摘要
文章利用内蒙古107个气象站Tmean、Tmax和Tmin的逐月观测数据,对比分析了近54a(1961—2014年)和CWH时期(1998—2014年)的Tmean、Tmax和Tmin分别在年、季、月尺度上的变化特征,初步探讨了内蒙古气温变化是否也有减缓或停滞现象,结果表明:全球气候变暖减缓背景下,1998—2014年内蒙古气温变化存在一定程度的变暖减缓现象。年尺度上,气温响应最明显的是Tmax,Tmean次之,Tmin最小;空间分布上,内蒙古东部地区的响应相对较大,中部次之,西部最小,但响应均不显著;季节尺度上,虽然春、冬季的气温呈下降趋势,但四季气温的响应也均不明显;月尺度上,2月气温响应最明显,其次是9月。1998—2014年内蒙古年平均气温的下降趋势主要是由春、冬两季降温引起的,而冬季气温的下降趋势主要是由2月明显降温引起的。
This paper uses the monthly observation data including average temperature(Tmean),maximum temperature(Tmax)and minimum temperature(Tmin)of 107 meteorological stations in Inner Mongolia to compare and analysis the characteristics of Tmean,Tmax and Tmin between nearly 54 years(1961-2014)and CWH period(1998-2014)on the annual,seasonal and monthly scales,and preliminary discussion on whether temperature changes in Inner Mongolia have also mitigated or stagnated.The results show that under the background of global warming slowdown,there is a certain degree of warming mitigated in the temperature change in the Inner Mongolia from 1998 to 2014.On the annual scale,the most obvious temperature response is Tmax,followed by Tmean and Tmin.In terms of spatial distribution,the response in eastern Inner Mongolia is relatively large,followed by the central region and the smallest in the western region.But all responses are not significant.On the seasonal scale,although the temperature in spring and winter shows a declining trend,the response of four seasons was not obvious as well.On the monthly scale,the temperature response in February was the most obvious,followed by September.The annual average temperature decline mainly caused by significant cooling in spring and winter,while the declining trend of winter temperature is mainly caused by the obvious cooling in February of the Inner Mongolia from 1998 to 2014.
作者
孟玉婧
Meng Yujing(Inner Mongolia Climate Center,Inner Mongolia Hohhot 010051)
出处
《内蒙古气象》
2020年第1期19-22,共4页
Meteorology Journal of Inner Mongolia
关键词
全球气候变暖停滞
气温
变化特征
内蒙古
Global climate warming hiatus
Temperature
change characteristic
Inner Mongolia
