5028 Block 1 (Southwest)reduced magnetic point-located data

GENERAL Total Magnetic Intensity (TMI) data measures variations in the intensity of the Earth's magnetic field, which includes the fields associated with the Earth's core, diurnal variations, and the magnetism of rocks in the Earth's crust. TMI data is used for geological mapping, mineral exploration, and environmental studies. REDUCED DATA The reduced point-located data are processed to highlight the response of the subsurface geology in the Earth’s crust. It has the following reductions applied: 1. Compensated for manoeuvre noise and heading error. 2. Diurnal correction. 3. Geomagnetic Reference Field correction. 4. Tie-line levelling. 5. Micro-levelling. This line dataset from the Narryer survey were acquired in 2024 by the WA Government, and consisted of 415090 line-kilometres of data at 100m line spacing and 50m terrain clearance.概述： 总磁强度（Total Magnetic Intensity, TMI）数据用于测量地球磁场强度的变化，涵盖地核产生的磁场、地磁日变以及地壳岩石的磁性。总磁强度数据可应用于地质填图、矿产勘探与环境研究。 约简数据： 经约简处理的点位数据经过加工，以凸显地壳地下地质体的磁响应。该数据集已完成以下约简处理步骤：1. 补偿机动噪声与航向误差；2. 日变校正；3. 地磁参考场校正；4. 测线平差；5. 微平差。 本次采自纳里耶（Narryer）测线项目的数据集由西澳大利亚州（Western Australia, WA）政府于2024年采集，总数据量达415090线公里，测线间距为100米，地形离地高度为50米。