南北极海冰漂移数据集（2019-2021年）

本数据集是基于归一化互相关算法、使用风云 3D 卫星的微波成像仪89GHz水平和垂直两种极化数据所提取的南北极海冰漂移数据，提取时间间隔为两天，数据集时间跨度为2019-2021年。 在本数据集的提取过程中，选用美国冰雪中心发布的分辨率为 12.5km 的经纬度格网数据和不莱梅大学发布的分辨率为 12.5km的海冰密集度数据进行MWRI 89GHz双极化数据的地理精配准、判断海冰区范围。大地坐标系：WGS84，投影为ESPG=3411（北极）或ESPG=3409（南极）

This dataset comprises Arctic and Antarctic sea ice drift data extracted using the Normalized Cross-Correlation (NCC) algorithm, based on 89 GHz horizontal and vertical polarization data from the Microwave Imager (MWRI) aboard the Fengyun-3D (FY-3D) satellite. The temporal interval between two adjacent extraction cycles is two days, and the dataset covers the period from 2019 to 2021.
During the data extraction workflow, 12.5 km-resolution latitude-longitude grid data released by the National Snow and Ice Data Center (NSIDC) and 12.5 km-resolution sea ice concentration data released by the University of Bremen were utilized to perform precise georeferencing of the MWRI 89 GHz dual-polarization data and delineate the extent of sea ice-covered regions.
The adopted geodetic coordinate system is WGS84, and the projection is set as EPSG:3411 (for the Arctic) or EPSG:3409 (for the Antarctic).