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in subjects: "General Circulation Models"  
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Application of Improved Radiation Modeling to General Circulation Models

Description: This research has accomplished its primary objectives of developing accurate and efficient radiation codes, validating them with measurements and higher resolution models, and providing these advancements to the global modeling community to enhance the treatment of cloud and radiative processes in weather and climate prediction models. A critical component of this research has been the development of the longwave and shortwave broadband radiative transfer code for general circulation model (GCM… more
Date: April 7, 2011
Creator: Iacono, Michael J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uncertainty quantification of US Southwest climate from IPCC projections.

Description: The Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) made extensive use of coordinated simulations by 18 international modeling groups using a variety of coupled general circulation models (GCMs) with different numerics, algorithms, resolutions, physics models, and parameterizations. These simulations span the 20th century and provide forecasts for various carbon emissions scenarios in the 21st century. All the output from this panoply of models is made available … more
Date: January 1, 2011
Creator: Boslough, Mark Bruce Elrick
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Response of precipitation extremes to idealized global warming in an aqua-planet climate model: Towards robust projection across different horizontal resolutions

Description: Current climate models produce quite heterogeneous projections for the responses of precipitation extremes to future climate change. To help understand the range of projections from multimodel ensembles, a series of idealized 'aquaplanet' Atmospheric General Circulation Model (AGCM) runs have been performed with the Community Atmosphere Model CAM3. These runs have been analysed to identify the effects of horizontal resolution on precipitation extreme projections under two simple global warming … more
Date: April 15, 2011
Creator: Li, F.; Collins, W.D.; Wehner, M.F.; Williamson, D.L. & Olson, J.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Statistical surrogate models for prediction of high-consequence climate change.

Description: In safety engineering, performance metrics are defined using probabilistic risk assessments focused on the low-probability, high-consequence tail of the distribution of possible events, as opposed to best estimates based on central tendencies. We frame the climate change problem and its associated risks in a similar manner. To properly explore the tails of the distribution requires extensive sampling, which is not possible with existing coupled atmospheric models due to the high computational c… more
Date: September 1, 2011
Creator: Constantine, Paul; Field, Richard V., Jr. & Boslough, Mark Bruce Elrick
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Technical Report for "Collaborative Research: Regional climate-change projections through next-generation empirical and dynamical models"

Description: This project was a continuation of previous work under DOE CCPP funding in which we developed a twin approach of non-homogeneous hidden Markov models (NHMMs) and coupled ocean-atmosphere (O-A) intermediate-complexity models (ICMs) to identify the potentially predictable modes of climate variability, and to investigate their impacts on the regional-scale. We have developed a family of latent-variable NHMMs to simulate historical records of daily rainfall, and used them to downscale seasonal pred… more
Date: April 8, 2011
Creator: Robertson, A. W.; Ghil, M.; Kravtsov, K. & Smyth, P. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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