کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4428716 1619796 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of regional climate models to the Indian winter monsoon over the western Himalayas
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Application of regional climate models to the Indian winter monsoon over the western Himalayas
چکیده انگلیسی

The Himalayan region is characterized by pronounced topographic heterogeneity and land use variability from west to east, with a large variation in regional climate patterns. Over the western part of the region, almost one-third of the annual precipitation is received in winter during cyclonic storms embedded in westerlies, known locally as the western disturbance. In the present paper, the regional winter climate over the western Himalayas is analyzed from simulations produced by two regional climate models (RCMs) forced with large-scale fields from ERA-Interim. The analysis was conducted by the composition of contrasting (wet and dry) winter precipitation years. The findings showed that RCMs could simulate the regional climate of the western Himalayas and represent the atmospheric circulation during extreme precipitation years in accordance with observations. The results suggest the important role of topography in moisture fluxes, transport and vertical flows. Dynamical downscaling with RCMs represented regional climates at the mountain or even event scale. However, uncertainties of precipitation scale and liquid–solid precipitation ratios within RCMs are still large for the purposes of hydrological and glaciological studies.


► Study provide RCMs' sensitivity towards Indian Winter Monsoon.
► Uncertainty associated with RCMs towards Indian Winter Monsoon.
► Suitability for usage of hydrological/glaciological studies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volumes 468–469, Supplement, 1 December 2013, Pages S36–S47
نویسندگان
, , , , , , ,