Wyoming Headwaters Project
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The purpose of the Wyoming Headwaters Project is to refine existing USGS
Hydrologic Unit Boundaries (HUBs) published in the mid 1970's on a national
level (level 4 HUBs). 5th and 6th level hydrologic unit HUBs for the State will
be defined at a 1:24,000-scale. Boundaries will be defined using the USGS
Interagency Guideline on Delineation of Watershed and Subwatershed Hydrologic
Unit Boundaries . 5th level HUBs (watersheds) will be between 40,000 and
250,000 acres and 6th level HUBs (sub-watersheds) will be between 10,000 and
40,000 acres.
The delineation will be conducted using ArcView GIS and Arc/Info GIS. In Phase
1 draft delineations at the 1:100,000-scale will be reviewed by HUB workgroups
composed of interested parties working with the HUB technical committee (see
contacts below). Coordination will also take place between neighboring states
to ensure that watersheds are consistent over state boundaries. In Phase II,
final delineations will be made at the 1:24,000-scale. Both the workgroups and
the HUB technical committee will review the delineations. Once the final
changes are completed the Wyoming Natural Resources Data Clearinghouse will
become the repository for the watershed data.
[Summary provided by WYGISC.]
提供机构：
SCIOPS
