Ballarat, VIC, 1992 (GSV2432) (P582), 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 Ballarat, VIC, 1992 (GSV2432) survey were acquired in 1992 by the VIC Government, and consisted of 44570 line-kilometres of data at a line spacing between 200m and 400m, and 100m terrain clearance.

数字高程模型（Digital Elevation Model）表示已知高程点之间的地表地形。高程数据是利用同一测量中用于获取航空磁测与辐射测量数据的高度计及全球定位系统（Global Positioning System, GPS）传感器计算得出的。高程值相对于澳大利亚高程基准GDA94（AUSGEOID09）。处理后的高程数据由GA地球物理学家进行质量检查，以确保GA发布的最终数据符合预期用途。这些来自维多利亚州巴拉瑞特1992年（GSV2432）测量的线状数据集由维多利亚州政府于1992年获取，包含44570线公里的数据，线间距为200米至400米，地形净空高度为100米。