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Proceedings Paper

Applicability evaluation of MODIS ocean color remote sensing products for the Bohai Sea: a preliminary study
Author(s): Tingwei Cui; Jie Zhang; Yi Ma
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Paper Abstract

The Bohai Sea is the inland water of China and surrounded by the land from 3 sides. In this paper in situ data of chlorophyll a concentration [Chl-a], Normalized water leaving radiance Lwn(λ) and diffuse attenuation coefficient at 490nm for downwelling irradiance Kd(490) have been used to validate corresponding MODIS data products. It's found that MODIS Lwn(λ) products of blue and green bands have mean Absolute Percentage Difference (APD) less than 15%, among which Lwn(443) has the highest precision, with APD being 5.42%. In red band, MODIS Lwn(λ) performs worst and MODIS Lwn(670) overestimates the observed value about 10 times. APD of MODIS Kd(490) is 80.69%. APD of MODIS [Chl-a] is 88.31%, and almost all the MODIS [Chl-a] overestimate the measured values. It's concluded that MODIS Lwn(λ) precision reflects the applicability of corresponding atmospheric correction algorithm in the Bohai Sea and it's recommended that the MODIS atmospheric correction model applicable to the Bohai Sea be developed. The major origin of MODIS Kd(490) and [Chl-a] error is that the inversion algorithms adopted by MODIS data processing are not applicable to the Bohai Sea and corresponding inversion model should also be developed.

Paper Details

Date Published: 14 November 2007
PDF: 7 pages
Proc. SPIE 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications, 67901M (14 November 2007); doi: 10.1117/12.749072
Show Author Affiliations
Tingwei Cui, State Oceanic Administration (China)
Jie Zhang, State Oceanic Administration (China)
Yi Ma, State Oceanic Administration (China)


Published in SPIE Proceedings Vol. 6790:
MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications

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