Acta Geodaetica et Cartographica Sinica >

2014 , Vol. 43 >Issue 10: 1019 - 1024

DOI: https://doi.org/10.13485/j.cnki.11-2089.2014.0144

Band-limited Direct Topographical Effects of Horizontal Components in Airborne Vector Gravimetry

  • ZHOU Boyang LUO Zhicai NING Jinsheng ZHONG Bo
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  • 1. Department of Surveying and Mapping, Guangdong University of Technology
    2. School of Geodesy and Geomatics, Wuhan University
    3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing
    4. Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan University

Received date: 2013-12-05

  Revised date: 2014-03-14

  Online published: 2014-10-24

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Abstract

Based on the series-expanded expression of Helmert’s 2nd condensation method, formulae of band-limited direct topographical effect of horizontal components in airborne vector gravimetry are deduced independently. Using a digital elevation model, direct topographical effects of the horizontal components are computed based on the analytical kernel along selected flight lines in western area of China with flight height of 4000m, these values are processed by low-pass filter and compared to values computed by the band-limited formulae. It turns out that both topographical effects have a good consistence, and the band-limted formulae can be used for topography reduction for horizontal components of airborne vector gravimetry.

Key words： airborne vector gravimetry; horizontal components; band-limited direct topographical effect; Helmert’s 2nd condensation method

Cite this article

ZHOU Boyang LUO Zhicai NING Jinsheng ZHONG Bo . Band-limited Direct Topographical Effects of Horizontal Components in Airborne Vector Gravimetry[J]. Acta Geodaetica et Cartographica Sinica, 2014 , 43(10) : 1019 -1024 . DOI: 10.13485/j.cnki.11-2089.2014.0144

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