Relationship between ENSO Events and the Climate during 1955-2008 in Shanxi,China

Based on the meteorological data during 1955-2008 from ten meteorological stations in the Shanxi Province,we studied the relationship between precipitation,temperature and the ENSO events,analyzed the effect of the ENSO events on climate change in the study region.Results showed that the ENSO events variation presented fluctuation characteristics and the fluctuation amplitude was relatively large after 1980.The variation of the ENSO events can be divided into two stages from 1955 to 2008.The frequency of the ENSO cold events was slightly higher and its strength was greater than that of the ENSO warm events in the first stage from 1955 to 1980,and the frequency of the ENSO warm events was higher and its strength was greater than that of the ENSO cold events in the second stage from 1981 to 2008.The effects of the ENSO events on precipitation and temperature were very significant in Shanxi Province.The annual precipitation was significantly low in the year when the ENSO warm events occurred,and the precipitation increased significantly or achieved peak value in the next year.The precipitation increased significantly when the ENSO cold events occurred.The temperature was high when the ENSO warm events occurred,and the temperature was low when the ENSO cold events occurred.