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干旱区地理 ›› 2018, Vol. 41 ›› Issue (5): 972-983.doi: 10.12118/j.issn.1000-6060.2018.05.09

• 气候与水文 • 上一篇    下一篇

三个全球气候模式对中国气温季节变化模拟能力的空间差异特征分析

卢晓菲1, 任传友1, 王艳华1, 崔凤茜1, 芦晓彤1,2, 宫诏健1,3   

  1. 1 沈阳农业大学农学院大气科学系, 辽宁 沈阳 110866;
    2 辽阳市气象局, 辽宁 辽阳 111000;
    3 营口经济技术开发区气象局, 辽宁 营口 115007
  • 收稿日期:2018-04-22 修回日期:2018-06-18 出版日期:2018-09-25
  • 通讯作者: 任传友,男,博士,副教授.E-mail:renchuanyou0421@sina.com.cn;王艳华,女,博士,讲师.E-mail:yanhuawang999@sina.com.cn
  • 作者简介:卢晓菲(1992-),女,辽宁省沈阳市,硕士研究生,研究方向为应用气候.E-mail:501305863@qq.com
  • 基金资助:
    国家重点研发计划项目课题(2016YFD0300103);中国气象局沈阳大气环境研究所中央级公益性科研院所基本科研业务费专项资金项目(2016SYIAEZD1)

Spatial difference characteristics on simulation capability of seasonal variation of air temperature simulated by three global climate models in China

LU Xiao-fei1, REN Chuan-you1, WANG Yan-hua1, CUI Feng-qian1, LU Xiao-tong1,2, GONG Zhao-jian1,3   

  1. 1 Department of Atmospheric Sciences, Agronomy College, Shenyang Agricultural University, Shenyang 110866, Liaoning, China;
    2 Liaoyang Meteorological Bureau, Liaoyang 111000, Liaoning, China;
    3 Yingkou Economic-Technological Development Area Meteorological Bureau, Yingkou 115007, Liaoning, China
  • Received:2018-04-22 Revised:2018-06-18 Online:2018-09-25

摘要: 针对第五次国际耦合模式比较计划(CMIP5)中3个全球气候模式对中国气温季节变化模拟能力的空间差异特征进行具体分析。结果表明:BCC-CSM1.1(m)模式和GFDL-CM3模式能够再现中国气温的季节性变化,在中国东部地区模拟能力较强,平均绝对误差和均方根误差均较小,在中国西部地区模拟能力较弱,平均绝对误差和均方根误差较大。与BCC-CSM1.1(m)和GFDL-CM3模式相比,HADGEM2-ES模式再现中国地区气温季节变化的能力最弱,平均绝对误差和均方根误差在西部部分地区、内蒙古地区和东北地区较大,在华南地区南部较小。在相同模式下,日平均气温模拟效果最好,其次是日最低气温,日最高气温模拟效果最差。纬度、经度、海拔和坡度对气候模式模拟效果的影响存在模式间的差异,而坡向和地形遮蔽度对模式的模拟效果无明显影响。

关键词: 全球气候模式, 气温, 空间差异

Abstract: The climate system model is an important tool for studying the mechanism of climate change and predicting future climate change.Due to the extreme complexity of the climate system,there may be some errors and limitations in simulating the climate.Therefore,it is necessary to evaluate the simulation capability of climate models.Nowadays,many researches have been done on the assessment of climate system modeling temperature capability and the prediction of future temperature changes.However,there is no report on the relationship between climate modeling capacity to simulate the seasonal variation of air temperature and some influencing factors.Therefore,this paper analyzes the spatial difference characteristics of simulation capability of air temperature in China,using BCC-CSM1.1(m),GFDL-CM3 and HADGEM2-ES global climate models from the Coupled Model Inter-comparison Project Phase 5 (CMIP5),based on the daily mean temperature,maximum temperature and minimum temperature data obtained from 663 conventional meteorological stations in China during the time period from 1951 to 2004.The simulation capability of three models are verified by using the observational air temperature data,and its relationships are discussed with latitude,longitude,elevation,slope,aspect and terrain obscuration (slope,aspect and terrain obscuration are obtained from 500 m×500 m digital elevation model).The results showed that the BCC-CSM1.1(m) and GFDL-CM3 model can reproduce the seasonal variation of air temperature in China.The mean absolute error and root mean square error of daily mean temperature and daily minimum temperature simulated by models are smaller in Northeast China,North China,South China and East China,the simulation capability is stronger than those in the other areas.However,in Western China,the simulation capability is relatively weak characterized by large mean absolute and root mean square errors.Compared with the daily mean and minimum temperature,the mean absolute error and root mean square error of daily maximum temperature simulated by models are larger in North China and Northeast China.The capability of reproducing the seasonal variation of air temperature in China from HADGEM2-ES model is the weakest if compared with the results from the BCC-CSM1.1(m) and the GFDL-CM3 models,and its mean absolute error and root mean square error were increased from south to north with larger errors in parts of Western China,Inner Mongolia and Northeast China,and smaller errors in the southern part of South China.For the three models,BCC-CSM1.1(m) model is the best in the simulation of the air temperature in China,followed by the GFDL-CM3 and HADGEM2-ES models.For each model,the simulation of the daily mean temperature is the best,followed by the daily minimum temperature,and the daily maximum temperature is the worst.The latitude,longitude,altitude and slope have different influences on the simulation effect of climate models among different models.The BCC-CSM1.1(m) and the GFDL-CM3 models have high simulation capability in low and high latitudes,low longitude,low slope and areas of an altitude less than 2 000 meters.The HADGEM2-ES model has high simulation capability in low latitude areas and 112°E nearby areas.The aspect and terrain obscuration have no significant impact on the simulation effect of climate models.

Key words: global climate models, air temperature, spatial difference

中图分类号: 

  • P467