Effects of El Nino/La Nina Events on Climate in Inner Mongolia Autonomous Region

BAI Xiao-juan; ZHAO Jing-bo

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Effects of El Nino/La Nina Events on Climate in Inner Mongolia Autonomous Region

- Effects of El Nino/La Nina Events on Climate in Inner Mongolia Autonomous Region
- Bulletin of Soiland Water Conservation Vol. 31, Issue 6, Pages: 245-249(2012)
- 作者机构：
  
  1. 陕西师范大学旅游与环境学院
  2. 中国科学院地球环境研究所国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
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BAI Xiao-juan, ZHAO Jing-bo. Effects of El Nino/La Nina Events on Climate in Inner Mongolia Autonomous Region[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 245-249.
DOI：

BAI Xiao-juan, ZHAO Jing-bo. Effects of El Nino/La Nina Events on Climate in Inner Mongolia Autonomous Region[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 245-249. DOI：

摘要

通过对内蒙古自治区近50a来气象资料的搜集和整理

分析了1961年以来内蒙古地区的气候变化特点

并对区内降水量、气温、自然灾害事件等因子与厄尔尼诺/拉尼娜事件的相关性进行了研究。结果表明

厄尔尼诺事件发生年内蒙古地区年平均降水量比非ENSO事件年平均减少了31.45mm

拉尼娜事件发生年内蒙古地区年平均降水量比非ENSO事件年平均减少14.69mm

表明ENSO事件具有减少内蒙古地区降水量的明显作用;厄尔尼诺发生年的年平均气温比非ENSO事件年平均气温高出0.12℃

拉尼娜事件发生年的平均气温比非ENSO事件年高出0.22℃

表明ENSO事件具有使内蒙古地区气温升高的作用;ENSO事件的发生增加了内蒙古地区干旱灾害发生的可能性

且厄尔尼诺事件发生年比拉尼娜事件发生年更容易暴发干旱灾害

ENSO事件的发生通常给内蒙古地区农牧业生产带来不利影响。

Abstract

Based on the meteorological data collected in Inner Mongolia Autonomous Region during the past 50 years

we analyzed the characteristics of climate change in Inner Mongolia Autonomous Region since 1961 and attempted to establish the relationship between El Nino/La Nina events and the variables including annual precipitation

temperature and natural disasters.The results showed that compared to the normal years

annual precipitation of the El Nino years was 31.45 mm and that of La Nina years was 14.69 mm less by average

indicating a significant influence by the ENSO events on the regional climate.In contrast

annual temperature increased by an average of 0.12 ℃ in the El Nino years

and by an average of 0.22 ℃ than in the La Nina years

indicating that the ENSO events caused significant warming in the study area.Generally speaking

ENSO events increased the possibility of drought disaster

and moreover

the El Nino years had even higher possibility of drought than the La Nina years.Consequently

El Nino/La Nina events were often unfavorable for the agricultural and animal husbandry production of Inner Mongolia Autonomous Region.

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