NSW DMR, Discovery 2000 Area K, Peel - East (Gwydir), NSW, 1998 (P740), 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 NSW DMR, Discovery 2000 Area K, Peel (Inverell,Manilla), NSW, 1998 survey were acquired in 1998 by the NSW Government, and consisted of 61165 line-kilometres of data at 250m line spacing and 60m terrain clearance.

数字高程模型（Digital Elevation Model）用于表征已知高程点之间的地表地形形态。本次高程数据通过本次航空磁测与放射性测量配套使用的高度计及全球定位系统（Global Positioning System, GPS）传感器计算获取。该高程为相对于澳大利亚高程基准面GDA94（AUSGEOID09）的高度值。经处理的高程数据由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。该线状数据集由新南威尔士州政府于1998年采集，源自新南威尔士州皮尔（因弗雷尔、马尼拉）地区Discovery 2000 K区NSW DMR 1998年测量项目，数据总长61165线公里，测线间距为250米，地形离地高度为60米。