NTGS North Wiso Gravity P201580 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 North Wiso Gravity P201580 Spherical Cap Bouguer Anomaly 267GU is a complete Bouguer anomaly grid for the NTGS Northern Wiso Basin Gravity Survey (P201580) survey. This gravity survey was acquired under the project No. 201580 for the geological survey of NT. The grid has a cell size of 0.00738 degrees (approximately 800m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 4990 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变动。所采集的重力数据将通过标准流程开展处理，以确保记录得到的响应仅来源于地下岩石。经处理后得到的数据集可通过解译，揭示地下地质构造。处理完成的数据将由GA地球物理学家进行质量核查，以确保GA发布的最终数据符合使用要求。本NTGS北威索重力P201580球冠布格异常（Spherical Cap Bouguer Anomaly）267GU数据集，是针对NTGS北威索盆地重力调查（P201580）项目生成的完整布格异常（Bouguer Anomaly）数据网格。本次重力调查是为开展北领地（Northern Territory，NT）地质调查，于项目编号201580项下实施的。该数据网格的像元尺寸为0.00738度，约合800米。本数据采用um/s²作为计量单位，该单位亦被称为重力单位（gravity units），缩写为gu。本次网格数据的生成共采集了4990个重力测点的实测数据。