نتایج جستجو برای: مدل میانمقیاس wrf

تعداد نتایج: 122703  

Journal: :Cardiorenal medicine 2013
Andrew K Roy Catherine Mc Gorrian Cecelia Treacy Edel Kavanaugh Alice Brennan Niall G Mahon Patrick T Murray

AIMS To determine if newer criteria for diagnosing and staging acute kidney injury (AKI) during heart failure (HF) admission are more predictive of clinical outcomes at 30 days and 1 year than the traditional worsening renal function (WRF) definition. METHODS We analyzed prospectively collected clinical data on 637 HF admissions with 30-day and 1-year follow-up. The incidence, stages, and out...

2007
M. Salzmann M. G. Lawrence V. T. J. Phillips

The meteorological component of the CSRMC is based on a modified height coordinate prototype version of the nonhydrostatic, compressible Weather and Research and Forecasting (WRF) model. The WRF model is a community model which is being developed in a collaborative effort by the National Center for Atmospheric Research (NCAR), the National Centers for Environmental Prediction (NCEP), the Air Fo...

ژورنال: ژئوفیزیک ایران 1388
رباب مشایخی عباسعلی علی‌‌اکبری بیدختی پرویز ایران‌‌نژاد یوهان فایشتر

در این پژوهش با استفاده از مدل جفت شده هواویز پیشرفته HAM و مدل پیش‌بینی عددی- تحقیقاتی WRF به بررسی فرایند‌های میکروفیزیکی ذرات هواویز جوی پرداخته شده است. مدل WRF-HAM از روش جدیدی برای ارائه توزیع اندازه ذرات هواویز جوی تحت عنوان روش شبه‌مدی بهره می‌برد و فرایند‌های میکروفیزیکی متعددی شامل میعان اسید سولفوریک بر سطح ذرات هواویز، هسته‌بندی و تولید ذرات ثانویه، برخورد و هم‌آمیزی ذرات و نیز تعاد...

سهراب حجام, فاطمه صحراییان مجید آزادی, محمدرضا شیرغلامی

با اینکه امروزه مدل‌های پیش‌‌بینی عددی وضع هوا پیشرفت قابل توجهی کرده‌اند اما هنوز پیش‌بینی دقیق بارش نقطه‌ای، بسیار مشکل و چالش‌برانگیز است. همواره تلاش بر این بوده است که پیش‌بینی بارش به صورت دقیق‌تری با بهبود شرایط اولیه و پیکربندی مدل‌های پیش‌بینی عددی وضع هوا به دست آید. به این منظور تصحیح برونداد مدل یکی از راه‌هایی است که می‌توان انجام داد. در این پژوهش مدل میان‌مقیاس WRF با دو دامنه با...

2015
C. Simpson J. Sharples

On the afternoon of 18 January 2003, a number of separate fires located to the west of Canberra, Australia, began major runs under extreme fire weather conditions, and impacted upon the city. These events were well documented by a range of instruments, including a multispectral line-scanning instrument attached to an aircraft. Analysis of the data collected revealed that a number of the fires h...

Journal: :Baghdad Science Journal 2022

In Indonesia, cattle feces (CF) and water hyacinth (WH) plants are abundant but have not been widely revealed. The use of microorganisms as decomposers in the fermentation process has applied, so researchers interested studying further. This study was to evaluate effect combination CF with WH on composting by applying white-rot fungal (WRF) (Ganoderma sp) microorganism a decomposer. A number si...

2009
Yoo-Jeong Noh Thomas H. Vonder Haar

Better understanding of the vertical structures of clouds in the atmosphere is essential for more accurate radar, lidar, satellite retrievals, climate/weather numerical modeling, and even aviation safety issues regarding icing conditions (Fleishauer et al., 2002). However, an accurate estimate of liquid and ice phase hydrometeors in the clouds is still very challenging, and our limited knowledg...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Lee M Miller Nathaniel A Brunsell David B Mechem Fabian Gans Andrew J Monaghan Robert Vautard David W Keith Axel Kleidon

Wind turbines remove kinetic energy from the atmospheric flow, which reduces wind speeds and limits generation rates of large wind farms. These interactions can be approximated using a vertical kinetic energy (VKE) flux method, which predicts that the maximum power generation potential is 26% of the instantaneous downward transport of kinetic energy using the preturbine climatology. We compare ...

2013
James M. McMahon Stephanie Tortu Enrique R. Pouget Leilani Torres William Rodriguez Rahul Hamid

A randomized trial was conducted to test the effectiveness of couple-based HIV counseling and testing (CB-HIV-CT) and women-only relationship-focused HIV counseling and testing (WRF-HIV-CT) in reducing HIV risk compared to the National Institute on Drug Abuse HIV-CT standard intervention. Substance using HIV-negative women and their primary heterosexual partner (N = 330 couples) were randomized...

2011
JEREMY A. GIBBS EVGENI FEDOROVICH

Weather Research and Forecasting (WRF) model predictions using different boundary layer schemes and horizontal grid spacings were compared with observational and numerical large-eddy simulation data for conditions corresponding to a dry atmospheric convective boundary layer (CBL) over the southern Great Plains (SGP). The first studied case exhibited a dryline passage during the simulation windo...

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