%0 Journal Article %T Identify Tele-connection Patterns affecting on Rainfall in Karoon Basin %J Iranian journal of Ecohydrology %I Faculty of New Sciences and Technologies, University of Tehran %Z 2423-6098 %A Rahimi, Dariush %A Abdollahi, Khodayar %A Hasheminasab3, Sadat %D 2016 %\ 03/20/2016 %V 3 %N 1 %P 95-105 %! Identify Tele-connection Patterns affecting on Rainfall in Karoon Basin %K Rainfall regime %K Scandinavia index %K ENSO %K Tele-connection %K Karoon Basin %R 10.22059/ije.2016.59193 %X The Tele-connection patterns are the major constituents of climate at global and regional scale(s). The Karoon Basin is of a vital stance in providing natural water supply and hydroelectric; this basin is facing major fluctuations in rainfall regime. Identifying the effect of Tele-connection on great Karoon Basin rainfall regime is the subject of this study. To accomplish this objective the seasonal-annual rainfall volumes recorded at stations related to this basin are assessed for the period of (1956-2012) through 12 Tele-connection patterns. The method applied here is the data analysis through correlation statistical techniques and analysis of the main climatic components. In this basin, 49.7% of precipitation is of the winter followed by autumn with 34.9% and spring with 14.9%. The findings of the analysis indicate that the precipitation in autumn is influenced mostly by NINO4, NINO1+2, NINO3.4 and SOI patterns. The analysis of winter and spring precipitation reveals the influence of SCAN+ phase on both these seasons. The precipitations of the basin do have a harmonized change pattern with Tele-connection pattern by addressing the delay time. It is deduced that these indicators can contribute to moist and dry cycle’s occurrence when the planning regarding this basin is of concern.       %U https://ije.ut.ac.ir/article_59193_53ee8a9d9a6cb6ce82ffee1a659998db.pdf