in or bordering the Gwynns Falls watershed also are presented. A summary of additional data resources for the Gwynns Falls watershed is provided. This includes (1) an inventory of selected U.S. Geological Survey studies and reports that contain historical data or basin characteristics for streams in the watershed, (2) a listing of indirect flood-discharge measurements that have been made at several monitoring stations in the watershed, (3) a brief discussion of channel-stability and bridge-scour data collected by the U.S. Geological Survey in the watershed during 1990–95, (4) a listing of climatological data stations in the watershed and in the surrounding regional area, and (5) a listing of other selected reports that include data or information on the Gwynns Falls watershed.
Abstract
Introduction
Hydrologic characteristics
Monitoring stations operated by the U.S. Geological Survey in the Gwynns Falls watershed
Continuous-record streamflow-gaging stations
Nontidal crest-stage partial-record stations
Low-flow partial-record stations
Water-quality partial-record stations
Ground-water wells
Additional information and data resources
U.S. Geological Survey annual water-resources data reports
Selected U.S. Geological Survey reports and papers
Indirect flood-discharge measurements
Channel-stability and bridge-scour data
Climatological data
Other selected reports
Summary
References cited
1. Map showing location of Gwynns Falls watershed and approximate boundaries of seventeen subwatersheds
2. Hydrograph of daily-mean discharge for station 01589300, Gwynns Falls at Villa Nova, Md., water year 1998
3. Map showing types and locations of monitoring stations operated by the U.S. Geological Survey in the Gwynns Falls watershed
4. Map showing locations of climatological data-collection stations in the Gwynns Falls watershed and surrounding regional area
1. Percentages of major land-use types in the Gwynns Falls watershed, 1970–90
2. Active and discontinued continuous-record streamflow-gaging stations in the Gwynns Falls watershed
3. Discontinued nontidal crest-stage partial-record stations in the Gwynns Falls watershed.
4. Discontinued low-flow partial-record stations in the Gwynns Falls watershed
5. Discontinued surface-water-quality partial-record stations in the Gwynns Falls watershed
6. Approximate number of ground-water wells in the Gwynns Falls watershed, on the watershed boundary, or just outside the watershed
7. Climatological data-collection stations for the Gwynns Falls watershed and surrounding regional area
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View the OFR 99-213 report in PDF (1.9 MB)
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For more information about USGS activities in Maryland, Delaware and the District of Columbia contact:
Director
MD-DE-DC Water Science Center
U.S. Geological Survey
8987 Yellow Brick Road
Baltimore, MD 21237
Telephone: (410) 238-4200
or access the USGS Water Resources of Maryland, Delaware, and District of Columbia home page at: http://md.water.usgs.gov/.
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