The Trend Analysis and Forecasting of Extreme Temperature Parameters in southern part of the Caspian Sea

The increase of earth temperature causes anomalies in the earth climate that this affair is itself affective on all the aspects of human life. In this context, the aim of this study was to consider the temperature changes and predict the extreme temperatures in Guilan and Mazandaran Provinces. The SDSM statistical and dynamical model is used and also for analyze the temperature changes and trends has been used the Mann-Kendal graphical and statistical technique. In this regard, the daily data of Rasht, Ramsar and Babolsar stations temperature were produced during the statistical period of 1961 to 2010 from Meteorological Organization and also the general circulation models data of HadCM3 and NCEP were taken of related database.The results revealed a significant positive trend in monthly and annual minimum and maximum temperature in all three stations in the first and third priod. Also in the second period, there is not a significant trend in extreme temperatures in Ramsar and maximum temperature in Rasht. The Mann-Kendal graphical test was done on the yearly extent temperatures of 3 periods and its results showed that by not reminding the critical border of 1/96 in the level of 95 percent assurance of changes of increase recess kind and also sudden changes has been occurred in all stations. In the forecast period, is seen the highest of changes in monthly and annual of the minimum temperature.The increase of extreme temperature was predicted about 0/1 to 1/7 centigrade. The short time oscillations and meaningful positive trend happenings in both of the maximum and minimum temperature shows the temperature increase in the future years that this indicates occurred climate changes.