D'Aguilar Range, Tas, 2001 (WTRMP Area E) (P821), radiometric line data, AWAGS levelled

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This D'Aguilar Range, Tas, 2001 (WTRMP Area E) (P821), radiometric line data, AWAGS levelled were acquired in 2001 by the TAS Government, and consisted of 1175 line-kilometres of data at 200m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

放射性测量法（又称伽马射线能谱法）通过探测地球地表附近的伽马射线自然变化，表征钾（K）、铀（U）和钍（Th）的天然放射性衰变产生的辐射信号。所采集的数据将通过标准化流程处理，以确保记录的响应信号仅由地下岩石产生。处理后得到的数据集可通过解译，揭示地下地质构造。经处理的数据将由GA地球物理学家开展质量核查，以确保GA发布的最终数据符合使用需求。
本数据集为2001年塔斯马尼亚（Tas）达圭勒山脉（D'Aguilar Range）区域（WTRMP E区，编号P821）的经澳大利亚全国航空地球物理调查（Australia-wide Airborne Geophysical Survey，AWAGS）校正的放射性测线数据，由塔斯马尼亚州政府于2001年采集完成，总测线长度达1175测线公里，测线间距为200米，地形离地高度为80米。
为抑制数据中的长波长信号，研究人员采用独立数据集——澳大利亚全国航空地球物理调查（AWAGS）航空磁测数据——对本次调查数据的基准水平进行校正。本测线数据已基本完成基于AWAGS的平差校正。