Identifying the Trend of Temperature Changes in the South Iranian Coasts and its Relationship with Teleconnections

The aim of this study was to investigate temperature series trend in the southern coasts of Iran and its relationship with telecconections patterns. In this regard, the minimum and maximum monthly temperature statistics of the Persian Gulf coastal stations during the period 2019-1988 and the statistics of telecconections patterns during the same period were used. Homogeneity and commercialization of data were assessed using Chi-square and Anderson Darling tests and their trend was assessed by t-test and I-Kendall tests. Then, their correlation with remote linking patterns was determined by Pearson correlation test and multivariate regression. The results showed that except for the minimum temperature of Abu Musa and the maximum temperature of Bushehr, which were without trend in most months, there was an increasing trend in other months and stations. The maximum temperature in March and the minimum temperature in July have increased in all stations. In general, the minimum temperature shows a higher upward trend than the maximum temperature. The results of the relationship between tleconnection patterns and temperature series indicate a direct and significant correlation at both 95 and 99% levels and the high impact of WHWP and AMO patterns on the studied temperature series. In other words, the patterns located in the North Atlantic and the tropics have the greatest effect on the minimum and maximum temperatures of the southern coasts of Iran.