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Climate Models and Their Simulation of Precipitation

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  • David R. Legates

    (University of Delaware Newark, Delaware USA)

Abstract

Current state-of-the-art General Circulation Models (GCMs) do not simulate precipitation well because they do not include the full range of precipitation-forming mechanisms that occur in the real world. It is demonstrated here that the impact of these errors are not trivial – an error of only 1 mm in simulating liquid rainfall is equivalent to the energy required to heat the entire troposphere by 0.3°C. Given that models exhibit differences between the observed and modeled precipitation that often exceed 1 mm day −1 , this lost energy is not trivial. Thus, models and their prognostications are largely unreliable.

Suggested Citation

  • David R. Legates, 2014. "Climate Models and Their Simulation of Precipitation," Energy & Environment, , vol. 25(6-7), pages 1163-1175, August.
    • Handle: RePEc:sae:engenv:v:25:y:2014:i:6-7:p:1163-1175
    DOI: 10.1260/0958-305X.25.6-7.1163
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    1. S. Fred Singer, 2001. "Difficulty in reconciling global-warming data," Nature, Nature, vol. 409(6818), pages 281-281, January.
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