Canning Basin NE doserate 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, uranium and thorium. The data are collected on airborne geophysical surveys conducted by Commonwealth, State & NT Governments and the private sector.放射测量法（radiometric），或称伽马射线能谱法（gamma-ray spectrometric），可测定地球表面附近探测到的伽马射线的自然变化，该变化源于钾、铀、钍的自然放射性衰变。本数据集的数据由联邦、各州及北领地政府与私营部门开展的航空地球物理调查采集所得。