厄尔尼诺-拉尼娜事件对新疆环境气候的影响研究

基于近54年发生的厄尔尼诺/拉尼娜事件和新疆气候资料,分析新疆环境气候变化特点表明:1961年以来新疆降水量和气温均呈现明显增加的趋势.厄尔尼诺/拉尼娜事件呈现出起伏波动的特点,且1980年以后波动趋势更为剧烈,厄尔尼诺事件发生强度要大于拉尼娜事件.强厄尔尼诺年极端降水事件增多.厄尔尼诺/拉尼娜事件年对新疆各地区降水、气温影响不同,厄尔尼诺年塔城、阿勒泰北部、巴州北部、南疆西部喀什至和田一带增湿明显,阿勒泰东部、哈密北部升温作用显著.

Influence of El Nino/La Nina Events on Climate of Xinjiang Province

Based on statistics of El Nino/La Nina events and the climate data in historical documents in the recent 54 years, the characteristics of climate change since 1961 in Xinjiang Province were analyzed.The results showed that the annual precipita-tion and temperature was increasing, El Nino events was stronger than/La Nina events.El Nino/La Nina events and annual pre-cipitation were uncorrelated, extreme precipitation events increases during stronger El Nino years.Annual mean temperature in Xinjiang Province was increasing in El Nino events years, and decreasing in/La Nina events years.El Nino/La Nina events years has different influence in each region of Xinjiang Province.During El Nino years, precipitation increasing significantly in Tacheng, north of Altai, north of Baizhou, Kashi-Hetian, East of Altai, north of Hami area.Temperatures in the east of Altai, north of Hami area rise obviously.