Spencer - 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 Spencer - ground elevation geoid grid (laser) is elevation data for the Spencer Airborne Magnetic Radiometric and DEM survey, SA, 2018. This survey was acquired under the project No. 1310 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 41m). This grid contains the ground elevation relative to the geoid for the Spencer Airborne Magnetic Radiometric and DEM survey, SA, 2018. 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过程中采集并经处理的点位或测线定位数据所反映的地形高程变化。本斯宾塞地面高程似大地水准面（geoid）激光格网数据，对应2018年南澳大利亚州（South Australia，简称SA）斯宾塞航空磁测与放射性测量及数字高程模型（DEM）勘探项目所获取的高程数据。本次勘探系以南澳大利亚州第1310号地质调查项目的名义开展采集工作。该格网的单元格分辨率为0.0004度（约合41米）。本格网包含2018年南澳大利亚州斯宾塞航空磁测与放射性测量及数字高程模型勘探项目中相对似大地水准面的地面高程数据，该数据表征地球表面任意点位至似大地水准面的垂直距离，单位为米。经处理的数据已由澳大利亚地球科学局（GA）地球物理学家完成质量核查，以确保该局发布的最终数据符合实际使用需求。