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Methods and resources for climate impacts research

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Title Methods and resources for climate impacts research
 
Creator Challinor, Andrew J.
Osborne, Tom M.
Shaffrey, Len
Weller, Hilary
Morse, Andy
Wheeler, Tim
Vidale, Pier Luigi
 
Subject climate
models
agriculture
 
Description The prediction of climate variability and change requires the use of a range of simulation models. Multiple climate model simulations are needed to sample the inherent uncertainties in seasonal to centennial prediction. Because climate models are computationally expensive, there is a tradeoff between complexity, spatial resolution, simulation length, and ensemble size. The methods used to assess climate impacts are examined in the context of this trade-off. An emphasis on complexity allows simulation of coupled mechanisms, such as the carbon cycle and feedbacks between agricultural land management and climate. In addition to improving skill, greater spatial resolution increases relevance to regional planning. Greater ensemble size improves the sampling of probabilities. Research from major international projects is used to show the importance of synergistic research efforts.

The primary climate impact examined is crop yield, although many of the issues discussed are relevant to hydrology and health modeling. Methods used to bridge the scale gap between climate and crop models are reviewed. Recent advances include large-area crop modeling, quantification of uncertainty in crop yield, and fully integrated crop–climate modeling. The implications of trends in computer power, including supercomputers, are also discussed.
 
Date 2009-06
2013-02-05T09:37:55Z
2013-02-05T09:37:55Z
 
Type Journal Article
 
Identifier Challinor AJ, Osborne T, Shaffrey L, Weller H, Morse A, Wheeler T, Vidale PL. 2009. Methods and resources for climate impacts research. Bulletin of the American Meteorological Society 90: 836-848.
https://hdl.handle.net/10568/25161
https://doi.org/10.1175/2008BAMS2403.1
 
Language en
 
Rights Open Access
 
Format p. 836-848
application/pdf
 
Publisher American Meteorological Society
 
Source Bulletin of the American Meteorological Society