کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5753641 1620488 2017 70 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
The impact of global unknown teleconnection patterns on terrestrial precipitation across North and Central America
ترجمه فارسی عنوان
تاثیر مدل های ارتباطی ناشناخته جهانی در بارندگی های زمینی در آمریکای شمالی و مرکزی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
چکیده انگلیسی
Global sea surface temperature (SST) anomalies can affect terrestrial precipitation via ocean-atmosphere interactions known as climate teleconnections. Nonstationary and nonlinear characteristics of the teleconnection signals passing through the complex ocean-atmosphere-land system may provide a unique opportunity to quantify large-scale climate variability. This work explores the systematic relationships between global SST anomalies and terrestrial precipitation variability with respect to long-term nonlinear and nonstationary teleconnection signals during 1981-2010 over three regions in North America and one in Central America. The aim of this study was to investigate the surveillance capacity of teleconnections through varying atmospheric pathways toward different types of landscape and geographical environments. After finding possible associations between the dominant variation of seasonal precipitation and global SST anomalies through the integrated empirical mode decomposition, wavelet analysis, and lagged correlation analysis, the statistically significant SST regions were extracted to identify both known and unknown teleconnections. Results indicate that previously unidentified SST regions contribute a salient portion of terrestrial precipitation variability over different terrestrial regions. Central America and Pacific Northwest study sites receive highest probable impacts of climate variability driven by some unknown teleconnections that reveal unique coupling interactions between oceanic and atmospheric processes, implying possible linkages with atmospheric rivers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Research - Volume 193, 1 September 2017, Pages 107-124
نویسندگان
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