Jan Mayen DTM 25

Digital terrain model with heights in a grid of 25x25 meters, based on J100 Map Data. The product covers the land area of Jan Mayen.基于J100地图数据构建的数字地形模型（Digital terrain model），采用25米×25米格网存储高程信息，覆盖扬马延岛的陆地区域。