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Effects of El Nino Southern Oscillation on the Discharge of Kor River in Iran
Author(s) -
Morteza Mohsenipour,
Shamsuddin Shahid,
M. J. Nazemosadat
Publication year - 2013
Publication title -
advances in meteorology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 32
eISSN - 1687-9317
pISSN - 1687-9309
DOI - 10.1155/2013/846397
Subject(s) - climatology , el niño southern oscillation , discharge , drainage basin , forcing (mathematics) , structural basin , geography , environmental science , hydrology (agriculture) , geology , cartography , geomorphology , geotechnical engineering
The objective of the study was to investigate the El Nino forcing on the discharge of Kor River located in Maharloo-Bakhtegan basin in the Fars province of Iran. Thirty-one-year (1965–1995) and twenty-year (1975–1995) monthly mean river discharge data recorded at two stations, namely, Chamriz and Dehkadeh-Sefid, respectively, were chosen in the present study. Fourier analysis was used to extract harmonic information of time series data such as amplitude and phase angle to show the maximum effect and the time of effect of El Nino on river discharge. The study revealed that El Nino events caused increase of discharge in Kor River by 15% to 20% and the maximum influence was in the months of February and March in El Nino years.

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