NTGS Victoria Basin Gravity P201582 Complete Spherical Cap Bouguer Anomaly 267GU

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 Victoria Basin Gravity P201582 Complete Spherical Cap Bouguer Anomaly 267GU is a complete spherical cap Bouguer anomaly grid for the NTGS Victoria Basin Gravity Survey (P201582). This gravity survey was acquired under the project No. 201582 for the geological survey of NT. The grid has a cell size of 0.00735 degrees (approximately 800m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 6172 gravity stations were acquired to produce this grid.

重力数据用于测量地球表层下方岩石密度变化所引发的微小重力场变化。所采集的数据将通过标准流程处理，以确保记录得到的响应仅源于地下岩石。经处理得到的数据集可用于解译，以揭示地下地质构造。由GA地球物理学家对处理后的数据开展质量检查，以确保GA发布的最终数据符合使用要求。
本数据集为NTGS维多利亚盆地重力调查（项目编号P201582）的完整球冠布格异常（Spherical Cap Bouguer Anomaly）网格，命名为NTGS Victoria Basin Gravity P201582 Complete Spherical Cap Bouguer Anomaly 267GU。本次重力调查是为北领地（NT）地质调查工作实施的项目P201582项下所获取。该网格的单元尺寸为0.00735度（约800米），数据单位为微米每二次方秒（μm/s²），亦称为"重力单位"（gravity units，缩写gu）。本次网格的构建共依托6172个重力测点完成。