WACCM4 (Whole Atmosphere Community Climate Model, version 4)

The Whole Atmosphere Community Climate Model (WACCM) is a comprehensive numerical model, spanning the range of altitude from the Earth's surface to the thermosphere.

AtmosphereClimatenumerical model



Initial contribute: 2019-10-13


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Application-focused categoriesNatural-perspectiveAtmospheric regions

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Quoted from: https://ncar.github.io/CAM/doc/build/html/cam5_scientific_guide/introduction.html#the-whole-atmosphere-community-climate-model-waccm 

WACCM4 (Section sec-waccm), incorporates several improvements and enhancements over the previous version (3.1.9). It can be run coupled to the POP2 and CICE CESM model components. The model’s chemistry module (Section sec-chem_sub_cam) has been updated according to the latest JPL-2006 recommendations; a quasi-biennial oscillation may be imposed (as an option) by relaxing the winds to observations in the Tropics; heating from stratospheric volcanic aerosols is now computed explicitly; the effects of solar proton events are now included; the effect of unresolved orography is parameterized as a surface stress (turbulent mountain stress) leading to an improvement in the frequency of sudden stratospheric warmings; and gravity waves due to convective and frontal sources are parameterized based upon the occurrence of convection and the diagnosis of regions of frontogenesis in the model.



NCAR WHOLE ATMOSPHERE WORKING GROUP (2019). WACCM4 (Whole Atmosphere Community Climate Model, version 4), Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/53745f79-c185-49e6-a92e-3a874733436e


Initial contribute : 2019-10-13



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