North Perth Gingin Brook Gravity Complete Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. 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 North Perth Gingin Brook Gravity Complete Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers is a complete spherical cap Bouguer anomaly grid for the North Perth Gingin Brook Gravity Survey, 2013 (P201360). This gravity survey was acquired under the project No. 201360 for the geological survey of WA. The grid has a cell size of 0.00363 degrees (approximately 374m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 1236 gravity stations were acquired to produce this grid.

重力数据用于量化地球表层下方岩石密度变化所引发的微小重力扰动。所采集的原始数据将通过标准流程进行处理，以确保记录的响应仅由地下岩石的物性变化引起。经处理后的数据集可通过解译揭示地下地质构造特征。处理后的数据会由GA地球物理学家开展质量核验，以保障GA发布的最终数据满足使用需求。
本数据集文件《North Perth Gingin Brook Gravity Complete Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers》为2013年北珀斯金金布鲁克重力测量（P201360）的完整球冠布格异常（Bouguer anomaly）网格数据。本次重力测量隶属于西澳大利亚州（WA）地质调查项目编号201360。该网格的单元尺寸为0.00363度（约合374米），数据单位为μm/s²，亦称为“重力单位”（gravity units）或gu。本网格共通过1236个重力测点采集数据生成。