Analysis on Temperature and Precipitation Characteristics in Benxi City of Liaoning in Last 57 Years

Based on data of Benxi station,selcting temperature and precipitation as main indicators,the climate change during 1955-2011 was analyzed by adopting linear trend estimation and accumulative anomaly method.The results indicated that in recent 57 years,temperature in Benxi City is mainly increased,and is most obvious in winter;with 1988 as the sector,two stages were divided,namely relative cold period during 1955-1988 and relative warm period during 1989-2011.The precipitation showed lightly decreasing trend in summer and winter and obvious decreasing trend in autumn.