摘要
利用全球大气模型及浙江地区气象站数据,依据大气负荷理论,采用移去-恢复法计算大气压引起的区域负荷形变场及重力场变化。结果表明,在浙江地区大气负荷引起的垂直形变达12.1 mm,产生的地面重力变化超过12μGal,对水平形变及垂线偏差影响较小,且大气负荷具有明显的年周期及季节性变化规律。
In this paper,based on the global atmospheric model and the data of Zhejiang regional meteorological station,the load deformation field and the change of gravity field caused by atmospheric pressure are calculated by the method of removing and restoring according to the load theory.The results show that the vertical deformation caused by atmospheric load in Zhejiang province reaches 12.1 mm,and the ground gravity change caused by atmospheric load exceeds 12μGal.The influence of vertical deviation is small,and the atmospheric load has obvious annual periodicity and seasonality.
作者
刘宇
李爱勤
俞志强
吉渊明
章传银
LIU Yu;LI Aiqin;YU Zhiqiang;JI Yuanming;ZHANG Chuanyin(College of Geodesy and Geomatics,Shandong University of Science and Technology,579 Qianwangang Road,Qingdao 266000,China;Chinese Academy of Surveying and Mapping,28 West-Lianhuachi Road,Beijing 100830,China;Zhejiang Institute of Surveying and Mapping Science and Technology,West-Wen’er Road,Hangzhou 310000,China)
出处
《大地测量与地球动力学》
CSCD
北大核心
2020年第6期591-595,共5页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(41674024)
中国测绘科学研究院基本科研业务费(7771806)。
关键词
大气负荷
格林函数
球谐函数
移去-恢复法
地壳形变
atmospheric load
Green’s function
spherical harmonic function
removal recovery method
crustal deformation
