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Assessing Hurricane Katrina Vegetation Damage at Stennis Space Center using IKONOS Image Classification TechniquesHurricane Katrina inflicted widespread damage to vegetation in southwestern coastal Mississippi upon landfall on August 29, 2005. Storm damage to surface vegetation types at the NASA John C. Stennis Space Center (SSC) was mapped and quantified using IKONOS data originally acquired on September 2, 2005, and later obtained via a Department of Defense ClearView contract. NASA SSC management required an assessment of the hurricane s impact to the 125,000-acre buffer zone used to mitigate rocket engine testing noise and vibration impacts and to manage forestry and fire risk. This study employed ERDAS IMAGINE software to apply traditional classification techniques to the IKONOS data. Spectral signatures were collected from multiple ISODATA classifications of subset areas across the entire region and then appended to a master file representative of major targeted cover type conditions. The master file was subsequently used with the IKONOS data and with a maximum likelihood algorithm to produce a supervised classification later refined using GIS-based editing. The final results enabled mapped, quantitative areal estimates of hurricane-induced damage according to general surface cover type. The IKONOS classification accuracy was assessed using higher resolution aerial imagery and field survey data. In-situ data and GIS analysis indicate that the results compare well to FEMA maps of flooding extent. The IKONOS classification also mapped open areas with woody storm debris. The detection of such storm damage categories is potentially useful for government officials responsible for hurricane disaster mitigation.
Document ID
20060024559
Acquisition Source
Stennis Space Center
Document Type
Other
Authors
Spruce, Joseph P.
(Science Systems and Applications, Inc. Bay Saint Louis, MS, United States)
Ross, Kenton W.
(Science Systems and Applications, Inc. Bay Saint Louis, MS, United States)
Graham, William D.
(NASA Stennis Space Center Stennis Space Center, MS, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
SSTI-2220-0085
Meeting Information
Meeting: American Society for Photogrammery and Remote Sensing 2007 Annual Conference: Identifying Geospatial Solutions
Location: Tampa, FL.
Country: United States
Start Date: May 7, 2007
End Date: May 11, 2007
Funding Number(s)
PROJECT: SWR KTPS-1201-00
CONTRACT_GRANT: NASA Order NNS04AB54T
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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