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Water and bottom properties of a coastal environment derived from Hyperion data measured from the EO-1 spacecraft platform Público Deposited

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https://ir.library.oregonstate.edu/concern/articles/5d86p176n

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Abstract
  • Hyperion is a hyperspectral sensor on board NASA’s EO-1 satellite with a spatial resolution of approximately 30 m and a swath width of about 7 km. It was originally designed for land applications, but its unique spectral configuration (430 nm – 2400 nm with a ~10 nm spectral resolution) and high spatial resolution make it attractive for studying complex coastal ecosystems, which require such a sensor for accurate retrieval of environmental properties. In this paper, Hyperion data over an area of the Florida Keys is used to develop and test algorithms for atmospheric correction and for retrieval of subsurface properties. Remotesensing reflectance derived from Hyperion data is compared with those from in situ measurements. Furthermore, water’s absorption coefficients and bathymetry derived from Hyperion imagery are compared with sample measurements and LIDAR survey, respectively. For a depth range of ~ 1 – 25 m, the Hyperion bathymetry match LIDAR data very well (~11% average error); while the absorption coefficients differ by ~16.5% (in a range of 0.04 – 0.7 m[superscript -1] for wavelengths of 410, 440, 490, 510, and 530 nm) on average. More importantly, in this top-to-bottom processing of Hyperion imagery, there is no use of any a priori or ground truth information. The results demonstrate the usefulness of such space-borne hyperspectral data and the techniques developed for effective and repetitive observation of complex coastal regions.
  • Keywords: Bathymetry, Remote sensing, LIDAR, Aquatic environment, Satellite
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  • Lee, Z., Dye, J., Casey, B., Arnone, R., Weidemann, A., Parsons, R., . . . Davis, C. (2007). Water and bottom properties of a coastal environment derived from hyperion data measured from the EO-1 spacecraft platform. Journal of Applied Remote Sensing, 1 doi: 10.1117/1.2822610
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Journal Volume
  • 1
Journal Issue/Number
  • 11502
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  • Support for this study was provided by NASA through the “Evaluation of EO-1 Hyperion and ALI data for coastal waters” project and NRL through the “Lidar and Hyperspectral Remote Sensing of Littoral Environment (NRL 73-6734)” project.
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