The Geography of Oxia Planum 03 CTX DEM Mosaic

This data is a mosaic of CTX DEM and ORI’s covering the ExoMars rover landing site in Oxia Planum. This data is a basemap for Oxia Planum and will act as a georeferencing base layer for future High resolution datasets of the rover landing site.ContentsThis data set contains 4 directories:03_a Sets of elevation contours at 100 m and 25 m spacing made from the DEM and smoothed for use in map publications.03_b Mosaic of orthorectified CTX images that accompany the DEM. These data are provided in an equirectangular projection centered at 335.45°E 03_c Hillshade model of the CTX DEM mosaic. These data are provided to help assess the variability and quality of the DEM. These data are provided in an equirectangular projection centered at 335.45°E03_d CTX DEM mosaic. These data are provided in an equirectangular projection centered at 335.45°EGuide to individual files03_a_CTX_DEM_contoursNaming convention: CTX_OXIA_DEM = data from which the contours where created, _cont = contour data, _m = vertical separation of the contours (25 or 100.)File name (example) Description CTX_OXIA_DEM_cont_100m.cpg CTX_OXIA_DEM_cont_100m.dbf CTX_OXIA_DEM_cont_100m.prj Projection information CTX_OXIA_DEM_cont_100m.sbx CTX_OXIA_DEM_cont_100m.shp

本数据集融合了CTX DEM与ORI数据，覆盖了火星漫游车在奥克西亚平原的着陆点。该数据集作为奥克西亚平原的基础地图，并将作为未来高分辨率漫游车着陆点数据集的地理参照基础层。数据内容包含以下四个目录：03_a：由DEM生成的100米和25米间距的高程等高线集合，已平滑处理，适用于地图出版物；03_b：与DEM相伴的正射校正CTX图像拼图，数据以335.45°E为中心的等经圆投影提供；03_c：CTX DEM拼图的阴影模型，旨在辅助评估DEM的变异性与质量，数据以335.45°E为中心的等经圆投影提供；03_d：CTX DEM拼图，数据以335.45°E为中心的等经圆投影提供。单个文件指南：03_a_CTX_DEM_cont命名规范：CTX_OXIA_DEM = 构成等高线的原始数据，_cont = 等高线数据，_m = 等高线的垂直间距（25或100）。文件名（示例）：CTX_OXIA_DEM_cont_100m.cpg - 描述：等高线数据投影信息CTX_OXIA_DEM_cont_100m.dbf - 描述：等高线数据CTX_OXIA_DEM_cont_100m.prj - 描述：投影信息CTX_OXIA_DEM_cont_100m.sbx - 描述：等高线数据CTX_OXIA_DEM_cont_100m.shp - 描述：等高线数据