of the keys to successful application of satellite remote sensing is to make
data and information readily accessible to agencies and the public. One of the
RESAC objectives is to develop easy to use Internet-based tools for delivery of
information products. The RESAC project has developed two MapServer applications
for accessing maps and statistics derived from classifications of lake water
clarity. MapServer is an open source Web mapping tool in which applications are
created by coding an HTML template file along with a MapServer configuration
file (see, http://mapserver.gis.umn.edu/).
Extensions include raster query and analysis and the ability to extract attribute
data from relational databases.
Users can view the satellite-derived lake clarity map of all of the lakes in the Twin Cites Metropolitan Area as well as the state of Minnesota, zoom in to smaller areas, or query the data base for information on particular lakes. The LakeBrowsers are linked to the Minnesota PCA/DNR's LakeFinder database for additional information such as lake perimeter, area, depth, water quality and clarity measurements, fish surveys, recreation opportunities, and topographic maps. The LakeBrowsers can be accessed using the links below. Additional areas and dates will be added to the LakeBrowser databases as classifications are completed.
Twin Cities Metro Area Lake Browser allows you to access the water clarity database we developed for the TCMA from Landsat images from 1973 to 2000 in a map format. Click on the graphic above to access the TCMA Lake Browser
Minnesota Statewide Lake Browser allows you to access our Minnesota statewide lake water clarity database of over 10,500 lakes for the early 1990's.
All Contents Copyright © 2001
Upper Great Lakes Regional Earth Science Applications Center
University of Minnesota • University of Wisconsin - Madison • Michigan State University
All rights reserved.
Last Modified August 9, 2001, Content and web layout by: Leif Olmanson
Webmaster for RESAC: < Kali Sawaya >