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海陆过渡区空地重力数据融合及评价
投稿时间:2020-05-28  修订日期:2020-07-08  点此下载全文
引用本文:张婉,张玄杰,李筱,佟晶,范子梁.2020.海陆过渡区空地重力数据融合及评价[J].地质学报,94(8):2545-2555.
ZHANG Wan,ZHANG Xuanjie,LI Xiao,TONG Jing,FAN Ziliang.2020.Fusion and evaluation of airborne gravity data and ground gravity data in sea land transition zone[J].Acta Geologica Sinica,94(8):2545-2555.
DOI:10.19762/j.cnki.dizhixuebao.2020096
摘要点击次数: 109
全文下载次数: 72
作者单位E-mail
张婉 中国自然资源航空物探遥感中心北京100083 zhangwan102@163.com 
张玄杰 中国自然资源航空物探遥感中心北京100083 zhangxuanjie@163.com 
李筱 中国自然资源航空物探遥感中心北京100083  
佟晶 中国自然资源航空物探遥感中心北京100083  
范子梁 中国自然资源航空物探遥感中心北京100083  
基金项目:本文为中国地质调查局地质调查项目(编号:DD20190210)项目资助的成果。
中文摘要:海陆过渡区是海洋与陆地复合与交叉的地理单元,是资源与环境条件最为优越的地区,将航空重力与地面重力有效融合,形成连续的重力场资料,对海陆过渡区资源与环境评价具有重要意义。本文选择日照—连云港海陆过渡区为示范区,开展了航空重力数据与地面重力数据的融合研究。通过数据整理与对比分析,总结了数据间系统差的确定方法,提出了空地重力数据间一致性与差异性的评估方法,并分别采用剖面和平面两种形式对数据间的一致性和差异性进行了量化评估;在数据量化评估的基础上,采用平面均方根误差法分别对混合法与缝合法的数据拼接质量进行了定量评价,为数据融合方法的选择提供了定量依据。研究结果表明,日照—连云港海陆过渡区航空重力与地面重力数据间剖面上的一致系数为0. 81~0. 99,平面上的一致系数为0. 95,数据间一致性较高,具备较好的数据融合基础;对比试验表明,缝合法对于海陆过渡区空地重力数据融合效果更佳,采用缝合法融合后的重力数据与原始空地重力数据间的均方差分别为2. 63×10 -5 m/s 2 、0. 98×10 -5 m/s 2 ,取得了较好的融合效果。日照—连云港海陆过渡区空地重力数据的融合,为同类地区开展多源重力数据的融合提供了借鉴。
中文关键词:海陆过渡区  地面重力  航空重力  一致性  数据融合
 
Fusion and evaluation of airborne gravity data and ground gravity data in sea land transition zone
Author NameAffiliationE-mail
ZHANG Wan China Aero Geophysical Survey and Remote Sensing Center for Nature Resources, Beijing, 100083 zhangwan102@163.com 
ZHANG Xuanjie China Aero Geophysical Survey and Remote Sensing Center for Nature Resources, Beijing, 100083 zhangxuanjie@163.com 
LI Xiao China Aero Geophysical Survey and Remote Sensing Center for Nature Resources, Beijing, 100083  
TONG Jing China Aero Geophysical Survey and Remote Sensing Center for Nature Resources, Beijing, 100083  
FAN Ziliang China Aero Geophysical Survey and Remote Sensing Center for Nature Resources, Beijing, 100083  
Abstract:The sea- land transition zone is a complex and intersecting geographical unit, and is the area with the most superior resources and environment conditions. It is of great significance to integrate airborne gravity and ground gravity to form continuous gravity field data for resources and environment assessment of sea- land transition zone. In this paper, Rizhao- Lianyungang sea- land transition was selected as the demonstration areato carry out the research on the fusion of airborne gravity data and ground gravity data.Through data sorting and comparative analysis,the determination method of system difference between data is summarized, and anevaluationmethod of consistency and difference between airborne gravity and ground gravity is put forward, and the consistency and difference between data are quantitatively evaluated in two forms of section and plane respectively;Base on the quantitative evaluation of data, plane root mean square error method is used to evaluate the blend method and suture method respectively, which provides a quantitative basis for the selection of data fusion methods.The research results show that the airborne and groundgravity data in Rizhao- Lianyungang area have good consistency. The consistency coefficient range is 0.81~0.99 in profile, and the consistency coefficient is 0.95 on the surface.The comparative test shows that the seam method is better for the air ground gravity data fusion in the sea land transition area, and the gravity number after seam fusion is adopted. The standard deviation between the fusion data and the original airborne gravity data is 2.63×10 -5 m/s 2 ,and standard deviation between the fusion data and the original ground gravity data is 0.98×10 -5 m/s 2 ,which achieves good good fusion effect. The airborne gravity and ground gravity data fusion in Rizhao- Lianyungang sea land transition area provides a reference for similar areas to carry out multi- source gravity data fusion.
keywords:sea- land transition zone  airborne gravity  ground gravity  consistency  data fusion
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