干旱区生态环境知识资源中心(Arid): CMIP5模式对西北干旱区典型流域气温模拟能力评估以开都-孔雀河为例

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	CMIP5模式对西北干旱区典型流域气温模拟能力评估以开都-孔雀河为例
其他题名	Evaluation of air temperature of the typical river basin in desert area of Northwest China by the CMIP5 models:A case of the Kaidu-Kongqi River Basin
	李晓菲; 徐长春; 李路; 罗映雪; 杨秋萍; 杨媛媛
来源期刊	资源科学
ISSN	1007-7588
出版年	2019
卷号	41 期号:6 页码:1141-1153
中文摘要	西北干旱区水资源问题突出,全球变暖将进一步加剧其水资源短缺,研究未来气候变化对流域水资源合理分配和使用具有重要意义。本文利用CRU(Climate Research Unit)数据和DCHP(Downscaled CMIP3and CMIP5Climate and Hydrology Projections)提供的32个经BCSD降尺度的CMIP5(全球耦合模式比较计划第五阶段)模式气温数据,采用线性倾向估计、滑动平均、M-K(Mann-Kendall)检验及滑动T(MMT)等检验法,以西北干旱区典型流域开都-孔雀河流域为例,通过对19502005年的年平均气温、年平均最高气温与年平均最低气温3个指标的变化趋势及突变年份进行检测,评估各模式及模式集合平均对气温变化的模拟能力。研究结果表明:①12个模式能够准确模拟出19502005年流域内各气温指标的显著增加趋势,8个模式能够模拟出部分气温指标的增温趋势,但均低估了增温速率,集合平均也存在同样问题;②除FIO-ESM与MPI-ESM-MR能够准确模拟出气温突变时间外,绝大多数模式不能够准确模拟出。基于优选模式的集合平均PM-PLS和PM-EE对突变的模拟能力总体上优于单个模式,其中PM-PLS模拟能力更优;③对PM-PLS模式集合平均进一步评价,发现其能较好地再现流域气温线性趋势的时空变化总体特征,但仍存在增温速率低估的问题。采用气候模式进行未来气候预估仍需加强模式优选及多模式集合平均方法的深入研究。
英文摘要	Global warming will result in serve water shortage,aggravating the existing outstanding water problem in the Kaidu- Kongqi River Basin.Studies on the future climate change will contribute to the rational distribution and utilization of water in the basin.Based on the CRU(Climate Research Unit) dataset and 32 BCSD-downscaled CMIP5 model air temperature dataset from DCHP (Downscaled CMIP3 and CMIP5 Climate and Hydrology Projections),the paper assessed the simulation ability of both 32 models and multi-model ensemble mean through the test of long-term trend and abrupt change of annual average,maximum and minimum air temperature in the Kaidu- Kongqi River Basin over the period of 1950- 2005 by using the methods of linear trend calculation,moving average,Mann-Kendall (M-K) test and moving T- test (MMT).Results show that (1) 12 of 32 models are capable of reproducing the significant warming trend of three temperature indicators during 1950- 2005,8 of 32 models can only simulate that of some temperature indicators,but all of them underestimate the warming rate,so does the multi- model ensemble mean.(2) Most models failed to simulate the time of abrupt change accurately except two,FIO-ESM and MPI-ESM-MR.The ensemble mean of preferred models,PM-PLS and PM-EE,are superior to the individual model in simulating abrupt change.Between them,PM-PLS is better.(3) The further evaluation indicates that the multi-model ensemble PM-PLS can better capture the linear trend of spatio-temporal characteristics,but the problem of underestimating the warming rate still exists.It appeals to strengthen the study of model optimum selection and multiple models assemble in the future climate prediction using climate models.
中文关键词	气温 ; 泰勒图 ; 多模式集合平均 ; 突变检验 ; 开都-孔雀河流域
英文关键词	Mann-Kendall air temperature Taylor diagram multi-model ensemble mean Mann-Kendall abrupt change Kaidu-Kongqi River Basin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6525251
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239861
作者单位	新疆大学资源与环境科学学院;;新疆大学, ;;绿洲生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐, ;; 830046;;830046
推荐引用方式 GB/T 7714	李晓菲,徐长春,李路,等. CMIP5模式对西北干旱区典型流域气温模拟能力评估以开都-孔雀河为例[J],2019,41(6):1141-1153.
APA	李晓菲,徐长春,李路,罗映雪,杨秋萍,&杨媛媛.(2019).CMIP5模式对西北干旱区典型流域气温模拟能力评估以开都-孔雀河为例.资源科学,41(6),1141-1153.
MLA	李晓菲,et al."CMIP5模式对西北干旱区典型流域气温模拟能力评估以开都-孔雀河为例".资源科学 41.6(2019):1141-1153.