Bio-optical model of chromatic dissolved organic matter in Lake TaiHu, China

Dingtian Yang; Weimin Chen; Zhihua Mao

doi:10.1117/12.692319

28 November 2006 Bio-optical model of chromatic dissolved organic matter in Lake TaiHu, China

Dingtian Yang, Weimin Chen, Zhihua Mao

Proceedings Volume 6406, Remote Sensing of the Marine Environment; 64061B (2006) https://doi.org/10.1117/12.692319
Event: SPIE Asia-Pacific Remote Sensing, 2006, Goa, India

Abstract

In this paper, the light attenuation, fluorescence and absorbance of DOM in Lake TaiHu was mainly studied from July 2001 to December 2002. Results showed that DOM mainly contributed to the attenuation at the ultraviolet, and the best correlation coefficient was at 355 nm. The absorption of DOM could be well described by the exponential decay model. The slope value S, retrieved from absorbance of 350 nm and 440 nm, was 0.0046 nm^-1(SD=0.0015,n=284), far less than the published 0.014 nm^-1. The absorbance at 350 nm (a(350)) well correlated with DOM concentration (R^2=0.673, n=284), and also linearly correlated with fluorescence at 430 nm (R^2=0.497, n=214). The relationship between DOM concentration and fluorescence intensity was also regressed, and showed that it was polynomial.

Citation Download Citation

Dingtian Yang, Weimin Chen, and Zhihua Mao "Bio-optical model of chromatic dissolved organic matter in Lake TaiHu, China", Proc. SPIE 6406, Remote Sensing of the Marine Environment, 64061B (28 November 2006); https://doi.org/10.1117/12.692319

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