| 大气负荷效应对浙江地区的影响分析 |
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| 引用本文： | 刘 宇,李爱勤,俞志强,吉渊明,章传银.大气负荷效应对浙江地区的影响分析[J].大地测量与地球动力学,2020,40(6):591-595. |
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| 作者姓名： | 刘 宇 李爱勤 俞志强 吉渊明 章传银 |
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| 作者单位： | 山东科技大学测绘科学与工程学院;中国测绘科学研究院;浙江省测绘科学技术研究院 |
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| 基金项目： | 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)。 |
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| 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。
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| 关 键 词： | 大气负荷 格林函数 球谐函数 移去-恢复法 地壳形变 |
Analysis of the Impact of Atmospheric Load Effect on Zhejiang Province |
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| LIU Yu,LI Aiqin,YU Zhiqiang,JI Yuanming,ZHANG Chuanyin.Analysis of the Impact of Atmospheric Load Effect on Zhejiang Province[J].Journal of Geodesy and Geodynamics,2020,40(6):591-595. |
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| Authors: | LIU Yu LI Aiqin YU Zhiqiang JI Yuanming ZHANG Chuanyin |
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| Institution: | (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) |
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| Abstract: | 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 12 μGal. The influence of vertical deviation is small, and the atmospheric load has obvious annual periodicity and seasonality. |
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| Keywords: | atmospheric load Green’s function spherical harmonic function removal recovery method crustal deformation |
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