P902demg

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This P902demg is elevation data for the SMMSP - AEM - St George, Qld, 2001. This survey was acquired under the project No. 902 for the geological survey of QLD. The grid has a cell size of 0.00083 degrees (approximately 87m). This grid contains the ground elevation relative to the geoid for the SMMSP - AEM - St George, Qld, 2001. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

数字高程数据（Digital Elevation data）记录了基于地球物理勘探（geophysical survey）中采集并经处理的点位或测线数据所得到的地形高程变化。本次P902demg数据集为2001年昆士兰州（Qld）圣乔治地区SMMSP - AEM项目的高程数据。该地球物理勘探隶属于编号为902的昆士兰州地质调查项目。该栅格数据的单元尺寸为0.00083度（约87米），包含2001年昆士兰州圣乔治地区SMMSP - AEM项目的相对于大地水准面（geoid）的地面高程信息。该高程值代表地球表面任意位置至大地水准面的垂直距离，数据单位为米。经澳大利亚地球科学局（GA）地球物理学家对处理后的数据开展质量核查，以确保该局发布的最终数据符合使用需求。