Application of EGM2008 Earth&rsquo;s Gravity Field Model in North Jinshan Mine Elevation Control Survey

YE Pei

doi:10.3969/j.issn.1005-2518.2014.01.069

Gold Science and Technology >

2014 , Vol. 22 >Issue 1: 69 - 73

DOI: https://doi.org/10.3969/j.issn.1005-2518.2014.01.069

Application of EGM2008 Earth’s Gravity Field Model in North Jinshan Mine Elevation Control Survey

YE Pei

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No.12 Gold Geological Party of CAPF，Chengdu 611732，Sichuan，China

Received date: 2013-10-30

Revised date: 2013-12-04

Online published: 2014-06-25

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Abstract

The public data of EGM2008 Earth Gravity Field Model from National administration of surveying， mapping and geo-information is used in measuring and balancing the elevation control survey data of Beijinshan gold deposit.Two measurement methods（GPS control survey and conventional optical leveling） and three common gravity field model（DQM94a，EGM96 and EGM2008） are used in the study，and we compared its effect by three different methods，which are ECEF，error ellipse component and ellipse equilibrium diagram.The results show that the height accuracy of EGM2008 Earth’s gravity field model is 6.9 cm in Beijinshan gold deposit，EGM2008 Earth’s gravity field model has a higher accuracy than the traditional gravity model EGM96 and DQM94，the efficiency and accuracy is better than conventional lead levels，EGM2008 Earth’s gravity field model is proved suitable for mine surveying work of mountainous areas of Southern Gansu.

Key words： EGM2008; EGM96; DQM94a; GPS; error ellipse; height accuracy; leveling; Beijinshan gold deposit; Gansu Province

Cite this article

YE Pei . Application of EGM2008 Earth’s Gravity Field Model in North Jinshan Mine Elevation Control Survey[J]. Gold Science and Technology, 2014 , 22(1) : 69 -73 . DOI: 10.3969/j.issn.1005-2518.2014.01.069

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