Gascoyne North Complete Spherical Cap Bouguer Geodetic

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 Gascoyne North Complete Spherical Cap Bouguer Geodetic is a complete spherical cap Bouguer anomaly grid for the Gascoyne 2010 Gravity Survey (P201060). This gravity survey was acquired under the project No. 201060 for the geological survey of WA. The grid has a cell size of 0.0047 degrees (approximately 499m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 7293 gravity stations were acquired to produce this grid.

重力数据用于探测地球表层下方岩石密度变化引发的微小重力场扰动。所采集的数据将通过标准化流程处理，以确保记录得到的响应仅源于地下岩石。经处理后的数据集可通过解译揭示地下地质构造。处理后的数据将由GA地球物理学家开展质量核验，以保障GA发布的最终数据符合使用需求。本加斯科因北部完整球冠布格大地测量数据集（Gascoyne North Complete Spherical Cap Bouguer Geodetic）为2010年加斯科因重力勘探（项目编号P201060）配套的完整球冠布格异常（spherical cap Bouguer anomaly）网格数据。该重力勘探由针对西澳大利亚州（Western Australia，简称WA）地质调查的201060号项目牵头实施。该网格的单元格分辨率为0.0047度（约合499米）。本数据以微米每二次方秒（um/s²）为单位，该单位亦被称为"重力单位（gravity units，缩写gu）"。本次网格共依托7293个重力测点构建完成。