کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4450663 1620568 2010 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A soil moisture assimilation scheme using satellite-retrieved skin temperature in meso-scale weather forecast model
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
A soil moisture assimilation scheme using satellite-retrieved skin temperature in meso-scale weather forecast model
چکیده انگلیسی

A thermodynamically consistent soil moisture assimilation scheme for clear sky and snow free conditions has been developed for the meso-scale modeling system in the Arctic region by using satellite-derived skin temperatures. Parallel control and sensitivity modeling experiments were designed and their results demonstrated that the assimilation scheme successfully improves the soil moistures that were deliberately perturbed initially, indicating capability of the scheme to correct bias in the soil moisture initialization. Moreover, the resultant benefit of this assimilation scheme does not only lie in the improvement of soil moisture; the skin temperature also consequently exhibits improvements in a thermodynamic consistency. A real application of the assimilation scheme with satellite-retrieved skin temperature exhibited noticeable positive impacts on the modeling simulation and weather forecast; the model obviously captured meso-scale features of soil moistures as well as the skin temperatures. The warming tendency bias in original model simulations was removed to a considerable extent by this assimilation scheme.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Research - Volume 95, Issues 2–3, February 2010, Pages 333–352
نویسندگان
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