Information System (GIS) Tools for Watershed Management
GIS Tools for analysis of hydrology and water
quality, developed by Dr. Bernie Engel and his graduate students and staff.
watershed delineation: This tool will calculate the watershed area
draining into a point that you have selected on an interactive map. It is
available for the 6 states in EPA Region 5 (Indiana, Illinois, Wisconsin,
Minnesota, Michigan, Ohio). Once you have obtained
a watershed using the watershed delineator tool you can: estimate impervious
area of your watershed, run L-THIA, or download the data to your computer.
Hydrologic Impact Assessment (L-THIA), an online tool to assess the
water quality impacts of land use change.
for designing runoff and erosion control structures, based on event-based
Hydrograph Analysis Tool (WHAT),
which separates hydrographs into runoff and base flow. This page also provides
a way to select USGS gauging stations using an interactive map, and calculate
statistics of model simulations.
National Agricultural Pesticide Risk Analysis (NAPRA).
Online estimates of pesticide and nutrient runoff and ground water leaching,
using the GLEAMS model and crop management inputs.
More tools are available at the Web site of the Midwest
Partnership for Watershed Management Decision Support Systems. The goal
of this site, which is sponsored by EPA Region 5 and land-grant universities is to develop, promote, and disseminate web-based
spatial decision support systems to help manage watersheds in the Midwest.
Indiana GIS Data
GIS Atlas for Indiana, from Indiana Geological Survey
Center for Advanced Applications of GIS data download site
Data Portal: Data storage and retrieval of Indiana GIS data, from Indiana
GIS Atlas CD-ROMs. More than 50 Indiana GIS layers, clipped to
the county with a 3-mile buffer from Purdue University. The CDs are available
for purchase for $9 each and provide an easy way to access available data
in a uniform projection system.
Indiana Digital Orthophotos from 1998-9 on CD-ROM from Purdue University.
for specific ordering information.
National GIS Data
You can also access Indiana GIS data through national GIS data servers. Two
excellent ones are:
The National Map is an interactive map
service, produced by a consortium of Federal, State, and local partners who
provide geospatial data to enhance America's ability to access, integrate,
and apply geospatial data.
Geodata.gov is part of the Geospatial One-Stop E-Gov initiative providing access to geospatial
data and information.