Australia-Wide Airborne Geophysical Survey 2 (AWAGS2), 2007 (P1152), magnetic line data

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data 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.
These line dataset from the Australia-Wide Airborne Geophysical Survey 2 (AWAGS2), 2007 survey were acquired in 2007 by Geoscience Australia at 75000m line spacing and 80m terrain clearance.

总磁场强度（Total Magnetic Intensity, TMI）数据用于衡量由地壳内造岩矿物成分差异所引起的地球磁场强度变化。磁异常可分为正异常（磁场强度高于正常值）与负异常（磁场强度低于正常值），具体取决于岩石的磁化率。该数据通过标准流程进行处理，以确保所记录的磁场响应仅源于地下岩石。经处理后得到的数据集可通过解译揭示地下地质构造。经处理的数据由澳大利亚地球科学局（Geoscience Australia, GA）的地球物理学家开展质量检查，以确保GA发布的最终数据符合使用要求。
该批测线数据集源自2007年开展的全国航空地球物理调查2（Australia-Wide Airborne Geophysical Survey 2, AWAGS2），由澳大利亚地球科学局于2007年采集，测线间距为75000米，飞行离地高度为80米。