Acta Optica Sinica, Volume. 36, Issue 4, 401002(2016)

Validation of the Remote Sensing Products Retrieved by Geostationary Ocean Color Imager in Liaodong Bay in Spring

Li Hao1、*, He Xianqiang1, Ding Jing2, Hu Zifeng1, Cui Wansong1, Li Shunda1, and Zhang Lin1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    The geostationary ocean color imager (GOCI) can provide high temporal resolution (1 h) and spatial resolution (500 m × 500 m) observations. Validation of the GOCI- derived ocean color products is a key for the application of the GOCI data. Based on matched-up in-situ measurements in Liaodong Bay during spring, the GOCIderived remote sensing reflectance is retrieved by four atmospheric correction algorithms,including Korea Ocean Satellite Center(KOSC)correction, management unit mathematics models (MUMM) correction,ultraviolet correction (UV-correct) and near infrared correction (NIR-correct), and the GOCI standard chlorophyll-a concentration and suspended particulate matter concentration are validated. In addition, the stability of the GOCI-derived ocean color remote sensing products under different observing time is evaluated. The results show that the remote sensing reflectance retrieved by KOSC algorithm has the best agreement with the values of in-situ observations, with mean absolute percentage deviations (APDs) of 27.16% (412 nm), 16.03% (443 nm), 13.73% (490 nm), 15.99% (555 nm), 12.83% (660 nm), 12.35% (680 nm), 27.68% (745 nm), 42.81% (865 nm) . The APDs of chlorophyll-a and suspended particulate matter products are respectively 29.75% and 26.40%. Moreover, compared with the ocean color products obtained from 10:30 to 12:30 (Beijing time), the consistency of GOCI-derived ocean color data obtained between in situ and in other observing time is much poorer.

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    Li Hao, He Xianqiang, Ding Jing, Hu Zifeng, Cui Wansong, Li Shunda, Zhang Lin. Validation of the Remote Sensing Products Retrieved by Geostationary Ocean Color Imager in Liaodong Bay in Spring[J]. Acta Optica Sinica, 2016, 36(4): 401002

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: Nov. 23, 2015

    Accepted: --

    Published Online: Apr. 5, 2016

    The Author Email: Hao Li (lihao19911212@qq.com)

    DOI:10.3788/aos201636.0401002

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