نتایج جستجو برای: to calculate potential evapotranspiration

تعداد نتایج: 10793668  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی عمران 1388

چکیده روش های متعددی برای برآورد رواناب حاصل از بارش در حوضه های آبریز وجود دارد. یکی از این روش ها استفاده از مدل های هیدرولوژیکی است. با استفاده از مدل های هیدرولوژیکی و شبیه سازی فرآیندهای هیدرولوژیکی می توان با صرف کمترین زمان و هزینه، رواناب و مولفه های دیگر چرخ? هیدرولوژیکی را برآورد کرد. از آنجا که در حوضه های آبریز اندازه گیری تمام کمیت های مورد نیاز برای تحلیل رواناب ممکن نیست، انتخاب...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1382

‏‎despite the different criticisms on contrastive analysis it has been proved that the results of it(when processed) can be useful in a tefl environment, specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims.the consonants,vowels,stress and intonation of the two languages are described by the same model...

Journal: :Remote Sensing 2017
Brent M. Lofgren

A statement in this recently published paper makes a point that is largely at odds with the main point of the paper that is cited. Stating that higher air temperatures lead to greater evapotranspiration is an oversimplification; the true story is more complex. Although this is by no means central to the conclusions of the paper being commented on, we have demonstrated the danger in taking too l...

2016
Long Wan Jing Tong Jinxing Zhou Hongyan Guo Ming Cui Yuguo Liu Like Ning Fukai Tang

Over the past several decades, rocky desertification has led to severe ecological problems in karst areas in South China. After a rocky desertification treatment project was completed, the vegetation coverage changed greatly and, consequently, increased the ecology water consumption (approximately equal to the actual evapotranspiration) of the regional vegetation. Thus, it intensified the regio...

Journal: :Journal of the Japan Institute of Metals and Materials 1993

Journal: :فیزیک زمین و فضا 0
نوذر قهرمان پردیس کشاورزی و منابع طبیعی دانشگاه تهران، گروه مهندسی آبیاری و آبادانی ایمان بابائیان پزوهشکده اقلیم شناسی محمد رضا طباطبایی دانشگاه تهران

as a direct consequence of warmer temperatures, the hydrologic cycle will undergo significant impact with accompanying changes in the rates of precipitation and evaporation. climate change will cause changes in climate variable such as precipitation, temperature, sunshine hours, wind speed and etc. so as a result of climate variable change, the related variable such as potential evapotranspirat...

Journal: :environmental resources research 2014
vahedberdi sheikh

hydrologic regime is highly dependent on climate change, as hydrologic cycle components are directly influenced by climatic conditions. this paper analyzes the impacts of climate change on the hydrologic regime of the atrak river basin in the northeast of iran. it drains to the caspian sea. the data collected at 11 hydrometeorological stations were examined to detect trends in hydroclimatologic...

Journal: :ZANCO Journal of Pure and Applied Sciences 2022

Water balancing techniques are strategies for resolving key theoretic and applied hydrologic challenges. The primary goals of the study to examine climatic characteristics conditions that will be utilized in water approach used Rawandoz located northeastern Iraq. meteorological data from Soran station’s 2000 2020 were analyze climate patterns research region. annual rainfall average is 750.50 m...

Journal: :آب و خاک 0
محمد قبائی سوق ابوالفضل مساعدی موسی حسام ابوطالب هزارجریبی

abstract process of evapotranspiration (eto) is a major component of the hydrologic cycle that its accurate estimation plays an important role to achieve sustainable development in water balance, irrigation system design and planning and management of water resources. being a function of different metrological parameters and their interactions, evapotranspiration is a complex, nonlinear phenome...

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