基于卫星遥感数据南海南部海洋表面流场反演

郑贵洲; 潘子轩; 孟亦菲; 王红平

doi:10.3799/dqkx.2020.250

Volume 46 Issue 1

Jan. 2021

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Article Navigation > Earth Science > 2021 > 46(1): 341-349

Zheng Guizhou, Pan Zixuan, Meng Yifei, Wang Hongping, 2021. Inversion of Sea Surface Flow Field in Southern South China Sea Based on Satellite Remote Sensing Data. Earth Science, 46(1): 341-349. doi: 10.3799/dqkx.2020.250

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Zheng Guizhou, Pan Zixuan, Meng Yifei, Wang Hongping, 2021. Inversion of Sea Surface Flow Field in Southern South China Sea Based on Satellite Remote Sensing Data. Earth Science, 46(1): 341-349. doi: 10.3799/dqkx.2020.250

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Inversion of Sea Surface Flow Field in Southern South China Sea Based on Satellite Remote Sensing Data

doi: 10.3799/dqkx.2020.250

School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, China

Received Date: 2020-08-21
Publish Date: 2021-01-15

Abstract

Abstract

The sea surface flow field can directly affect the climate change of the sea surface,and is of great significance to the study of air-sea interaction and heat flux transfer. This paper uses altimeter data from Jason-2 and HY-2 satellite,scatterometer data from ASCAT of Metop and HY-2 satellite to estimate the sea surface flow field. The grid with resolution of 0.25°×0.25° is generated by the method of weighted average distance,the sea surface elevation field and wind field are obtained by data fusing. On this basis,the inversion mathematical models of the geostrophic flow and the Ekman flow are constructed. The geostrophic flow is retrieved from Jason-2 and Hy-2 altimeter data,and the wind-driven Ekman flow is obtained from the ASCAT and Hy-2 scatterometer data,the combination of both date results in the sea surface flow field. By comparing the inversion results of the sea surface flow in the study area with OSCAR current products,it is found that the closer to the equator,the greater the error of the velocity of the sea surface flow. The maximum relative error reached 0.6 m/s. The experimental results show that the sea surface flow field estimated by satellite remote sensing data can exactly describe the basic characters of actual sea surface flow field.
- satellite altimeter,
- satellite scatterometer,
- sea surface flow field inversion,
- geostrophic flow,
- Ekman flow,
- remote sensing

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References(40)

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Inversion of Sea Surface Flow Field in Southern South China Sea Based on Satellite Remote Sensing Data

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