中国第11次北极科学考察（2020年）高亚洲与格陵兰冰盖典型冰川流速数据集
收藏国家极地科学数据中心2024-04-07 更新2024-04-21 收录
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https://datacenter.chinare.org.cn/data-center/metadata?id=6d740dc2-2390-46de-b6f3-158b79b00529
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资源简介：
本数据产品针对高亚洲与北极地区典型冰川分别采集密集获取的哨兵-2及哨兵-1，对影像以小基线网方式进行配对，以频率域NCC算法获取偏移量后，经过粗差剔除、基准矫正等步骤，再以SVD方法解算流速时序。再将获取的时序合成为年速率。产品提供真北与真东方向流速矢量。
This data product densely acquires Sentinel-2 and Sentinel-1 imagery for typical glaciers in High Asia and the Arctic regions respectively. It pairs the imagery using a small-baseline network approach, obtains offset values via the frequency-domain Normalized Cross-Correlation (NCC) algorithm, and conducts procedures including outlier removal and datum correction. Subsequently, it retrieves velocity time series through the Singular Value Decomposition (SVD) method, synthesizes the acquired time series into annual velocity rates, and provides velocity vectors in the true north and true east directions.
提供机构：
中山大学测绘科学与技术学院
创建时间：
2024-04-07
