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South Fork Discharge Data

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Type: Resource
Storage: The size of this resource is 25.4 MB
Created: Jun 15, 2021 at 7:09 p.m.
Last updated: Jun 15, 2021 at 8:45 p.m.
DOI: 10.4211/hs.a22182704dcb42b2baf36c7400a2921c
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Content types: Geographic Feature Content 
Sharing Status: Published
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Field measurements of discharge and stream channel bathymetry are provided from near the abutment of the former South Fork Dam (breached in 1889 causing the Johnstown Flood of 1889). This, combined with 15-minute stream stage data (HOBO logger) helped in the establishment of a new stream gage (and stream rating curve over the period of study) in Johnstown Flood National Memorial in the South Fork of the Little Conemaugh River, Cambria County, PA, USA. Logger data from the South Fork are made available here.

Using Stage IV Precipitation Data from UCAR extracted for the Little Conemaugh and South Fork basins via R (example provided for April 17 for the Little Conemaugh) and stream gage data from East Conemaugh (via USGS; station 03041000), unit hydrographs (optimized via a merit function for peak discharge) were established for storms exceeding 8 hours in duration. These unit hydrographs were then convolved with design storms to probe possible peak discharges in the Little Conemaugh watershed and the South Fork sub-basin. Unit hydrographs and design storm analyses are provided here.

Subject Keywords



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
South Fork (old abutment, near former control tower)


Data Services

The following web services are available for data contained in this resource. Geospatial Feature and Raster data are made available via Open Geospatial Consortium Web Services. The provided links can be copied and pasted into GIS software to access these data. Multidimensional NetCDF data are made available via a THREDDS Data Server using remote data access protocols such as OPeNDAP. Other data services may be made available in the future to support additional data types.

Related Resources

The content of this resource is derived from Stage IV Precipitation Data: Du, J., 2011. GCIP/EOP Surface: Precipitation NCEP/EMC 4KM Gridded Data (GRIB) Stage IV Data. Version 1.0. UCAR/NCAR – Earth Observing Laboratory.
The content of this resource is derived from East Conemaugh Stream Gage Data: USGS (U.S. Geological Survey), 2021. National Water Information System data available on the World Wide Web (USGS Water Data for the Nation).



People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name Organization Address Phone Author Identifiers
Neil Coleman University of Pittsburgh-Johnstown
Anthony Taylor University of Pittsburgh-Johnstown

How to Cite

Coughenour, C. (2021). South Fork Discharge Data, HydroShare,

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