| 整层大气水汽含量与地面水汽压相关性的统计研究 |
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| 引用本文： | 李超,魏合理,刘厚通,周军.整层大气水汽含量与地面水汽压相关性的统计研究[J].武汉大学学报(信息科学版),2008,33(11):1170-1173. |
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| 作者姓名： | 李超 魏合理 刘厚通 周军 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所，中国科学院研究生院 |
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| 基金项目： | 中国科学院知识创新工程项目，中国科学院院长基金 |
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| 摘 要： | 根据合肥站4 a的观测资料,对比分析了整层大气可降水量(precIpitable water vapor,PWV)与地面水汽压(surface vapor pressure,SVP)之间的几种经验关系.统计结果表明,PWV与SVP的对数关系、线性关系和二次曲线关系回归方程的年决定系数普遍大于0.820;二次曲线关系的经验系数随年度变化较明显;线性关系的经验系数则相对具有年度稳定性;二次曲线关系更符合合肥地区的实际情况.
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| 关 键 词： | 可降水量 地面水汽压 经验关系 经验系数 |
Statistics of Correlation of Integrated Water Vapor and Surface Vapor Pressure |
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| LI Chao,WEI Heli,LIU Houtong,ZHOU Jun.Statistics of Correlation of Integrated Water Vapor and Surface Vapor Pressure[J].Geomatics and Information Science of Wuhan University,2008,33(11):1170-1173. |
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| Authors: | LI Chao WEI Heli LIU Houtong ZHOU Jun |
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| Abstract: | On the basis of 981 d observations at Hefei Site during 4 a period,various empirical expressions showing the relationship between precipitable water vapor(PWV) and surface vapor pressure(SVP) based on mean daily values are analyzed.The calculating results show that coefficients of determination for natural logarithm regression,linear regression and second-order polynomial regression are all larger than 0.820;and the yearly variations of the empirical coefficients for linear regression are rather smaller than for second-order polynomial regression.Second-order polynomial relation between PWV and SVP accords with the real condition better than other relations in Hefei region. |
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| Keywords: | PWV SVP correlation coefficient empirical coefficient |
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