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2011.02.23 07:19

March 2: Science Cafe

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Date/Time:

March 2, 2011        6:30pm

Location:

 Science & Engineering Library - 090/070 (Basement)

Speaker:

Raymond F. Kokaly, US Geological Survey

 

Topic:

By land, sea, and air: Assessing ecosystem impacts from the Deepwater Horizon oil spill with field surveys and hyperspectral remote sensing

Summary:

The physical and chemical effects of oil spills can have both short- and long-term impacts on wetland function, including the interruption of benthic biogeochemical processes, decreased primary production, and increased susceptibility to marsh collapse.  More than 500 km of Louisiana’s marsh shoreline were contaminated from the Deepwater Horizon oil spill.  In this talk, I will present data collected during field surveys and airborne hyperspectral surveys, conducted as part of the Federal emergency response, that were used to assess the rate of oil flowing from the well and are being used to evaluate the impact of oil contamination in marshland ecosystems.

About our Speaker:

Raymond Kokaly is an expert on the application of imaging spectrometer data (also known as hyperspectral remote sensing) to defining the biochemical state of vegetation. He is a research geophysicist with the U.S. Geological Survey. He received a Master’s degree in Aerospace Engineering from the University of Colorado at Boulder in 1993 and a Bachelor’s degree in Aerospace Engineering from the University of Texas at Austin in 1991. His publications on the use of hyperspectral data include discriminating vegetation species in Yellowstone National Park, detecting the distributions of invasive plants in Arches National park, and studying the recovery of ecosystems from fire in southern California. Mr. Kokaly authored a recent review article on the application of imaging spectroscopy to characterizing canopy biochemistry and its application to ecosystem studies. Mr. Kokaly served on the US Government’s Flow Rate Technical Group, charged with developing an official scientific-based estimate of the flow of oil in the Deepwater Horizon oil spill.