کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8862885 | 1620130 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tracing isotopic signatures (δD and δ18O) in precipitation and glacier melt over Chorabari Glacier-Hydroclimatic inferences for the Upper Ganga Basin (UGB), Garhwal Himalaya
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The isotopic composition of various components of hydrological cycle i.e., precipitation (rainfall and snowfall), glacier surface ice and glacier melt have partly overlapping isotopic ranges. δ18O, δD and d-excess compositon indicates that precipitation during pre-monsoon (May/June) and post-monsoon (September/October) season have mixing of local moisture with that from westerlies. While during monsoon (June-September) rainfall-runoff contributes to the streamflow with snow and glacier melt. The depletion pattern of snow covered area (SCA) reflected by snow depletion curves (SDC) imply that most of the solid precipitation in the region results from westerlies, while during summers the precipitation from the Indian Summer Monsoon (ISM) is in the form of rainfall over higher altitudes. The isotopic depletion curve (IDC) of meltwater follows the trend of SDC's. The backward wind trajectories for the precipitation events also indicate that the source of winter precipitation is from westerlies while summer precipitation is from ISM. Present day δ18O, δD and d-excess composition and their climatic interpretation are site and time specific.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology: Regional Studies - Volume 15, February 2018, Pages 68-89
Journal: Journal of Hydrology: Regional Studies - Volume 15, February 2018, Pages 68-89
نویسندگان
Amit Kumar, Sameer K. Tiwari, Akshaya Verma, Anil K. Gupta,