NSW DMR, Discovery 2000, 1994-95, AREA B, Darling Basin West (P732), 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, 1994-95, AREA B, Darling Basin survey were acquired in 1995 by the NSW Government, and consisted of 150000 line-kilometres of data at 400m line spacing and 80m terrain clearance.

数字高程模型（Digital Elevation Model）表征已知高程点之间的地表地形。本次高程数据通过高度计与全球定位系统（Global Positioning System，GPS）传感器计算所得，该传感器服务于同一次调查中的航空磁测与放射性测量工作。该高程为相对于澳大利亚大地基准面GDA94（AUSGEOID09）的高程值。经处理的高程数据由澳大利亚地质科学局（Geoscience Australia，GA）的地球物理学家开展质量核验，以确保该局发布的最终数据符合使用需求。本次线状数据集源自新南威尔士州矿产资源局（NSW DMR）1994-1995年"Discovery 2000"项目B区达令盆地调查，由新南威尔士州政府于1995年获取，包含总测线长度达15万千米的实测数据，测线间距为400米，地形离地高度为80米。