14 مرداد 1399
مريم بيات وركشي

مریم بیات ورکشی

مرتبه علمی: استادیار
نشانی: m.bayat.v@malayeru.ac.ir
تحصیلات: دکترای تخصصی / خاکشناسی-منابع آب
تلفن:
دانشکده: کشاورزی

مشخصات پژوهش

عنوان
The Impact of ENSO on Ground Water Variability in Iran
نوع پژوهش مقاله ارائه شده
کلیدواژه‌ها
Groundwater table, ENSO, El Nino, La Nina, Iran, Teleconnection
سال
2016
پژوهشگران مریم بیات ورکشی

چکیده

In this study, the impact of ENSO atmospheric and oceanic phenomenon on the groundwater table (GWT) changes was investigated using the Southern Oscillation Index (SOI) in Iran. For this purpose the information of 30 piezometeric wells selected from different points of the country were used. Pearson correlation analysis conducted on relationship between SOI and GWT. Results showed that minimum GWT changes occurred in La Nina phase at 37 % of stations. On the contrary, the maximum GWT changes occurred in El Nino phase at 80% of the stations. Application of Pearson correlation analysis revealed that a negative correlation exists between SOI and GWT fluctuations at more than 93% of the stations. Furthermore, variation of GWT in La Nina phase to neutral phase was 207.3 % which was comparable with 6.8% for the average GWT changes in El Nino phase to neutral phase. Results showed that the percentage changes of GWT in La Nina phase is more than El Nino phase.