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Used
for Scientific Study
The new NHD allows for advanced applications in Geographic Information
Systems (GIS) by creating a comprehensive hydrologic network so
that all surface water can be modeled to flow from the stream
headwaters to the rivers flowing out of the state. It is also
possible to directly link water information such as water chemistry,
flow rates, and fish habitat to this network to determine the
contributing upstream and affected downstream flow paths.
Linked to EPA Databases
Nationwide, the Environmental Protection Agency (EPA) has approximately
three million pieces of water quality information linked to the
medium resolution NHD. The newly completed high-resolution dataset
for Kentucky will give scientists a more detailed look at the
water resources in the state. The high resolution NHD is still
in production for the rest of the country, with Kentucky joining
Hawaii as the first states to be completed. The data is available
online at no cost through the
Kentucky Geography Network, the Governor's Office for Technology's
Office
of Geographic Information and USGS:
http://kygeonet.state.ky.us
http://ogis.ky.gov
http://nhd.usgs.gov/
For expanded definitions of the National Hydrography Dataset (NHD)
click here.
Contributing
writers: John Penfield (NREPC), Bruce
Bauch (USGS), Scott Render (GOT)
For
more information contact:
Scott Render
- (502) 564-8747
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| Stephen
Dooley (left) from the Governor's Office for Technology (GOT)
and John Penfield from the Natural Resources and Environmental
Protection Cabinet (NREPC) accept a plaque from Kari Craun
of the USGS in recognition of Kentucky's efforts. (Click to
enlarge) |
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