Australia Wide AFGN Absolute 2016 (P201691), gravity point data

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 Australia Wide AFGN Absolute 2016 (P201691) contains a total of 21 point data values acquired at a spacing of 750 metres. The data is located in ACT, NSW, NT, QLD, SA, TAS, VIC, WA and were acquired in 2016, under project No. 201691 for Geoscience Australia.

重力数据用于监测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化处理流程开展加工，以确保记录得到的重力响应仅由地下岩石引发。经处理得到的数据集可通过解译揭示地下地质构造。澳大利亚地球科学局（Geoscience Australia，简称GA）的地球物理学家会对处理后的数据开展质量核查，以确保GA发布的最终数据符合使用要求。

本次全澳范围AFGN绝对重力数据集2016版（编号P201691）共包含21个测点数据，测点间距为750米。该数据集覆盖澳大利亚首都领地（ACT）、新南威尔士州（NSW）、北领地（NT）、昆士兰州（QLD）、南澳大利亚州（SA）、塔斯马尼亚州（TAS）、维多利亚州（VIC）及西澳大利亚州（WA），于2016年由澳大利亚地球科学局依托编号为201691的项目采集完成。