| 全球海平面对大气压变化的响应 |
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| 引用本文： | 闫昊明,朱耀仲.全球海平面对大气压变化的响应[J].地球物理学报,2001,44(3):320-326. |
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| 作者姓名： | 闫昊明 朱耀仲 |
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| 作者单位： | 中国科学院测量与地球物理研究所动力大地测量学开放研究实验室, 武汉430077 |
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| 基金项目： | 中国科学院资环局“九五”重点项目!(KZ952 -S1 -4 0 1 ) |
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| 摘 要： | 利用TOPEX/POSEIDON卫星测高数据来确定海平面对大气压变化全球响应（反变气压计响应）的空间分布和频率特征.采用多元回归方法,得到全球反变气压计响应系数为-085±047cm/hPa.在赤道区域,反变气压计响应受平均气压和经向风的影响比较明显.在全球区域,应用希尔伯特（Hilbert）变换和傅里叶变换两种方法,给出反变气压计响应的周期为30-200天.
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| 关 键 词： | 反变气压计响应 响应系数 频率特征 振幅 |
| 文章编号： | 0001-5733(2001)03-0320-07 |
| 收稿时间： | 2000-03-07 |
RESPONSE OF SEA LEVEL TO VARIATION OF ATMOSPHERIC PRESSURE |
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| YAN HAO MING,ZHU YAO ZHONG.RESPONSE OF SEA LEVEL TO VARIATION OF ATMOSPHERIC PRESSURE[J].Chinese Journal of Geophysics,2001,44(3):320-326. |
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| Authors: | YAN HAO MING ZHU YAO ZHONG |
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| Institution: | Laboratory of Dynamic Geodesy, IGG, Chinese Academy of Sciences, Wuhan 430077, China |
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| Abstract: | Spatial distribution and spectral characteristics of the global Inverted Barometer （IB） response of sea level to variations of atmospheric pressure are studied by using TOPEX/POSEIDON （T/P） data. By means of multi regression method,the IB response coefficient is obtained as 0.85±0.47cm/hPa on globe. The effects of average pressure and meridional wind on IB response are obvious in the tropic areas. The global IB period of 30-200 days has been obtained by using Hilbert and Fourier transfer function. |
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| Keywords: | IB response Response coefficient Spectral characteristics Amplitude |
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