کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5113737 | 1377948 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Towards modeling the regional rainfall changes over Iran due to the climate forcing of the past 6000 years
ترجمه فارسی عنوان
به سوی مدل سازی تغییرات بارندگی منطقه ای بر روی ایران به علت فشرده شدن هوا در 6000 سال گذشته
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
We present a climate modeling approach to reproduce the rainfall patterns over Iran due to the climatic forcings during the past 6000 years. The selected periods are simulated using a spatially high-resolved atmosphere General Circulation Model (GCM). Our results show that the winter rainfall patterns over Iran have changed due to the changes in solar insolation with a wetter condition starting around 3Â ka BP and reaching its maximum during the Medieval Climate Anomaly ca. 1Â ka BP. The rainfall variability can be explained by the changes in atmospheric conditions as a result of changing incoming solar irradiance based on the Milankovitch theory. A shift in the Earth's energy budget leads to the modulation of the West Asian Subtropical Westerly Jet (WASWJ). The investigations support the hypothesis that during the Holocene a northward shift in the WASWJ contributes to the less cyclonic activities over Iran. This brings less moisture into the region during the winter.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Quaternary International - Volume 429, Part B, 30 January 2017, Pages 119-128
Journal: Quaternary International - Volume 429, Part B, 30 January 2017, Pages 119-128
نویسندگان
Bijan Fallah, Sahar Sodoudi, Emmanuele Russo, Ingo Kirchner, Ulrich Cubasch,