Air pollution levels depend on drizzle rates

Scientists from Lawrence Livermore National Laboratory (LLNL), Scripps Institution of Oceanography and international collaborators have shown that an improved representation of drizzle rates leads to more pollution in the ...

Model estimates subsidence risks across the globe

An international team of researchers has created a model that can be used to make estimates about the degree of subsidence risk for different parts of the world. In their paper published in the journal Science, the group ...

Improving long-term climate calculations

Climate researchers have found a simple but efficient way to improve estimations of ultimate global warming from complex climate models. The finding is relevant for the evaluation and comparison of climate models and thus ...

Global warming intensifies precipitation extremes in China

Changes in the frequency and intensity of extreme weather and climate events have impacted human safety and the natural environment. Global warming increases holding capacity for atmospheric water vapor, and therefore escalates ...

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Climate model

Climate models use quantitative methods to simulate the interactions of the atmosphere, oceans, land surface, and ice. They are used for a variety of purposes from study of the dynamics of the climate system to projections of future climate.

All climate models take account of incoming energy as short wave electromagnetic radiation (which in this context means visible and ultraviolet, not to be confused with shortwave) to the earth as well as outgoing energy as long wave (infrared) electromagnetic radiation from the earth. Any imbalance results in a change in the average temperature of the earth.

The most talked-about models of recent years have been those relating temperature to emissions of carbon dioxide (see greenhouse gas). These models project an upward trend in the surface temperature record, as well as a more rapid increase in temperature at higher altitudes.

Models can range from relatively simple to quite complex:

This is not a full list; for example "box models" can be written to treat flows across and within ocean basins. Furthermore, other types of modelling can be interlinked, such as land use, allowing researchers to predict the interaction between climate and ecosystems.

This text uses material from Wikipedia, licensed under CC BY-SA