Abstract

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Building a Repository to Share Hydrologic-Related Geospatial Data
Track: Water Resources
Author(s): Mark Olsen, Susanne Maeder

Minnesota's Pollution Control Agency and Land Management Information Center are working cooperatively with the USEPA to develop the systems and methodologies necessary to support hydrologic-related geospatial data flows via the National Environmental Information Exchange Network. A common repository will be developed for features and activities (events) that are geographically referenced to Minnesota's 1:24,000 NHD data. The Exchange Network will be used as the mechanism for sharing these data, using an XML schema consistent with the FGDC's Hydrographic Data Content Standard. This system will also serve to manage updates and enhancements to Minnesota's 1:24,000 NHD data. This allows Minnesota to coordinate and consolidate updates through a single process and authority. Events can then be modified to ensure they are referenced to a consistent source. Finally, this system will serve as the mechanism through which local changes to the NHD are sent to USGS for integration into the national NHD repository.

Mark Olsen
MN Pollution Control Agency
520 Lafayette Rd N.
St. Paul , MN 55155
US
Phone: 651.296.3412
E-mail: mark.olsen@pca.state.mn.us

Susanne Maeder
MN Land Management Information Center
658 Cedar St., Suite 300
St. Paul , MN 55155
US
Phone: 651.296.4986
E-mail: susanne.maeder@state.mn.us

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