Applicability evaluation of MODIS ocean color remote sensing products for the Bohai Sea: a preliminary study

Tingwei Cui; Jie Zhang; Yi Ma

doi:10.1117/12.749072

14 November 2007 Applicability evaluation of MODIS ocean color remote sensing products for the Bohai Sea: a preliminary study

Tingwei Cui, Jie Zhang, Yi Ma

Author Affiliations +

Proceedings Volume 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications; 67901M (2007) https://doi.org/10.1117/12.749072
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China

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 L_wn(λ) and diffuse attenuation coefficient at 490nm for downwelling irradiance K_d(490) have been used to validate corresponding MODIS data products. It's found that MODIS L_wn(λ) products of blue and green bands have mean Absolute Percentage Difference (APD) less than 15%, among which L_wn(443) has the highest precision, with APD being 5.42%. In red band, MODIS L_wn(λ) performs worst and MODIS L_wn(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 L_wn(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 K_d(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.

Citation Download Citation

Tingwei Cui, Jie Zhang, and Yi Ma "Applicability evaluation of MODIS ocean color remote sensing products for the Bohai Sea: a preliminary study", Proc. SPIE 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications, 67901M (14 November 2007); https://doi.org/10.1117/12.749072

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