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引用本文:马志多,孟俊敏,孙丽娜,刘永信.利用FY-4A气象卫星观测海洋内波[J].海洋科学,2021,45(2):32-39.
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利用FY-4A气象卫星观测海洋内波
马志多1,2,3, 孟俊敏2,3, 孙丽娜2,3, 刘永信1
1.内蒙古大学 电子信息工程学院, 内蒙古 呼和浩特 010000;2.自然资源部第一海洋研究所, 山东 青岛 266061;3.自然资源部海洋遥测技术创新中心, 山东 青岛 266061
摘要:
随着遥感技术的迅猛发展,可用于观测海洋内波的数据源越来越丰富。本文基于静止轨道气象卫星连续观测的优势,开展了FY-4A气象卫星海洋内波观测研究。首先计算得到了FY-4A遥感影像耀斑区位置,并基于遥感影像对结果进行了验证;然后,以此为依据选择了适用于内波观测的FY-4A数据,对比了FY-4A与MODIS遥感影像成像的差异,表明了在一定条件下FY-4A遥感影像可观测到海洋内波;最后本文利用FY-4A遥感影像计算了内波的传播速度。本研究表明随着遥感器空间分辨率的提高,静止轨道气象卫星在海洋内波观测方面越来越体现出其优势,为海洋内波的研究提供跟踪观测数据。
关键词:  海洋内波  FY-4A  耀斑区
DOI:10.11759/hykx20200221002
分类号:P731.24;P715.7
基金项目:国家自然科学基金项目(61471136);全球变化与海气相互作用专项(GASI-02-SCS-YGST2-04)
Observation of internal waves in the ocean using FY-4A meteorological satellite
MA Zhi-duo1,2,3, MENG Jun-min2,3, SUN Li-na2,3, LIU Yong-xin1
1.Inner Mongolia University, college of Electronical and Information Engineering, Hohhot 010000, China;2.First Institute of Oceanograhy, MNR, Qingdao 266061, China;3.Ocean Telemetry Technology Innovation Center, MNR, Qingdao 266061, China
Abstract:
With the rapid development of remote sensing technology, the number of data sources that can be used to observe ocean internal waves is increasing. Based on the continuous advantages of geostationary orbiting meteorological satellites, this study investigates the FengYun-4A (FY-4A) meteorological satellite ocean internal-wave observation. First, the position of the flares in the FY-4A remote-sensing image was calculated, and the results were verified based on remote-sensing images. The FY-4A data suitable for internal-wave observations was compared, and the FY-4A and MODIS remote-sensing images were also compared. The results indicate that under certain conditions, FY-4A remote-sensing images could observe the ocean internal waves. Finally, FY-4A remote-sensing images were used to calculate the internal waves. This study shows that with the improvement of the spatial resolution of remote sensors, geostationary orbit meteorological satellites will increasingly demonstrate their advantages in ocean internal-wave observation, providing tracking observation data for the study of ocean internal waves.
Key words:  ocean internal wave  FY-4A  sunglint
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