Cooper Basin East, Qld, 2008 (P1174), 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 Cooper Basin East, Qld, 2008 survey were acquired in 2008 by the QLD Government, and consisted of 216336 line-kilometres of data at 400m 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。本次高程数据依托为同次航空磁测与放射性测量作业配套部署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。经处理后的高程数据由GA地球物理学家开展质量核查，以确保GA发布的最终数据满足既定使用需求。该批测线数据集源自2008年昆士兰州库珀盆地东部作业项目，由昆士兰州政府于2008年完成采集，总测线长度达216336测线公里，测线间距为400米，作业离地高度为60米。