Tallaringa North - 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 Tallaringa North Airborne Magnetic Radiometric and DEM Survey, SA, 2017 survey were acquired in 2017 by the SA Government, and consisted of 98230 line-kilometres of data at 200m 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形态。本次高程数据由同批次航空磁测与放射性测量所搭载的高度计及全球定位系统（Global Positioning System，GPS）传感器计算得到。本次采用的高程为相对于澳大利亚大地基准面GDA94（AUSGEOID09）的海拔高度。经处理的高程数据已由澳大利亚地质调查局（Geoscience Australia，GA）的地球物理学家开展质量核查，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2017年南澳大利亚州（SA）塔林加北航空磁测放射性测量与数字高程模型（DEM）测量项目，该项目于2017年由南澳大利亚州政府（SA Government）实施，共采集98230线公里的测量数据，测线间距为200米，地形离地高度为60米。