Publication Abstracts
Geller et al. 2011
Geller, M.A.,
, , , , , S. Sun, , and , 2011: New gravity wave treatments for GISS climate models. J. Climate, 24, 3989-4002, doi:10.1175/2011JCLI4013.1.Previous versions of GISS climate models have either used formulations of Rayleigh drag to represent unresolved gravity wave interactions with the model resolved flow or have included a rather complicated treatment of unresolved gravity waves that, while being climate interactive, involved the specification of a relatively large number of parameters that were not well constrained by observations and also was computationally very expensive. Here, we introduce a relatively simple and computationally efficient specification of unresolved orographic and non-orographic gravity waves and their interaction with the resolved flow. We show comparisons of the GISS model winds and temperatures with no gravity wave parametrization; with only orographic gravity wave parameterization; and with both orographic and non-orographic gravity wave parameterizations to illustrate how the zonal mean winds and temperatures converge toward observations. We also show that the specifications of orographic and non-orographic gravity waves must be different in the Northern and Southern Hemispheres. We then show results where the non-orographic gravity wave sources are specified to represent sources from convection in the Intertropical Convergence Zone and spontaneous emission from jet imbalances. Finally, we suggest a strategy to include these effects in a climate dependent manner.
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BibTeX Citation
@article{ge00100w, author={Geller, M. A. and Zhou, T. and Ruedy, R. and Aleinov, I. and Nazarenko, L. and Tausnev, N. L. and Sun, S. and Kelley, M. and Cheng, Y.}, title={New gravity wave treatments for GISS climate models}, year={2011}, journal={Journal of Climate}, volume={24}, pages={3989--4002}, doi={10.1175/2011JCLI4013.1}, }
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RIS Citation
TY - JOUR ID - ge00100w AU - Geller, M. A. AU - Zhou, T. AU - Ruedy, R. AU - Aleinov, I. AU - Nazarenko, L. AU - Tausnev, N. L. AU - Sun, S. AU - Kelley, M. AU - Cheng, Y. PY - 2011 TI - New gravity wave treatments for GISS climate models JA - J. Climate JO - Journal of Climate VL - 24 SP - 3989 EP - 4002 DO - 10.1175/2011JCLI4013.1 ER -
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