Carnarvon Basin South, WA, 2011 (P1235), 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 Carnarvon Basin South, WA, 2011 survey were acquired in 2012 by the WA Government, and consisted of 124028 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。本次高程数据由配套服务于本次航空磁法与放射性测量作业的高度计及全球定位系统（Global Positioning System，GPS）传感器计算所得，其高程基准采用澳大利亚高程基准GDA94（AUSGEOID09）。经澳大利亚地球科学局（Geoscience Australia，GA）的地球物理学家开展质量核验，确保GA发布的最终数据符合应用需求。该测线数据集源自2011年西澳大利亚州南卡那封盆地（Carnarvon Basin South, WA）航空测量项目，由西澳政府于2012年完成数据采集，测线总长124028线公里，测线间距为400米，飞行离地高度为60米。