Evaluating the Precision of GT-2A Airborne Gravimeter Measurements
Abstract Our research is based on the airborne gravity data from GT-2A gravimeter and the high-precision ground gravity data collected in two areas, marked as A, which is flat, and B, which is steep. We calculate the internal precision of GT-2A gravimeter by network crossover adjustment, and evaluate its external precision by comparing the continuation results of airborne and ground gravity data. The results show that the inner precision of GT-2A gravimeter is less than 1 mGal, while its external precision is less than 2 mGal in zone A, and 3 mGal in zone B.
Key words :
GT-2A airborne gravimeter
gravity disturbance
precision evaluation
gravity continuation
crossover adjustment
Cite this article:
WAN Jiakuan,LUO Zhicai,LIU Zhanke. Evaluating the Precision of GT-2A Airborne Gravimeter Measurements[J]. jgg, 2017, 37(10): 1096-1100.
WAN Jiakuan,LUO Zhicai,LIU Zhanke. Evaluating the Precision of GT-2A Airborne Gravimeter Measurements[J]. jgg, 2017, 37(10): 1096-1100.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2017/V37/I10/1096
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