| 微波高度计测高的大气订正新算式 |
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| 引用本文： | 陈洪滨,吕达仁,刘锦丽.微波高度计测高的大气订正新算式[J].大气科学,1995,19(3):339-346. |
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| 作者姓名： | 陈洪滨 吕达仁 刘锦丽 |
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| 作者单位： | 中国科学院大气物理研究所,北京 100029 |
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| 基金项目： | 本文获航天技术有关项目和国家自然科学基金委项目49185008和49275239的联合资助；本文第一作者还获得了博士后专项基金资助 |
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| 摘 要： | 为了获得较为精确的微波高度计测量，必须进行大气订正。本文选用雅浦、关岛、广州和上海四站的探空资料，精确地计算了分别由干空气和水汽造成的订正值。在此基础上我们使用回归方法建立了干空气和水汽订正的新算式。将我们的新算式与他人的算式比较分析表明，我们的水汽订正算式是普适的；干空气订正项需考虑地理气候因素；本工作的定量结果比已发表的其他工作结果具有更高的精度。
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| 关 键 词： | 微波高度计 干空气订正 水汽订正 |
New Algorithms of Atmospheric Correction for The Altimeter Height Measurements |
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| Chen Hongbin,Lu Daren and Liu Jinli.New Algorithms of Atmospheric Correction for The Altimeter Height Measurements[J].Chinese Journal of Atmospheric Sciences,1995,19(3):339-346. |
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| Authors: | Chen Hongbin Lu Daren and Liu Jinli |
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| Abstract: | In order to obtain high-precision altimeter height measurements, the atmospheric path delay correction is required. In this study, the exact values of dry and wet path delay are calculable by using the radiosonde data in four selective stations (Yap, Guam, Guangzhou, and Shanghai). Based on these calculation results, the algorithms for both dry and wet path correction are obtained by the regrpesion method. The comparison of our algorithms with Saastamoinen and Lipes models shows that: (1)our wet correction algorithm is universal, at least applicable in the western Pacific region, (2)the dry correction algorithm has to be established individually for each geographic zone; and (3)the new algorithms give better correction results with smaller rms deviation than other models. |
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| Keywords: | microwave altimeter dry air correction wet tropospheric correction |
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