Bendigo East (Burrumbeet, Numurkah), Vic, 1980 (GSV0188) (P603), 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 Bendigo East (Burrumbeet, Numurkah), Vic, 1980 (GSV0188) (P603), radiometric line data, AWAGS levelled were acquired in 1980 by the VIC Government, and consisted of 16417 line-kilometres of data at 250m 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（radiometric method），又称伽马射线能谱法（gamma-ray spectrometric method），通过采集地表附近的伽马射线自然变化数据，以表征钾（K）、铀（U）与钍（Th）的天然放射性衰变所产生的辐射信号。所采集的数据将通过标准流程进行预处理，确保记录的响应信号仅源自地下岩石的辐射。经处理后得到的数据集可通过解译揭示地下地质构造特征。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。
1980年，维多利亚州（VIC）政府采集了东本迪戈（Burrumbeet、Numurkah区域，维多利亚州）的放射性测量航线数据，该数据集编号为GSV0188、P603，已采用澳大利亚全国航空地球物理调查（Australia-wide Airborne Geophysical Survey, AWAGS）基准进行平差处理。该数据集总航线长度达16417线公里，航线间距为250米，飞行离地高度为80米。为约束数据中的长波长分量，本次调查采用独立数据集——澳大利亚全国航空地球物理调查（AWAGS）航空磁测数据——来控制测量数据的基准面偏移。本航线数据已基本完成AWAGS基准平差。