Investigation of the effect of large-scale atmospheric signals at different time lags on the autumn precipitation of Iran's watersheds

J Helali, S Salimi, M Lotfi, SA Hosseini, A Bayat… - Arabian Journal of …, 2020 - Springer
In recent decades, the upgrading of information of human beings about the Earth's climate
and concern about climate change in the future has led to a better understanding of the …

Enhancing references evapotranspiration forecasting with teleconnection indices and advanced machine learning techniques

J Helali, M Mohammadi Ghaleni, A Mianabadi… - Applied Water …, 2024 - Springer
After precipitation, reference evapotranspiration (ETO) plays a crucial role in the
hydrological cycle as it quantifies water loss. ETO significantly impacts the water balance …

Spatiotemporal characteristics of daily precipitation concentration in Iran

F Pazhoh, M Darand - Environment, Development and Sustainability, 2024 - Springer
Precipitation is the most critical atmospheric indicator of Iran's climate, exhibiting significant
variation over time and across different regions. This variability is influenced by terrain …

Correlation analysis of large-scale teleconnection indices with monthly reference evapotranspiration of Iran synoptic stations

J Helali, E Asadi Oskouei - Iranian Journal of Soil and Water Research, 2021 - ijswr.ut.ac.ir
Reference evapotranspiration (ETo) is considered as an important component in the
hydrological cycle and determination of water requirement. In this study, an attempt was …

[PDF][PDF] Investigating the relationship between climate teleconnection indices and autumnal rainfall in Iran watersheds

J Helali, E Pishdad, M Alidadi, S Loukzadeh… - Iranian Journal of Soil …, 2020 - journals.ut.ac.ir
Seasonal and annual precipitation variations are subject to numerous natural and climatic
factors such as climate teleconnection indices (CTIs). The purpose of this study is to …

[PDF][PDF] Evaluation the performance of ERA5 Reanalysis Data in Iran's rainfall, Res

S Heidari - Earth. Sci, 2024 - scj.sbu.ac.ir
Materials and Methods In the present study, the reanalyzed gridded precipitation data
(ERA5) with a resolution of 0.25 x 0.25 was used from the years 1979 to 2021. According to …

بررسی همبستگی بارش‌های پاییزه حوضه‌های آبریز ایران با نمایه‌های دورپیوندی

هلالی, پیشداد, علی دادی, لوک زاده, اسعدی اسکویی… - تحقیقات آب و خاک …, 2020‎ - ijswr.ut.ac.ir
تغییرات بارش فصلی و سالانه تابع عوامل طبیعی و اقلیمی متعددی است که یکی از مهمترین آنها
نمایههای دورپیوندی هستند. هدف مطالعه کنونی، ارزیابی و بررسی همبستگی نمایههای دورپیوندی با …

ارزیابی عملکرد داده‎ های بازتحلیل ERA5 در تخمین بارش ایران و واکاوی فضایی رژیم بارشی کشور

حیدری, کریمی, بیرانوند, آذر - پژوهشهای دانش زمین, 2024‎ - esrj.sbu.ac.ir
مقدمهبارش از مهمترین عناصر اقلیمی محسوب می‎ شود که در تعیین نقش و پراکندگی دیگر
متغیرهای اقلیمی می‎ تواند مؤثر باشد. این متغیر ناپایسته‎ ترین متغیر اقلیمی در مقیاس زمانی و …