Tallaringa South - ground elevation geoid grid (laser)

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This Tallaringa South - ground elevation geoid grid (laser) is elevation data for the Tallaringa South Airborne Magnetic Radiometric and DEM Survey, SA, 2017. This survey was acquired under the project No. 1298 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 42m). This grid contains the ground elevation relative to the geoid for the Tallaringa South Airborne Magnetic Radiometric and DEM Survey, SA, 2017. 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）记录了地球物理勘探期间采集并经处理的点位或线状测点数据所反映的地形高程起伏。本塔拉里加南部地面高程大地水准面（geoid）激光格网数据，属于2017年南澳大利亚州塔拉里加南部航空磁放射性测量与数字高程模型（Digital Elevation Model, DEM）勘探项目的高程数据。本次勘探数据由南澳大利亚州编号为1298的地质调查项目采集完成。该格网的像元尺寸为0.0004度（约42米），其包含的正是上述2017年南澳大利亚州该勘探项目中，相对于大地水准面的地面高程数据，即地球表面某点位至大地水准面的垂直距离，数据单位为米。经处理的数据已由GA地球物理学家开展质量核查，以确保GA发布的最终数据满足使用需求。