2010 GSA Denver Annual Meeting (31 October 3 November 2010)
Paper No. 253-2
Presentation Time: 8:00 AM-6:00 PM


EBERSOLE, Sandy1, DARBY, Steve1, THORN, Joel2, and BROWN, Brian3, (1) Geological Survey of Alabama, Tuscaloosa, AL 35486, sebersole@gsa.alabama.gov, (2) Geography, University of Alabama, Tuscaloosa, AL 35486, (3) Geological Sciences, University of Alabama, Tuscsaloosa, AL 35486

The objectives of the Sediment Analysis Network for Decision Support (SANDS) project are (1) to enhance MODIS, Landsat, and SeaWiFS satellite data to generate products for suspended sediment analyses in the north central Gulf of Mexico, and (2) to share both the original satellite data and the sediment-enhanced products to Gulf end users. Data used include visual and infrared reflected bands from satellite scenes for multiple tropical storms and hurricanes from 2000 to 2009. Scenes include both pre- and post-storm data for each storm. Methodology for enhancing suspended sediment includes cluster busting, band ratio analysis, and ISODATA. Enhanced data shows suspended sediment carried out much farther into the Gulf than can be seen in normal true color images. Increased area of sediment plumes from pre- to post- storm data are also visualized in the enhanced imagery and help to compare pre- to post-storm runoff, sediment suspension, and transport patterns. ISODATA and band ratios also return spectral separation of suspended sediment plumes from Mobile Bay and the Mississippi River, a variation in the mineral composition of the plumes.

2010 GSA Denver Annual Meeting (31 October 3 November 2010)
General Information for this Meeting
Session No. 253--Booth# 143
Remote Sensing/Geographic Information System (Posters)
Colorado Convention Center: Hall B
8:00 AM-6:00 PM, Wednesday, 3 November 2010

Geological Society of America Abstracts with Programs, Vol. 42, No. 5, p. 601

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