NETGOLD - Pipers River, TAS, 1993 (P783), 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 NETGOLD - Fingal, Pipers River, Mt.Horror, TAS, 1993 survey were acquired in 1993 by the TAS Government, and consisted of 16797 line-kilometres of data at 200m 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。该高程数据依托为配合本次航空磁测与放射性测量作业所使用的高度计及全球定位系统（Global Positioning System，GPS）传感器计算得到。本次高程数值以澳大利亚高程基准面GDA94（AUSGEOID09）为参照基准。经处理后的高程数据由澳大利亚地球科学局（Geoscience Australia，GA）地球物理学家开展质量核查，以确保该局发布的最终数据符合应用需求。本次测线数据集源自1993年实施的NETGOLD——芬戈尔、派珀斯河、Mt.Horror、塔斯马尼亚州（TAS）调查项目，由塔斯马尼亚州政府于1993年采集完成，总数据量达16797线千米，测线间距为200米，地形离地高度为80米。