Bendigo total count grid geodetic

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). 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. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered terrestrial dose rate grid.This Bendigo total count grid geodetic has a cell size of 0.00083 degrees (approximately 84m) and shows the terrestrial dose rate of the Bendigo, Vic, 1994 (GSV2688). The data used to produce this grid was acquired in 1994 by the VIC Government, and consisted of 53660 line-kilometres of data at a line spacing between 200m and 400m, and 100m terrain clearance.

放射性测量法（radiometric, or gamma-ray spectrometric method）通过采集地表附近的伽马射线自然变化数据，反演由钾（K）、铀（U）及钍（Th）天然放射性衰变产生的辐射信号。所采集的数据将通过标准化流程处理，以确保记录的响应仅源于地下岩石的辐射。经处理得到的数据集可用于解译，以揭示地下地质构造。经处理的数据将由GA地球物理学家开展质量核查，确保GA发布的最终数据符合应用需求。地面剂量率网格通过滤波后的钾、铀、钍网格的线性组合生成，随后对该网格施加低通滤波，得到滤波后的地面剂量率网格。本迪戈总计数大地网格的单元尺寸为0.00083度（约84米），展示了1994年维多利亚州（VIC）本迪戈地区的地面剂量率（GSV2688）。本数据集所用原始数据由VIC政府于1994年采集，总测线长度达53660测线公里，测线间距介于200米至400米之间，采集时的地形离地高度为100米。