Literature Review on the Connection Between Iran’s Climate and Teleconnection in the Period of 1999 to 2014

Considering the obvious effects of the large-scale climatic signals on the global climate, numerous studies have been carried out to clarify the types of these effects in many countries. Most of these studies have concluded to a meaningful connection between large-scale signals and the climatic parameters. The main objectives of many studies in Iran are about this topic too. The focus of present study is to investigate the researches in the period of 1999 to 2014 conducted in Iran. The results will lead us to recognize not only the procedure of all studies in mentioned period, but also the type of the connection between these signals and the climatic features in Iran. To achieve this goal, 58 studies were investigated and categorized in 102 classes regarding to the types of the signals. These results represented that the main focus of these studies are on SOI by 29% and NAO by 21%. The most of them showed that Iran’s climate is influenced by NAO and southern oscillation. For instance, most of the studies proved that El-Nino causes wetness and La-Nina leads to drought. Nevertheless, it is impossible to claim that one specific signal plays the significant role in Iran’s climate by itself.