摘要
通过对陕西50多年来气象资料和历史资料的搜集和整理,从陕南、关中、陕北三个不同的区域研究厄尔尼诺/拉尼娜(El Nino-Southern Oscillation,ENSO)事件对陕西气候的影响.通过对降水量、气温、自然灾害事件等气候因子与ENSO事件的特征进行对比统计分析,揭示了ENSO事件与陕西气候变化的相关关系.结果表明:ENSO事件对陕西气候的影响存在从陕南到关中再到陕北逐渐增强的趋势;ENSO事件的发生对该区不同地域气温和降水的影响显著;ENSO暖事件(厄尔尼诺事件)增温且降水减少,ENSO冷事件(拉尼娜事件)降温且降水增加;ENSO暖事件对陕西气候特别是自然灾害的影响比ENSO冷事件更为显著和强烈.
Based on the meteorological data and historical data of more than 50 years in Shaanxi province,the influence of ENSO events on the climate from three different areas which are Shaannan,Guanzhong and Shaanbei region in Shaanxi province was studied.Through making statistical analysis of the relationship between precipitation,temperature,natural disaster events and the ENSO events,the correlation between ENSO events and the climate of Shaanxi province was revealed clearly.The results showed that the influence of ENSO events on the climate from Shaannan to Guanzhong to Shaanbei in Shaanxi province presented a rising trend;ENSO events happened in different regions had significant effects on the temperature and precipitation of Shaanxi;ENSO warming events（El Nino events） showed the warm climate and the reduced precipitation,ENSO cold events（La Nina events） showed the cool climate and the increased precipitation;ENSO warming events had more significant and stronger influences on the climate especially the natural disasters in Shaanxi than that of the ENSO cold events.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第5期98-104,共7页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(40571004)
教育部人文社科研究基地重大招标项目(05jjd770014)
关键词
厄尔尼诺/拉尼娜
气候
降水量
温度
气象灾害
El Nino-Southern Oscillation
climate
precipitation
temperature
meteorological disasters
