A study on shading error and correctiton of underwater optical measurements

WU Ting-fang; CAO Wen-xi

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WU Ting-fang, CAO Wen-xi. A study on shading error and correctiton of underwater optical measurements[J]. Haiyang Xuebao, 2003, 25(1): 42-51.

Citation:

WU Ting-fang, CAO Wen-xi. A study on shading error and correctiton of underwater optical measurements[J]. Haiyang Xuebao, 2003, 25(1): 42-51.

WU Ting-fang, CAO Wen-xi. A study on shading error and correctiton of underwater optical measurements[J]. Haiyang Xuebao, 2003, 25(1): 42-51.

Citation:

WU Ting-fang, CAO Wen-xi. A study on shading error and correctiton of underwater optical measurements[J]. Haiyang Xuebao, 2003, 25(1): 42-51.

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A study on shading error and correctiton of underwater optical measurements

Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Ocanology, Chinese Academy of Sciences, Guangzhou 510301, China

Received Date: 2001-02-16
Rev Recd Date: 2002-03-11

Abstract

Abstract

The self-shading measurement error of the upwelling radiance and irradiance in different depths of infinite deep-sea water due to a optical system consisting of eight separated instruments and a rectangular frame is calculated with backward Monte Carlo technique.The relationship between the error and the sunlight azimuth relative to the system is showed.The error for different sun zeniths due to the coexisting of the system and ship is calculated as well.A multispectral iterated method for correcting the self-shading errors of remote sensing reflectance due to the L_u radiance instrument is given.Modeling computation shows that the corrected errors are less than 5% for Case 1 sea waters with chlorophyll concentration lower than 120.00 mg/m³.
- shading effect,
- error correction,
- Monte Carlo modeling,
- Case 1 sea water

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References(9)

References

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