This dataset presents the French Creek watershed as taken from State wide coverage of Pennsylvanis small watersheds. French Creek is one of three subwatersheds in the Delaware River Basin that CEMRI is sampling and doing extensive research.
Educational
publication date
None.
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Conforms to National Mapping Program Geospatial Data Standards. Attribute accuracy has been checked by visual comparision against source materials and peer review at USGS and ERRI.
Verified visually. Conforms to National Mapping Program Geospatial Data Standards.
Verified against source materials
Conforms to National Mapping Program Geospatial Data Standards. Data compiled from sources conforming to Naitonla Map Accuracy Standards. Checked visually against source materials
digital data cut by major basin
Enhanced source maps were digitized
Provided basin boundary information
In 1991, USGS Water Resources Division delineated drainage basin boundaries onto 7.5 topos for streams and hollows recognized by the Board on Geographic Names as depicted in the Gazeteer of streams. These were digitized to produce the Digital drainage basin boundaries
Digital drainage basin boundaries were cut by major basin for Pennsylvania. These individual coverages were combined, edgematched and reprojected to Albers.
French Creek watershed was pulled from the Statewide coverage and reprojected
Internal feature number.
ESRI
Feature geometry.
ESRI
Internal node number for the beginning of an arc (from-node).
ESRI
Internal node number for the end of an arc (to-node).
ESRI
Internal node number for the left polygon.
ESRI
Internal node number for the right polygon.
ESRI
Length of feature in internal units.
ESRI
Internal feature number.
ESRI
User-defined feature number.
ESRI
Internal feature number.
ESRI
Feature geometry.
ESRI
Area of feature in internal units squared.
ESRI
Perimeter of feature in internal units.
ESRI
Internal feature number.
ESRI
User-defined feature number.
ESRI
Pennsylvania watersheds info table includes,
WRDS# - stream code number of the Water Resources Data System database for PaDEP.
The code is a 5 digit integer between 00000 and 99999. For example,
the WRDS# 00833 is the Schuylkill River. This code is used by PaDEP
bureau databases to reference named streams for any activity related
to streams, e.g. water-quality sampling, water-use surface-water withdrawals.
Codes can be found in the Pennsylvania Gazetteer of Streams.
Heirlevel - DEP identification of location stream in watershed waterway.
1-11 are possible values, the lower the value the larger the drainage area
for the stream.
Heircode - DEP coding of relative location of the stream in the overall stream network
of the watershed. The 15 digit number indicates the primary watershed and all
drainage basins that the stream flows through. Both heirlevel and heircode are
subject to changes as edits are made to the DEP stream files.
HUC - USGS hydrologic unit code number and is defined as a numeric value with an input
and output of eight. This attribute has been approved for use by all Federal
agencies as a Federal Information Processing Standard (FIPS). The 8-digit HUC
number has four specific codes within it: region, subregion, accounting unit,
and cataloging unit. For example, the HUC number 02040106 is translated as:
02 = Mid Atlantic region,
04 = Delaware River Basin subregion,
03 = Upper Delaware accounting unit, and
04 = Lehigh River cataloging unit.
By name, this example HUC is all drainage basins in the Lehigh River
drainage basin. Source of HUC codes is U.S.G.S. water supply-paper 2294
Pennsylvania Department of Environmental Resources & U.S. Geological Survey. 1989. Pennsylvania gazetteer of streams, Pa. D.E.R. 323 p. Seaber, Paul R. 1987. Hydrologic unit maps. U.S. Geological Survey. Water supply-paper 2294. 63 p. Note that Pa. DEP and ERRI are working on an update to the stream codes.
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Although these data have been processed successfully on a computer system at the U.S. Forest Service, no warranty expressed or implied is made by the USFS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.