On the relationship between cloud-radiation interaction, atmospheric stability and Atlantic tropical cyclones in a variable-resolution climate model
2013 (English)In: Climate Dynamics, ISSN 0930-7575, E-ISSN 1432-0894, Vol. 40, no 5-6, 1257-1269 p.Article in journal (Refereed) Published
We compare two 28-year simulations performed with two versions of the Global Environmental Multiscale model run in variable-resolution mode. The two versions differ only by small differences in their radiation scheme. The most significant modification introduced is a reduction in the ice effective radius, which is observed to increase absorption of upwelling infrared radiation and increase temperature in the upper troposphere. The resulting change in vertical lapse rate is then observed to drive a resolution-dependent response of convection, which in turn modifies the zonal circulation and induces significant changes in simulated Atlantic tropical cyclone activity. The resulting change in vertical lapse rate and its implication in the context of anthropogenic climate change are discussed.
Place, publisher, year, edition, pages
2013. Vol. 40, no 5-6, 1257-1269 p.
Tropical cyclones, Variable-resolution climate model, Radiation scheme, Atmospheric stability, Lapse rate, Convection, Cloud parametrization
Meteorology and Atmospheric Sciences
IdentifiersURN: urn:nbn:se:su:diva-88981DOI: 10.1007/s00382-012-1311-6ISI: 000315440100012OAI: oai:DiVA.org:su-88981DiVA: diva2:615463