Kingoonya - 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 Kingoonya Airborne Magnetic Radiometric and DEM survey, SA, 2018 survey were acquired in 2018 by the SA Government, and consisted of 149477 line-kilometres of data at 200m line spacing and 60m terrain clearance.

数字高程模型（Digital Elevation Model，DEM）用于表征已知高程点之间的地表地形形态。本次高程数据通过高度计及全球定位系统（Global Positioning System，GPS）传感器计算获取，该类传感器同时服务于同次测量中的航空磁法与放射性法数据采集工作。该高程为相对于澳大利亚高程基准面GDA94（AUSGEOID09）的相对高度。经澳大利亚地质调查局（Geoscience Australia，GA）的地球物理学家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。本数据集源自2018年南澳大利亚州金库尼亚航空磁法-放射性法及数字高程模型测量项目，该项目由南澳政府于2018年完成，采集数据总长149477线千米，测线间距为200米，地形离地高度为60米。