| 大气负荷对兰新铁路线区域地壳形变及重力变化的影响 |
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| 引用本文： | 张波,杨国林,孙学先,刘涛,安旭伟.大气负荷对兰新铁路线区域地壳形变及重力变化的影响[J].大地测量与地球动力学,2021,41(5):497-500. |
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| 作者姓名： | 张波 杨国林 孙学先 刘涛 安旭伟 |
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| 作者单位： | 兰州交通大学测绘与地理信息学院,兰州市安宁西路118号,730070;地理国情监测技术应用国家地方联合工程研究中心,兰州市安宁西路118号,730070;兰州交通大学测绘与地理信息学院,兰州市安宁西路118号,730070;甘肃省地理国情监测工程实验室,兰州市安宁西路118号,730070 |
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| 摘 要： | 使用兰新铁路线周边区域2012~2017年的全球大气模型和区域气象站气压数据，根据大气负荷理论，采用移去-恢复法计算该区域在6 a间大气负荷对地壳形变和重力变化的影响。结果显示，大气负荷对兰新线区域的垂直形变影响为1 cm左右，对水平形变影响小于2 mm，对垂线偏差影响约为6 ms，对地面重力影响大致为6 μGal；大气负荷对地壳形变和地面重力的影响总体呈现出年周期性和季节性变化。
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| 关 键 词： | 大气负荷 移去-恢复法 地壳形变 地面重力 |
The Influence of Atmospheric Load on the Crust and Gravity Changes in the Lanxin Railway Area |
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| ZHANG Bo,YANG Guolin,SUN Xuexian,LIU Tao,AN Xuwei.The Influence of Atmospheric Load on the Crust and Gravity Changes in the Lanxin Railway Area[J].Journal of Geodesy and Geodynamics,2021,41(5):497-500. |
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| Authors: | ZHANG Bo YANG Guolin SUN Xuexian LIU Tao AN Xuwei |
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| Abstract: | Using the removal-recovery method, the global atmospheric model and the pressure data of regional weather stations in the area around the Lanxin railway from 2012 to 2017, we calculate the influence of atmospheric load on the crustal deformation and gravity change in the 6 year period according to the atmospheric load theory. The results show that atmospheric load has an impact of about 1 cm on the vertical deformation of the Lanxin railway area, and less than 2 mm on the horizontal deformation. The impact on the vertical deviation is roughly 6 ms; on the ground gravity, the impact is roughly 6 μGal. The influence of atmospheric load on crustal deformation and ground gravity shows annual periodic and seasonal changes. |
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| Keywords: | atmospheric pressure load removal-recovery method crustal deformation gravity over the earth surface |
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