Mount Isa West, Qld, 2006 (P1109), 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 Mount Isa West, Qld, 2006 survey were acquired in 2006 by the QLD Government, and consisted of 63015 line-kilometres of data at 400m line spacing and 80m 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。本次航次中，为采集航空磁测与放射性测量数据所使用的高度计及全球定位系统（Global Positioning System，GPS）传感器，被用于计算本次的高程数据。该高程为相对于澳大利亚高程基准面GDA94（AUSGEOID09）的海拔高度。经处理的高程数据已由GA地球物理学家开展质量核验，以确保GA发布的最终数据满足实际使用需求。这套来自2006年昆士兰州西芒特艾萨航次的测线数据集，由昆士兰州政府于2006年采集完成，包含63015线公里的测线数据，测线间距为400米，离地高度为80米。