Michigan Water Science Center
CURRENT CONDITIONSCurrent streamflow conditions in Michigan.
Detailed streamflow map.
USGS in Your State
USGS Water Science Centers are located in each state.
Predicting Water Clarity Overview
Lake Water-Clarity Assessment for Michigan Inland Lakes
The U.S. Geological Survey (USGS), in cooperation with the Michigan Department of Environmental Quality (MDEQ), has been monitoring the quality of inland lakes in Michigan through the Lake Water Quality Assessment monitoring program. This program is funded through the Michigan Clean Michigan Initiative, and the USGS Cooperative Program. However, only a portion of Michigan's inland lakes can be conventionally sampled each year. A technique was developed by USGS, modeled after Olmanson and others (2001), to predict water clarity and corresponding trophic state index (TSI) values based on the Carlson's Trophic State Index (TSI) in inland lakes greater than 20 acres using satellite remote sensing data.
Remote Sensing - Reports/Fact Sheets
Downloadable Data - MetaData
We are interested to learn how the predicted water-quality data is being used. Please contact Lori Fuller at firstname.lastname@example.org with your information and project.
Data is available for download in shapefile format with metadata:
Precited Trophic State index based on Secchi-disk transparency
Shapefiles of the distributions are contained in a ZIP file (.ZIP). Microsoft® Windows® XP and Windows® 7 have a built-in programs that allows a file or folder to be compressed or uncompressed. You can also use WinZip®, PKZip®, or similar program to extract in Microsoft® Windows®; use Stuffit Expander™ or similar to unzip on Macintosh; Use UnZip or similar program to extract on UNIX® computers.
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Remote Sensing - Links
Remote Sensing of Water Resources — University of Minnesotahttp://water.umn.edu/index.html
LakeSat.org — Mapping Lake Clarity: About the Maphttp://www.lakesat.org/maptext1.php
LakeSat.org — Lake Water Clarity Monitoring and Analysis With Satellite Remote Sensing at the University of Wisconsin-Madisonhttp://www.lakesat.org/
Wisconsin Department of Natural Resources — Self-Help Citizen Lake Monitoring Networkhttp://dnr.wi.gov/lakes/CLMN/
Michigan Surface Water Information Management System (MiSWIMS)