Charters Towers simple Bouguer geodetic 2 and 4km station spacing

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 Charters Towers simple Bouguer geodetic 2 and 4km station spacing is a complete Bouguer anomaly grid for the Charters Towers Gravity Survey, Qld, 2008 (P200740). This gravity survey was acquired under the project No. 200740 for the geological survey of QLD. The grid has a cell size of 0.0074 degrees (approximately 796m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 14161 gravity stations were acquired to produce this grid.

重力数据用于测量地球表面下方岩石密度变化所引发的微小重力变动。所采集的数据均通过标准流程处理，以确保记录的响应仅源于地下岩石。经处理后的数据集可通过解译揭示地下地质构造。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。
本次查特斯堡（Charters Towers）简单布格测地数据集的测点间距为2千米与4千米，是2008年昆士兰州（Qld）查特斯堡重力测量项目（项目编号P200740）的完整布格异常（Bouguer anomaly）网格。
该重力测量工作是为开展昆士兰州地质调查，依托项目编号200740实施的。
该网格的单元尺寸为0.0074度（约合796米）。
数据单位为微米每二次方秒（um/s²），亦称为“重力单位”（gravity units，缩写gu）。
为生成该网格，共计采集了14161个重力测点。