Evaluation on the impact of terrestrial pollutant input to the adjoining fishing ground using satallite data

Zhang Xiaoyu; Lin Yian; He Xianqiang; Wang Haiyang; Gong Fang; Liu Tao; Pan Delu

doi:10.1117/12.627382

19 October 2005 Evaluation on the impact of terrestrial pollutant input to the adjoining fishing ground using satallite data

Zhang Xiaoyu, Lin Yian, He Xianqiang, Wang Haiyang, Gong Fang, Liu Tao, Pan Delu

Author Affiliations +

Proceedings Volume 5977, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2005; 597705 (2005) https://doi.org/10.1117/12.627382
Event: SPIE Remote Sensing, 2005, Bruges, Belgium

Abstract

Field investigation was carried out during 4, April, 2001 to 15, April, 2001 around Zhoushan Fishing Ground. The surface nutrient and suspended sediment (SS) concentration exhibit remarkable features. Most striking are that all data show very high values at the end member Changjiang Diluted Water (CDW), decrease abruptly at the onset of mixing of Taiwan Warm Current. The frontal zone is mainly located near 123°E, which is supported powerfully by NOAA sea surface temperature (SST) image. Total phosphorus (TP) concentration is affected profoundly with SS concentration, for robust relationship between total particulate (TPP) and TP is observed in most stations (R²=0.9073, n=10). Positive correlation between in-situ concentration of TP and SS are found. The experimental regression equation is represented as C_TP=0.0195*C_SS+0.5266, R²=0.5645(n=32). NO₃- is the main form of DIN, of more than 82% in DIN, exhibits considerable conservative feature. Although lack of in-situ CDOM measurement, good relationship was established between in-situ DIN concentration with near real time SeaWiFS ACD data: C_DIN=135.1351*C_ACD-6.0, R2=0.7514 (n=15). The two empirical regression algorithms were utilized for inversing TP and DIN concentration from SeaWiFS SS and ACD. The algorithms were adopted to evaluate the impaction of terrestrial pollutant input to the area by CDW.

Citation Download Citation

Zhang Xiaoyu, Lin Yian, He Xianqiang, Wang Haiyang, Gong Fang, Liu Tao, and Pan Delu "Evaluation on the impact of terrestrial pollutant input to the adjoining fishing ground using satallite data", Proc. SPIE 5977, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2005, 597705 (19 October 2005); https://doi.org/10.1117/12.627382

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KEYWORDS

Satellites

Water

Phosphorus

Remote sensing

Oceanography

Ocean optics

Atmospheric corrections

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