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Long time-series of turbid coastal water using AVHRR: An example from Florida Bay, USA

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DOI: 10.1117/12.266402

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Abstract

The AVHRR can provide information on the reflectance of turbid case II water, permitting examination of large estuaries and plumes from major rivers. The AVHRR has been onboard several NOAA satellites, with afternoon overpasses since 1981, offering a long time-series to examine changes in coastal water. We are using AVHRR data starting in December 1989, to examine water clarity in Florida Bay, which has undergone a decline since the late 1980's. The processing involves obtaining a nominal reflectance for red light with standard corrections including those for Rayleigh and aerosol path radiances. Established relationships between reflectance and the water properties being measured in the Bay provide estimates of diffuse attenuation and light limitation for phytoplankton and seagrass productivity studies. Processing also includes monthly averages of reflectance and attenuation. The AVHRR data set describes spatial and temporal patterns, including resuspension of bottom sediments in the winter, and changes in water clarity. The AVHRR also indicates that Florida Bay has much higher reflectivity relative to attenuation than other southeastern US estuaries. ??2005 Copyright SPIE - The International Society for Optical Engineering.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Long time-series of turbid coastal water using AVHRR: An example from Florida Bay, USA
DOI:
10.1117/12.266402
Volume
2963
Year Published:
1997
Language:
English
Larger Work Title:
Proceedings of SPIE - The International Society for Optical Engineering
First page:
796
Last page:
801
Number of Pages:
6
Conference Title:
Ocean Optics XIII
Conference Location:
Halifax, NS
Conference Date:
22 October 1996 through 22 October 1996