GSNSW Exploration NSW Area A3 Bancannia Trough total count grid geodetic

This GSNSW Exploration NSW Area A3 Bancannia Trough total count grid geodetic is an airborne-derived radiometric total count window countrate grid for the NSW DMR, Discovery 2000, 1994-95, AREA A3, Bancannia Trough survey. 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 total count (K), total count (U) and total count (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.This GSNSW Exploration NSW Area A3 Bancannia Trough total count grid geodetic has a cell size of 0.00063 degrees (approximately 65m). The data are in units of counts per second (cps). The data used to produce this grid was acquired in 1995 by the NSW Government, and consisted of 21000 line-kilometres of data at 400m line spacing and 80m terrain clearance.

本数据集为新南威尔士州地质调查局（GSNSW）勘探的新南威尔士州（NSW）A3班坎尼亚海槽总计数网格大地测量数据，属于机载辐射总计数窗口计数率网格，服务于新南威尔士州矿产资源部（NSW DMR）1994-1995年‘Discovery 2000’项目的班坎尼亚海槽测区航空勘探工作。辐射测量法，又称伽马射线能谱法，通过探测地表附近的伽马射线自然变化，量化由钾（K）、铀（U）与钍（Th）的天然放射性衰变产生的总计数辐射信号差异。所采集的原始数据将通过标准流程进行预处理，确保记录的辐射响应仅来源于地下岩石的天然辐射。经处理得到的数据集可通过解译揭示地下地质构造。预处理完成的数据将由澳大利亚地质调查局（GA）的地球物理学家开展质量核查，确保该局发布的最终数据符合使用需求。
本大地测量网格数据的格网单元尺寸为0.00063度（约65米），数据单位为每秒计数（counts per second, cps）。本网格数据由新南威尔士州政府于1995年采集，原始测线总长21000线公里，线间距为400米，飞行离地高度为80米。