水土保持通报2012,Vol.32Issue(4):97-101,5.
厄尔尼诺/拉尼娜事件对山西省北部地区气候的影响
Effects of El Nino/La Nina Events on Climate of Northern Shanxi Province
摘要
Abstract
Based on the meteorological and historical data of the past 50 years in Northern Shanxi Province, the influence of ENSO(E1 Nino--Southern Oscillation)events on the climate of Northern Shanxi Province was studied. The results show that both annual total precipitation and annual average temperature decreased at the years of ENSO warming events(E1 Nino events) comparing to the normal years. In the areas of Datong, Suzhou~ and Qizhou City, annual total precipitation decreased for 46.83, 46.44, and 80.96 ram, and annual average temperature were reduced for 0.03, 0. 17, and 0.22 ~C, respectively. Similarly, both annual total precipitation and annual average temperature were lower, but less intensively, at the years of ENSO cold events(La Nina events) than the normal years. The annual total precipitation was 21.27, 26.32, and 25.30 mm lower, and annual average temperature was 0.03, 0.18, and 0.04 ~C lower, respectively in the three re- gions. The annual average temperature of the sudy area changed in a direction opposite to that of the Loess Plateau in the years of E1 Nino events. The influence of ENSO warming events on the temperature represen- ted an ascending trend as in the order of regions: Datong City~ Shuozhou City~ Xinzhou City, as the lati- tudes of the areas decreased. The ENSO warming events imposed a similar effect on annual total precipitati- on, increasing the probability of the occurrence of draught disasters and harming the industrial and agricul- tural productions in study area.关键词
厄尔尼诺/拉尼娜/气候变化/影响强度/气象灾害Key words
El Nino/Southern Oscillation/climate change/impact strength/meteorological disasters分类
海洋科学引用本文复制引用
祁子云,赵景波..厄尔尼诺/拉尼娜事件对山西省北部地区气候的影响[J].水土保持通报,2012,32(4):97-101,5.基金项目
教育部人文社会科学基地项目“西北典型地区水环境研究” ()
国家自然科学基金项目“关中平原地区1000年来渭河洪水变化研究” ()