Compensation of SQUID gradient data in a magnetic tensor gradiometer system for airborne exploration

Abstract

Aeromagnetic exploration is an important prospecting method in geophysics. Starting in 1997, a SQUID based gradiometer system has been developed, which makes it possible to directly measure the gradient tensor components and has many advantages compared to conventional TMI measurements. Meanwhile, questions have been raised about the compensation due to its high sensitivity. Therefore, the aeromagnetic compensation method urgently needs improvement.