Geoscience Reference
In-Depth Information
because it is merely technology-driven (Sui and Maggio
1999
). Instead of being
dictated by GIS, hydrologic modeling development should be GIScience based
and there should be a coherent spatial-temporal framework consistent with both
GIS and hydrological models (Sui and Maggio
1999
).
GIS data sources may undergo some changes in the future. To this respect,
Seth et al. (
2006
), has proposed that national and regional level GIS repositories
need to be created which can be updated from time to time. These data repositories
have to be accessible at the local as well as at the national level. A central body at
the national level needs to be established to issue guidelines for local agencies to
standardize their GIS data and capabilities (Seth et al.
2006
). For example, State
and county level agencies managing GIS data such as Wisconsin Department of
Natural Resources (WDNR) and Southeastern Wisconsin Regional Planning Com-
mission (SEWRPC) should interact with United States Environmental Protection
Agency (USEPA) to make their GIS data more accessible (Seth et al.
2006
).
One should always keep in mind that a major hurdle in using GIS technology is
obtaining the right kind of data (Seth et al.
2006
) from the right source. GIS
files should always be compatible with updated data managing and processing
software.
References
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