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Characterizing the marsh dieback spectral response at the plant and canopy level with hyperspectral and temporal remote sensing data

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DOI: 10.1109/BALTIC.2008.4625515

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Abstract

We describe newly developed remote sensing tools to map the localized occurrences and regional distribution of the marsh dieback in coastal Louisiana (Fig. 1). As a final goal of our research and development, we identified what spectral features accompanied the onset of dieback and could be directly linked to the optical signal measured at the satellite. In order to accomplish our research goal, we carried out two interlinked objectives. First, we determined the spectral features within the hyperspectral spectra of the impacted plant that could be linked to the spectral return. This was accomplished by measuring the differences in leaf optical properties of impacted and non impacted marsh plants in such a way that the measured differences could be linked to the dieback onset and progression. The spectral analyses were constrained to selected wavelengths (bands of reflectance data) historically associated with changes in leaf composition and structure caused by changes in the plant biophysical environment. Second, we determined what changes in the canopy reflectance (canopy signal sensed at the satellite) could be linked to dieback onset and progression. Third, we transformed a suite of six Landsat Thematic Mapper images collected before, during, and in the final stages of dieback to maps of dieback occurrences. ??2008 IEEE.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Characterizing the marsh dieback spectral response at the plant and canopy level with hyperspectral and temporal remote sensing data
ISBN:
9781424422685
DOI:
10.1109/BALTIC.2008.4625515
Year Published:
2008
Language:
English
Conference Title:
US/EU-Baltic International Symposium: Ocean Observations, Ecosystem-Based Management and Forecasting, BALTIC
Conference Location:
Tallinn
Conference Date:
27 May 2008 through 29 May 2008