Research and Evaluation on Key Technological Indicators for Airborne and Shipborne Gravimetry

作者：Motao HUANG,Kailiang DENG,Taiqi WU,Xiuping LU,Guojun ZHAI,Yongzhong OUYANG,Xin CHEN,Min LIU

摘要：Gravimetry technical guides are the scientific basis for air-sea gravimetry. However, the existing technical guides in China are behind the application requirements. This study analyzed the most important indicators of air-sea gravimetry, including the density of survey lines, gravimetry accuracy and space resolution, stability and reliability of the air-sea gravimeter, and proposed a gravimetry accuracy assessment system consisting of gravity RMS of error, systematic error and mean error, and an assessment system for the gravimeter stability consisting of the relative accuracy of the scale value, monthly zero-drift, RMS of the monthly nonlinear zero-drift variation and the threshold of the monthly nonlinear zero-drift variation. The mathematic models for the measurement point determination in shipborne gravimetry, E tv s correction for airborne gravimetry, platform tilt correction and evaluation air-sea gravimetry were also analyzed and modified. This work will provide technology support for the composition of the military-civil air-sea gravimetry technical guides.

发文机构：Naval Institute of Hydrographic Surveying and Charting National University of Defense Technology

关键词：AIR-SEAGRAVIMETRYtechnicalguidesKEYINDICATORSanalysisandRESEARCHtestandEVALUATIONmodelmodification

分类号： P[天文地球]