Anketell (Detailed), WA, 2002 (P1080), 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 Anketell (Detailed), WA, 2002 (P1080), radiometric line data, AWAGS levelled were acquired in 2002 by the WA Government, and consisted of 23340 line-kilometres of data at 150m line spacing and 25m 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（radiometric method）又称伽马能谱法（gamma-ray spectrometric method），通过探测地球表面附近的伽马射线自然变化，表征钾（K）、铀（U）与钍（Th）的自然放射性衰变产生的辐射信号。采集所得数据将通过标准流程进行处理，以确保记录的辐射响应仅来自地下岩石。经处理得到的数据集可用于解译，以揭示地下地质构造。处理后的数据将由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使用需求。

本次安克特尔（详细版）数据集（西澳大利亚州，2002年，编号P1080）为经全澳航空地球物理调查（Australia-wide Airborne Geophysical Survey, AWAGS）校正的放射性测量测线数据，由西澳大利亚州政府于2002年采集，总测线长度达23340测线千米，测线间距为150米，飞行离地高度为25米。为抑制数据中的长波长系统性成分，研究人员采用独立数据集——全澳航空地球物理调查（AWAGS）航空磁测数据——对本次调查数据的基准水平进行管控。本次调查数据实质上已完成以AWAGS为基准的平差校正。