نتایج جستجو برای: مدل عددی wrf
تعداد نتایج: 133548 فیلتر نتایج به سال:
The BSC-CNS is involved in the CALIOPE project (Baldasano et al., 2008), a national Spanish initiative that has as main objective to establish an air quality forecasting system for Spain coordinated by the Ministry of the Environment. The modeling system bases on the WRF-ARW model as meteorological driver (Figure 1). As is well known, air quality models are highly dependent on the quality of th...
The climate of the Murray-Darling Basin (MDB) has been simulated using the Weather Research and Forecasting (WRF) model. WRF was implemented using a 10km horizontal grid and integrated for 24 years from 1985 through 2008. The model simulated climate was evaluated against gridded precipitation and temperature observations from the Australian Water Availability Project (AWAP) and found to perform...
هدف این مطالعه، امکانسنجی استفاده از برونداد پوشش برف مدل پیشبینی عددیWRF با هدف بهبود پیشبینیهای مرتبط با ذوب برف میباشد. با توجه به تعداد محدود ایستگاه های دیدبانی برف سنجی در مناطق کوهستانی کشور، داده های ماهواره ای به عنوان اطلاعات دیدبانی و سنجش برف با پوشش گسترده مکانی، میتواند مورد استفاده قرار گیرد. در این مطالعه شاخص نرمال شده تمایز برف با استفاده از داده های سنجنده MODIS استخراج ...
Renal impairment frequently accompanies heart failure (HF) and is a recognized independent risk factor for morbidity and mortality. Few data are available assessing the impact of worsening renal function (WRF) during hospitalization on health care resource use in patients with HF. Health Insurance Portability and Accountability Act-compliant, de-identified, clinical, laboratory, and economic da...
The Pleim-Xiu land-surface model, Pleim surface-layer and Asymmetric Convective Model (Version 2) are now options in version 3.0 of the Weather Research and Forecasting (WRF) model. These physics options were developed for the MM5 mesoscale model and used extensively by the air quality modeling community, so there was a need to extend these physics to WRF. The new physics in WRF are compared to...
در این مقاله عملکرد مدل میانمقیاس پیشبینی وضع هوای WRF با هستۀ دینامیکی ARW برای شبیهسازی میدان باد در منطقۀ خلیج فارس تحت شرایط مرزی و اولیۀ مختلف ارزیابی و بررسی شده است. برای این منظور از سه نوع مجموعه دادۀ ERA-Interim، NCEP-FNL و NCEP-R2 برای تأمین شرایط اولیه و مرزی مدل استفاده شده است. سه نوع شبیهسازی مختلف WRF در این مقاله انجام گرفت و برای مقایسۀ خروجی باد مدل تحت شرایط مرزی و اولیۀ...
OBJECTIVES To examin the effect of Ramadan fasting on worsening of renal function (WRF). Method: This was a single-arm prospective observational study including 65 patients with stage 3 or higher chronic kidney disease (CKD). By definition, WRF was considered to have occurred when serum creatinine levels increased by 0.3 mg/dL (26.5 µmol/l) from baseline during or within 3 months after Ramadan....
[1] In previous studies, the Yonsei University (YSU) planetary boundary layer (PBL) scheme implemented in the Weather Research and Forecasting (WRF) model was reported to perform less well at night, while performing better during the day. Compared to observations, predicted nocturnal low-level jets (LLJs) were typically weaker and higher. Also, the WRF model with Chemistry (WRF/Chem) with the Y...
This research presents an integrated system of computer software, networking and web-based display developed and deployed to allow drainage management authorities immediate access to results from the Weather Research and Forecasting (WRF) Hydrological Extension model, WRF-Hydro. Output data from the model are analyzed by a chain of GIS, database and web publishing tools to forge updated and rea...
Part of the charge to the WRF Research Applications Board (RAB) is to “review trends and emerging science and technologies and to identify and prioritize those elements representing the greatest opportunities for advancing the capabilities of the WRF modeling system for use by the research community.” In response to this directive, the RAB has solicited input from the research community and pre...
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