GSWA Mt Barker 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 GSWA Mt Barker Elevation Grid Geodetic is elevation data for the South West (Mt Barker and Lake Muir), WA, 2011. This survey was acquired under the project No. 1245 for the geological survey of WA. The grid has a cell size of 0.00042 degrees (approximately 42m). This grid contains the ground elevation relative to the geoid for the South West (Mt Barker and Lake Muir), WA, 2011. 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。本数据集为GSWA Mt Barker Elevation Grid Geodetic，即2011年西澳大利亚州（WA）巴克山（Mt Barker）与缪尔湖（Lake Muir）西南区域的高程数据。本次勘探数据由服务于西澳大利亚州地质调查的编号为1245的项目采集。该栅格数据的像元尺寸为0.00042度（约42米）。本栅格数据记录了2011年西澳该西南区域相对于大地水准面（geoid）的地面高程，其数值代表地球表面任意点位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验，以确保GA发布的最终数据符合应用需求。