jgg     2014 34 (5):  164-167    ISSN: 0412-1961  CN: 21-1139/TG A METHOD ENHANCING THE GRIDDING PROCESS OF POTENTIAL  FIELD WITH AIRBORNE MAGNETIC GRADIENT DATA 1)College of Geo-Exploration Science and Technology，Jilin University，Changchun 130026 2)No.105 Geological Team，The Bureau of Non-ferrous Geology of Liaoning Province，Huludao 125000 Received: 2013-11-28  Revised: null  Online: 2014-09-26 Supporting info