A Comparative Study of Atmospheric Moisture Recycling Rate Between Observations and Models
A Comparative Study of Atmospheric Moisture Recycling Rate Between Observations and Models
复制标题
大气水分回收率观测与模型比较研究
DOI：
10.1175/jcli-d-17-0421.1
复制
发表时间：
2018
影响因子：
4.9
通讯作者：
Y. Yung
中科院分区：
文献类型：
--
作者：
A. Kao;Xun Jiang;Liming Li;J. Trammell;G. Zhang;H. Su;J. Jiang;Y. Yung
摘要利用13个CMIP 5模式的降水和水汽资料及观测资料，分析了1988 - 2008年大气水汽循环率。观测和模式模拟的比较表明，大多数CMIP 5模式捕捉到了循环率的两个主要特征：（1）全球平均海洋循环率（60°S-60°N范围内海洋上空的大气循环率）的长期下降趋势;（2）循环率时间变化的主要空间模式（即，在热带辐合带中增加，在副热带地区减少）。除一个模式外，所有模式都成功地模拟了水汽柱的长期趋势和年际变化。对降水的模拟效果相对较差，尤其是在相对较短的时间尺度上，这就导致了CMIP 5模式与观测结果在再循环率上的差异。空间格局的比较还表明，CMIP 5模型的…
AbstractPrecipitation and column water vapor data from 13 CMIP5 models and observational datasets are used to analyze atmospheric moisture recycling rate from 1988 to 2008. The comparisons between the observations and model simulations suggest that most CMIP5 models capture two main characteristics of recycling rate: (1) long-term decreasing trend of global-average maritime recycling rate (atmospheric recycling rate over ocean within 60°S-60°N) and (2) dominant spatial patterns of the temporal variations of recycling rate (i.e., increasing in the Intertropical Convergence Zone and decreasing in sub-tropical region). All models except one successfully simulate not only the long-term trend but also inter-annual variability of column water vapor. The simulations of precipitation are relatively poor especially over the relatively short time scales, which lead to the discrepancy of recycling rate between the observations and the CMIP5 models. Comparisons of spatial patterns also suggest that the CMIP5 models s...
影响因子：
6.7
作者：
Allan, Richard P.;Soden, Brian J.;Good, Peter
通讯作者：
Good, Peter