北极喀拉海典型动力现象的SAR遥感观测

Observation of SAR Remote Sensing Images of Typical Dynamic Phenomena in the Arctic Kara Sea

摘要:

SAR 遥感观测是海洋动力现象研究的一种重要方法，然而北极海洋的 SAR 遥感观测还比较少， 关于高纬度区域 SAR 遥感图像的解译存在一定困难。利用 Sentinel-1 遥感图像对北极地区喀拉海的典型动力现象进行了遥感观测，根据喀拉海的地形和水动力结构对喀拉海海洋现象的 SAR 图像进行了解译。研究表明： 在喀拉海的 Sentinel-1 遥感图像中可以发现清晰的海洋内波、涡旋和锋面的表面特征，分析了其生成原因，为高纬度地区 SAR 图像特征识别与分析提供了参考，有助于深入开展星载 SAR 北极地区海洋现象的遥感研究。

关键词:SAR 遥感;图像解译;喀拉海;Sentinel-1

Abstract:

SAR remote sensing is an important method for studying ocean dynamic phenomena. However， there are still relatively few SAR remote sensing observations in the Arctic Ocean，and there are certain difficulties in interpreting SAR remote sensing images in high latitude regions. Typical dynamic phenomena of the Kara Sea in the Arctic region are observed using Sentinel-1 remote sensing images，and the SAR images of the marine phenomena in Kara Sea are interpreted based on its terrain and hydrodynamic structure. The results show that clear surface features of ocean internal waves，eddies，and fronts can be found in Sentinel-1 remote sensing images of the Kara Sea. The reasons for their generation are analyzed，providing a reference for the recognition and analysis of SAR image features in high latitude areas，and is helpful to the in-depth remote sensing research on marine phenomena in the Arctic region using spaceborne SAR.

Key words:SAR remote sensing;image interpretation;the Kara Sea;Sentinel-1