Hodgkinson-Georgetown Block E, QLD, 1999, Prospectivity Plus Init. (P799), 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 Hodgkinson-Georgetown Block E, QLD, 1999, Prospectivity Plus Init. survey were acquired in 1999 by the QLD Government, and consisted of 43162 line-kilometres of data at a line spacing between 200m and 400m, 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。本次高程数据依托同次航空磁法与航空放射性测量作业所使用的高度计及全球定位系统（GPS）传感器计算生成。该高程为相对于澳大利亚高程基准面GDA94（AUSGEOID09）的海拔高度。经处理的高程数据将由澳大利亚地球科学局（Geoscience Australia, GA）的地球物理学家开展质量核查，以确保该局发布的最终数据适配实际使用需求。本测线数据集源自1999年昆士兰州政府于昆士兰州（QLD）开展的霍奇金森-乔治敦区块E、编号为Prospectivity Plus Init.的航空测量项目，该项目于1999年完成，共采集了43162千米的测线总长数据，测线间距介于200米至400米之间，地形离地高度为80米。