Daily Sea ice edge positions for 1979-2023 over the Arctic

This data represents the position of sea-ice edge derived from satellite observations for 1979-2023 over the Arctic. The sea-ice edge position is defined as the location of 15 % sea-ice concentration. The horizontal resolution is 25km and temporal resolution is daily.本数据集包含1979年至2023年北极地区由卫星观测反演得到的海冰边缘位置数据。其中，海冰边缘位置被定义为海冰密集度（sea ice concentration）达到15%的区域；该数据集的水平分辨率为25千米，时间分辨率为逐日。