نتایج جستجو برای: especially the precipitation

تعداد نتایج: 16065347  

2009
A. K. Gilgen N. Buchmann

Water is an important resource for plant life. Since climate scenarios for Switzerland predict an average reduction of 20% in summer precipitation until 2070, understanding ecosystem responses to water shortage, e.g. in terms of plant productivity, is of major concern. Thus, we tested the effects of simulated summer drought on three managed grasslands along an altitudinal gradient in Switzerlan...

2018
Levi J Heffelfinger Kelley M Stewart Anthony P Bush James S Sedinger Neal W Darby Vernon C Bleich

Climate models predict that shifts in temperature and precipitation patterns are likely to occur across the globe. Changing climate will likely have strong effects on arid environments as a result of increased temperatures, increasing frequency and intensity of droughts, and less consistent pulses of rainfall. Therefore, understanding the link between patterns of precipitation, temperature, and...

2009
Gerd Schädler Hendrik Feldmann Hans-Jürgen Panitz

The 4th IPCC report summarises the effects on precipitation for Europe based on global climate models (GCM) simulations as follows: In northern Europe the climate will become moister – especially during winter – and the Mediterranean region will be much drier in the future – especially for the summer months than it is today. Central Europe lies in the transition region between these two regimes...

2006
AIGUO DAI

Monthly and 3-hourly precipitation data from twentieth-century climate simulations by the newest generation of 18 coupled climate system models are analyzed and compared with available observations. The characteristics examined include the mean spatial patterns, intraseasonal-to-interannual and ENSO-related variability, convective versus stratiform precipitation ratio, precipitation frequency a...

2011
Claire El Mouden Andy Gardner Celia Brenner Samir Okasha

8 Chapter

Journal: :فیزیک زمین و فضا 0
صدیقه امیدی دانشجو/ دانشگاه یزد محمدحسین معماریان عضو هیات علمی دانشکده فیزیک/ دانشگاه یزد سعید فرزانه دانشجو/ دانشکده مهندسی نقشه برداری دانشگاه تهران

reduced rainfall in many parts of the world have prompted scientists to try to manipulate, in different ways, to the nature, causing precipitation from accumulated water in the atmosphere. atmospheric ionization is a new method for producing precipitation and has attracted much attention. in this regard, in recent years, in some regions of the world, in different ways, the relation between mete...

Journal: :مرتع و آبخیزداری 0
پریوش طوفانی کارشناس ارشد مهندسی منابع آب دانشگاه علوم کشاورزی و منابع طبیعی گرگان احمد فاخری فرد استاد، گروه مهندسی آب دانشگاه تبریز ابوالفضل مساعدی استاد دانشکدة منابع طبیعی و محیط زیست دانشگاه فردوسی مشهد امیر احمد دهقانی دانشیار گروه مهندسی آب دانشگاه علوم کشاورزی و منابع طبیعی گرگان

prediction of precipitation is very important. regarding to the non- linear relationships and uncertainty of models, there is no superior and persuasive model among various proposed models to simulate precise precipitation and its amount. wavelet is one of the novel and very effective methods in time series and signals analyzing, that has been considered in the field of hydrology in recent year...

Extended abstract 1- Introduction     In order to calculate the erosive power of rainfall, high-resolution precipitation data are necessary for rainfall erosion evaluation. However, collecting the required data on kinetic energy of the rainfall particles and precipitation rates with short-term temporal resolution is a time-intensive task, particularly in developing countries, and the collecte...

Journal: :تحقیقات جغرافیایی 0
امیدرضا کفایت مطلق ریحانه سمندر دانشگاه کردستان هادی ظرافتی دانشگاه کردستان محمد دارند دانشگاه کردستان

nowadays, undoubted access to up to date with high spatial resolution and low temporal resolution of meteorological parameters is a one of the necessary needs for meteorological science researches. in order to doing this research have been used the different daily, monthly and yearly iran precipitation from global and regional data base of gpcpøŒ gpccøŒ aphrodit v101 0.25øŒ aphrodit v101 0.5 ùˆ...

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