SMMSP - MagSpec - Angas Bremer Plains, SA, 2002 (2002/01) (P909), elevation line data

The Digital Elevation Model represents ground surface topography between points of known elevation. The elevation data was calculated using the altimeters and Global Positioning System (GPS) sensor used for the benefit of airborne magnetic and radiometric data on the same survey. The elevation is the height relative to the Australian Height Datum GDA94 (AUSGEOID09). The processed elevation data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. These line dataset from the SMMSP - MagSpec - Angas Bremer Plains, SA, 2002 (2002/01) survey were acquired in 2002 by the SA Government, and consisted of 7535 line-kilometres of data at 100m line spacing and 60m terrain clearance.

数字高程模型（Digital Elevation Model）可表征已知高程点之间的地表地形起伏。本次高程数据通过同一测量任务中用于航空磁测与放射性测量数据采集的高度计及全球定位系统（Global Positioning System）传感器计算得到。该高程为相对于澳大利亚高程基准面GDA94（AUSGEOID09）的高度值。澳大利亚地球科学局（Geoscience Australia，GA）的地球物理学家会对处理后的高程数据开展质量核查，以确保该局发布的最终数据符合使用需求。本次测线数据集源自2002年（任务编号2002/01）的SMMSP-MagSpec-Angas Bremer Plains航空测量项目，由南澳大利亚州政府于2002年采集，测线总长7535千米，线间距为100米，飞行离地高度为60米。