4 Monitoring Environmental Properties of Large Lakes
Thursday, 20 April 2006
8:00 AM - 11:40 AM
USING LANDSAT-7 & MODIS DATA FOR MEASURING SUSPENDED SEDIMENT IN LAKE ERIE
Paper number: 4-6
Program: THEME SESSIONS
Time: 9:40 AM – 10:00 AM
Authors
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Li ZhangThe Ohio State University, Columbus, OH
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Shiue-Shian LinThe Ohio State University, Columbus, OH
Abstract
Remote sensing techniques for quantifying suspended sediment concentration using Landsat-7 level 1T imagery were developed. Landsat-7 imagery were atmospherically corrected using atmospheric data products derived from the MODIS Terra satellite to result in surface reflectance data. A regression model was developed to quantify the suspended sediment concentration (and turbidity) measured at a sampling station with the corrected Landsat-7 ETM+ data. Results show that a strong log-linear relationship exists between the suspended sediment concentration (and turbidity) and the visible green band (ETM+ band 2) and the near infrared band (ETM+ band 4). The MODIS Terra atmospheric data products allowed for a more accurate correction of Landsat-7 imagery for application to water quality studies.