نتایج جستجو برای: assessing uncertainty of climate change models

تعداد نتایج: 21306544  

The climate changes have an important role in distribution of plant species. Statistical species distribution models (SDMs) are widely used to predict the changes in species distribution under climate change scenarios. In the peresent study, the distribution of Alopecurus textilis in the current and future climate condition (2050) under the influence of climate change and two scenarios of RCP 4...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2010
Simon N Gosling Dan Bretherton Keith Haines Nigel W Arnell

Uncertainties associated with the representation of various physical processes in global climate models (GCMs) mean that, when projections from GCMs are used in climate change impact studies, the uncertainty propagates through to the impact estimates. A complete treatment of this 'climate model structural uncertainty' is necessary so that decision-makers are presented with an uncertainty range ...

2015
Richard D. Pancost

This issue of Philosophical Transactions examines the relationship between scientific uncertainty about climate change and knowledge. Uncertainty is an inherent feature of the climate system. Considerable effort has therefore been devoted to understanding how to effectively respond to a changing, yet uncertain climate. Politicians and the public often appeal to uncertainty as an argument to del...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2015
Stephan Lewandowsky Timothy Ballard Richard D Pancost

This issue of Philosophical Transactions examines the relationship between scientific uncertainty about climate change and knowledge. Uncertainty is an inherent feature of the climate system. Considerable effort has therefore been devoted to understanding how to effectively respond to a changing, yet uncertain climate. Politicians and the public often appeal to uncertainty as an argument to del...

Journal: :اکو هیدرولوژی 0
مهدی دلقندی استادیار گروه آب و خاک، دانشکدۀ کشاورزی، دانشگاه صنعتی شاهرود روزبه موذن زاده استادیار گروه آب و خاک، دانشکدۀ کشاورزی، دانشگاه صنعتی شاهرود

climate change impacts on precipitation and temperature world-wide are not yet well understood (especially for precipitation), due to their complexity and regional variability. in this study in order to explicit the impact of climate change on precipitation and temperature in iran, 15 aogcm whose greenhouse gases scenarios ran under a2, a1b and b1 were used. monthly precipitation and temperatur...

2015
Richard D. Pancost

This issue of Philosophical Transactions examines the relationship between scientific uncertainty about climate change and knowledge. Uncertainty is an inherent feature of the climate system. Considerable effort has therefore been devoted to understanding how to effectively respond to a changing, yet uncertain climate. Politicians and the public often appeal to uncertainty as an argument to del...

Climate change may pose challenges to the conservation of plant species such as the Fritillaria imperialis that have narrow geographical distribution. In this study, the modeling suitable habitats of F.imperialis in Iran was done in the current condition and under climate change (2050). For this purpose, 78 species presence data along with 12 environmental variables including bioclimatic, physi...

2013
Molly S Cross Patrick D McCarthy Gregg Garfin David Gori Carolyn AF Enquist

Natural resource managers are seeking tools to help them address current and future effects of climate change. We present a model for collaborative planning aimed at identifying ways to adapt management actions to address the effects of climate change in landscapes that cross public and private jurisdictional boundaries. The Southwest Climate Change Initiative (SWCCI) piloted the Adaptation for...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
John A Wiens Diana Stralberg Dennis Jongsomjit Christine A Howell Mark A Snyder

As the rate and magnitude of climate change accelerate, understanding the consequences becomes increasingly important. Species distribution models (SDMs) based on current ecological niche constraints are used to project future species distributions. These models contain assumptions that add to the uncertainty in model projections stemming from the structure of the models, the algorithms used to...

Journal: :Atmospheric environment 2014
Howard H Chang Hua Hao Stefanie Ebelt Sarnat

The adverse health effects of ambient ozone are well established. Given the high sensitivity of ambient ozone concentrations to meteorological conditions, the impacts of future climate change on ozone concentrations and its associated health effects are of concern. We describe a statistical modeling framework for projecting future ozone levels and its health impacts under a changing climate. Th...

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