GSNSW Exploration NSW Area J Cobar Nymagee Part1 elevation grid geodetic

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This GSNSW Exploration NSW Area J Cobar Nymagee Part1 elevation grid geodetic is elevation data for the NSW DMR, Discovery 2000 Area J,Cobar-Nymagee, NSW, 1998. This survey was acquired under the project No. 741 for the geological survey of NSW. The grid has a cell size of 0.00049 degrees (approximately 50m). This grid contains the ground elevation relative to the geoid for the NSW DMR, Discovery 2000 Area J,Cobar-Nymagee, NSW, 1998. 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数据所反映的地形高程变化。本次提供的GSNSW勘探项目新南威尔士州J区科巴-尼马吉第一部分大地测量高程网格数据，为1998年新南威尔士州Discovery 2000项目J区、科巴-尼马吉区域的NSW DMR配套高程数据集。该勘探数据依托新南威尔士州地质调查局第741号项目采集完成。该网格的单元尺寸为0.00049度（约合50米）。该网格存储了对应区域相对于大地水准面的地面高程数据，其数值代表地球表面某点至大地水准面的垂直距离，数据单位为米。经处理后的数据集已由GA地球物理学家开展质量核查，以确保GA发布的最终数据符合使用要求。