NTGS Pedirka Gravity 202381 Complete Spherical Cap Bouguer Anomaly CSCBA267um

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 NTGS Pedirka Gravity 202381 Complete Spherical Cap Bouguer Anomaly CSCBA267um is a complete spherical cap Bouguer anomaly grid for the NTGS Pedirka Gravity Survey (P202381). This gravity survey was acquired under the project No. 202381 for the geological survey of NT. The grid has a cell size of 0.00944 degrees (approximately 1000m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 11443 gravity stations were acquired to produce this grid.

重力数据用于观测地球表层下方岩石密度变化引发的微小重力场变化。所采集的数据将通过标准化流程处理，以确保记录的重力响应仅由地下岩石引起。经处理得到的数据集可用于解译，以揭示地下地质构造。经处理的数据会由GA地球物理学家开展质量核查，以确保GA发布的最终数据符合使用要求。本数据集为NTGS Pedirka重力202381完整球冠布格异常（CSCBA267um，即Complete Spherical Cap Bouguer Anomaly的缩写），对应NTGS Pedirka重力调查（P202381）的完整球冠布格异常网格。本次重力调查以项目编号202381实施，服务于北领地（Northern Territory，缩写NT）地质调查工作。该网格的单元尺寸为0.00944度（约合1000米）。数据单位为微米每二次方秒（um/s²），亦称‘重力单位’（gravity units，缩写gu）。为生成该网格，共采集了11443个重力测站的观测数据。