AlbanyFraserNth CompleteSphCapBouguer 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 AlbanyFraserNth CompleteSphCapBouguer geodetic is a complete spherical cap Bouguer anomaly grid for the Albany Fraser Gravity Survey (P201062). This gravity survey was acquired under the project No. 201062 for the geological survey of WA. The grid has a cell size of 0.005 degrees (approximately 519m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 9258 gravity stations were acquired to produce this grid.

重力数据用于测量地球表面下方岩石密度变化所引发的微小重力变动。所采集的数据需通过标准流程开展处理，以确保记录的响应仅由地下岩石引起。经处理得到的数据集可通过解译揭示地下地质构造。处理后的数据需由GA地球物理学家进行质量核查，以确保GA发布的最终数据满足使用要求。
本次AlbanyFraserNth CompleteSphCapBouguer大地测量数据集，是针对奥尔巴尼-弗雷泽重力测量项目（P201062）构建的完整球冠布格异常网格。该重力测量工作由编号为201062的项目实施，服务于西澳大利亚州（WA）的地质调查。该网格的单元格尺寸为0.005度（约合519米）。数据单位为微米每二次方秒（μm/s²），也被称为“重力单位”（简称gu）。本次网格构建共采集了9258个重力测点。