نتایج جستجو برای: مدل precis

تعداد نتایج: 120324  

استفاده از پراکنش‌های مکانی بارش و دما نقش مهمی در افزایش دقت خروجی مد‌ل‌های هیدرولوژیکی دارند. هدف از این مقاله تهیه پراکنش‌های مکانی دما و بارش در آینده در حوضه آبریز رودخانه قره‌سو است. حوضه آبریز مورد مطالعه در شمال غرب کشور و در استان اردبیل قرار دارد. این حوضه آبریز از نظر تولید محصولات کشاورزی در ایران دارای اهمیت بسیار است. در تهیه پراکنش‌های مکانی بارش و دما از روش‌های درونیابی شامل رو...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده جغرافیا 1393

افزایش گازهای گلخانه‎ای تغییراتی را در تعادل آب و هوای کره زمین به‏وجود آورده ‎است که تغییر آب و هوا نامیده می‎شود. افزایش گازهای گلخانه‎ای، می‎تواند علاوه بر تاثیر بر روی پارامترهای آب و هوایی، سیستم‎های متاثر از این متغیرها، نظیر منابع آب، کشاورزی، محیط‏زیست، بهداشت و اقتصاد را نیز دگرگون سازد. برای بررسی اثرات تغییر آب و هوا بر سیستم‎های مختلف در آینده، ابتدا باید متغیرهای آب و هوایی تحت تغی...

2012
John Lazzaro John Wawrzynek

This Convention paper was selected based on a submitted abstract and 750-word precis that have been peer reviewed by at least two qualified anonymous reviewers. The complete manuscript was not peer reviewed. This convention paper has been reproduced from the author’s advance manuscript without editing, corrections, or consideration by the Review Board. The AES takes no responsibility for the co...

2012
Peter Selby Gerald Brosky Paul I Oh Vincent Raymond Suzanne Ranger

BACKGROUND Numerous explanatory randomized trials support the efficacy of chronic disease interventions, including smoking cessation treatments. However, there is often inadequate adoption of these interventions for various reasons, one being the limitation of generalizability of the explanatory studies in real-world settings. Randomized controlled trials can be rated as more explanatory versus...

2012
Zhonggen Wang Darren L. Ficklin Yongyong Zhang Minghua Zhang

Climate change may significantly affect the hydrological cycle and water resource management, especially in arid and semi-arid regions. In this paper, output from the Providing Regional Climates for Impacts Studies (PRECIS) regional climate model were used in conjunction with the Soil and Water Assessment Tool (SWAT) to analyse the effects of climate change on streamflow of the Xiying and Zamu ...

2011
Daniel J Bratton Andrew J Nunn

Clinical trials are sometimes classified as being explanatory or pragmatic, although they are rarely reported in that way. Explanatory trials may seek to investigate the efficacy of new treatments by imposing strict limitations on many aspects of trial design, including, for example, recruiting only those patients who are most likely to respond. In contrast, the objective of pragmatic trials is...

2011
Waheed Iqbal Ghulam Rasul

The regional climate models are being used to investigate the future projections of climate change and their impacts in developing and developed countries of the world in the recent era. The present study is carried out to study the downscaling ability of a regional climate model named PRECIS (Providing Regional Climates for Impacts Studies) of Hadley Centre, Meteorological Office, U. K in moun...

Journal: :Journal of Agrometeorology 2022

In this paper, the climate change scenarios of A2 and B2 for 2070-2100 time scale (denoted as 2080) several key locations India its impact on rice wheat crops based regional model (PRECIS) were described. The PRECIS projects an increase in temperature over most parts especially IGP (Indo-Gangetic Plains), region that presently experiences relatively low temperatures. Extreme high episodes rainf...

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