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

doi:10.11947/j.JGGS.2019.0305

Journal of Geodesy and Geoinformation Science ›› 2019, Vol. 2 ›› Issue (3): 44-54.doi: 10.11947/j.JGGS.2019.0305

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

Motao HUANG¹,Kailiang DENG^1,²(),Taiqi WU¹,Xiuping LU¹,Guojun ZHAI¹,Yongzhong OUYANG¹,Xin CHEN¹,Min LIU¹

1. Naval Institute of Hydrographic Surveying and Charting,Tianjin 300061,China
2. National University of Defense Technology,Changsha 410073,China

Received:2019-02-02 Accepted:2019-06-30 Online:2019-09-20 Published:2020-01-21
Contact: Kailiang DENG E-mail:dengkailiang036@163.com
About author:Motao HUANG(1961—), male, PhD supervisor,majors in the studies of marine gravity field theory and applications. E-mail: Ouyangyz@sohu.com
Supported by:
The National Natural Science Foundation of China(41804011);The National Natural Science Foundation of China(41706111);The National Major Development Program of China(2016YFC0303007);The National Major Development Program of China(2016YFB0501704);The Great Scientific Instrument Development Project of China(2011YQ12004503);The National Basic Research Program of China(973 Program)(613219)

Abstract

Abstract:

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.

Key words: air-sea gravimetry; technical guides; key indicators; analysis and research; test and evaluation; model modification

Motao HUANG,Kailiang DENG,Taiqi WU,Xiuping LU,Guojun ZHAI,Yongzhong OUYANG,Xin CHEN,Min LIU. Research and Evaluation on Key Technological Indicators for Airborne and Shipborne Gravimetry[J]. Journal of Geodesy and Geoinformation Science, 2019, 2(3): 44-54.

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

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