نتایج جستجو برای: assessing uncertainty of climate change models

تعداد نتایج: 21306544  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده مهندسی علوم آب 1393

drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...

Journal: :آب و خاک 0
علیرضا کمال علیرضا مساح بوانی

abstarct development of greenhouse gases in future periods not only causes change in average amounts of climate variables but also makes variables of this variability affected. then for sure concerning alternations followed with climate variables’ fluctuations and its average amounts in effecting on runoff would make more reliable results. in this inquiry initially fluctuations and average amou...

Journal: :اکو هیدرولوژی 0
مریم احمدوند کهریزی دانشجوی کارشناسی ارشد آبخیزداری، گروه مرتع و آبخیزداری، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه گنبد کاووس، گنبدکاووس، ایران حامد روحانی استادیار، گروه مرتع و آبخیزداری، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه گنبد کاووس، گنبدکاووس، ایران

assessing the potential impacts of 21st-century climate change on species distributions and ecological processes requires climate scenarios with sufficient spatial resolution. in this study we projected future changes in maximum temperature and minimum temperature under cmip3 sres and cmip5 rcps scenarios with two station-based datasets (arazkoseh and nodeh) of the eastern golestan province. ch...

Journal: :اکو هیدرولوژی 0
هادی نظری پویا دانشجوی دکتری جغرافیا اقلیم‏شناسی، دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران پرویز کردوانی استاد، دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران، ایران عبدالرضا فرجی راد استاد، دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران، ایران

climate change is one of the most important factors that will affect different parts of human life on earth and will be adverse effects on environmental resources, economic, social and especially water resources, with changes in rainfall and timing of runoff amount.one of the strategies to mitigate the effects of climate change is to assess its effects on precipitation, temperature and runoff i...

Background and Purpose: Climate change has major impact on water cycle, resulting in effects on water resources, the frequency and severity of droughts, floods due to severe rainfall, natural environments, society, and economics and human health.  In this paper, surveys on different models of climate change as well as the effects of climate change on the burden of waterborne diseases and also, ...

Journal: :Global change biology 2017
Peter Alexander Reinhard Prestele Peter H Verburg Almut Arneth Claudia Baranzelli Filipe Batista E Silva Calum Brown Adam Butler Katherine Calvin Nicolas Dendoncker Jonathan C Doelman Robert Dunford Kerstin Engström David Eitelberg Shinichiro Fujimori Paula A Harrison Tomoko Hasegawa Petr Havlik Sascha Holzhauer Florian Humpenöder Chris Jacobs-Crisioni Atul K Jain Tamás Krisztin Page Kyle Carlo Lavalle Tim Lenton Jiayi Liu Prasanth Meiyappan Alexander Popp Tom Powell Ronald D Sands Rüdiger Schaldach Elke Stehfest Jevgenijs Steinbuks Andrzej Tabeau Hans van Meijl Marshall A Wise Mark D A Rounsevell

Understanding uncertainties in land cover projections is critical to investigating land-based climate mitigation policies, assessing the potential of climate adaptation strategies and quantifying the impacts of land cover change on the climate system. Here, we identify and quantify uncertainties in global and European land cover projections over a diverse range of model types and scenarios, ext...

Journal: :جغرافیا و مخاطرات محیطی 0
دل آرام هوشمند محمد جواد خردادی

. introduction global warming and its result, climate change is an important subject investigated especially in the recent decades by researchers throughout the world. in these studies, at first, climatic parameters changes are investigated. considering many uncertainties in the parameters estimation, it is better to choose a method in order to study and analyze the uncertainty band due to diff...

2000
MORT D. WEBSTER ANDREI P. SOKOLOV

Possible climate change caused by an increase in greenhouse gas concentrations, despite having been a subject of intensive study in recent years, is still very uncertain. Uncertainties in projections of different climate variables are usually described only by the ranges of possible values. For assessing the possible impact of climate change, it would be more useful to have probability distribu...

2010
W. Buytaert

Climate change is expected to have a large impact on water resources worldwide. A major problem in assessing the potential impact of a changing climate on these resources is the difference in spatial scale between available climate change projections and water resources management. Regional climate models (RCMs) are often used for the spatial disaggregation of the outputs of global circulation ...

پایان نامه :0 1391

uncertainty in the financial market will be driven by underlying brownian motions, while the assets are assumed to be general stochastic processes adapted to the filtration of the brownian motions. the goal of this study is to calculate the accumulated wealth in order to optimize the expected terminal value using a suitable utility function. this thesis introduced the lim-wong’s benchmark fun...

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