Woomera Prohibited Area Gravity Survey p201350 1VD

Gravity data measures 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 Woomera Prohibited Area Gravity Survey p201350 1VD is a first vertical derivative of the Bouguer anomaly grid for the Woomera Prohibited Area Gravity Survey, 2013 (P201350) survey. This gravity survey was acquired under the project No. 201350 for the geological survey of SA. The grid has a cell size of 0.00385 degrees (approximately 399m). A total of 34702 gravity stations were acquired to produce the original grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid.

重力数据用于测量因地球表层下方岩石密度变化引发的微小重力变化。所采集的数据将通过标准流程进行处理，以确保记录的响应仅由地下岩石引起。经处理后得到的数据集可通过解译揭示地下地质构造。经处理的数据将由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。
本次伍默拉禁区（Woomera Prohibited Area）重力测量数据集p201350 1VD，是2013年伍默拉禁区重力测量（编号P201350）项目的布格重力异常网格（Bouguer anomaly grid）的一阶垂直导数结果。本次重力测量由编号201350的项目牵头开展，用于南澳大利亚（SA）的地质调查工作。该网格的单元尺寸为0.00385度（约合399米）。为生成原始网格，共布设并采集了34702个重力测点数据。研究人员通过快速傅里叶变换（Fast Fourier Transform, FFT）算法对原始网格进行处理，以计算得到一阶垂直导数网格。