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RISDynamics and Thermodynamics of a Warming Event in a Coupled Tropical Atmosphere–Ocean Model
Publisher: American Meteorological Society
Abstract: A simple coupled ocean?atmosphere model, similar to that of Zebiak and Cane, is used to examine the dynamic and thermodynamic processes associated with El Niño/Southern Oscillation (ENSO). The model is run for 300 years. ...
On the Role of Off-Equatorial Oceanic Rossby Waves during ENSO
Publisher: American Meteorological Society
Abstract: Recent theoretical and numerical modeling studies of the coupled tropical atmosphere-ocean system suggest that equatorial ocean wave dynamics may play an important role in the evolution of ENSO (El Niño/Southern Oscillation). ...
Reduced Atlantic Storminess during Last Glacial Maximum: Evidence from a Coupled Climate Model
Publisher: American Meteorological Society
Abstract: The Last Glacial Maximum (LGM), 21 000 yr before present, was the time of maximum land ice extent during the last ice age. A recent simulation of the LGM climate by a state-of-the-art fully coupled global climate model is ...
Causes of Reduced North Atlantic Storm Activity in a CAM3 Simulation of the Last Glacial Maximum
Publisher: American Meteorological Society
Abstract: The aim of this paper is to determine how an atmosphere with enhanced mean-state baroclinity can support weaker baroclinic wave activity than an atmosphere with weak mean-state baroclinity. As a case study, a Last Glacial ...
What Determines Meridional Heat Transport in Climate Models?
Publisher: American Meteorological Society
Abstract: he annual mean maximum meridional heat transport (MHTMAX) differs by approximately 20% among coupled climate models. The value of MHTMAX can be expressed as the difference between the equator-to-pole contrast in absorbed ...
The Amplitude Asymmetry between Synoptic Cyclones and Anticyclones: Implications for Filtering Methods in Feature Tracking
Publisher: American Meteorological Society
Abstract: The ?background? state is commonly removed from synoptic fields by use of either a spatial or temporal filter prior to the application of feature tracking. Commonly used spatial and temporal filters applied to sea level ...
The Seasonal Cycle of Atmospheric Heating and Temperature
Publisher: American Meteorological Society
Abstract: he seasonal cycle of the heating of the atmosphere is divided into a component due to direct solar absorption in the atmosphere and a component due to the flux of energy from the surface to the atmosphere via latent, ...
Processes Controlling the Mean Tropical Pacific Precipitation Pattern. Part II: The SPCZ and the Southeast Pacific Dry Zone
Publisher: American Meteorological Society
Abstract: The nature of the South Pacific convergence zone (SPCZ) is addressed by focusing on the dry (and cool) zone bounded by it and the coast of South America through numerical experiments. As shown in a companion paper, this ...
Processes Controlling the Mean Tropical Pacific Precipitation Pattern. Part I: The Andes and the Eastern Pacific ITCZ
Publisher: American Meteorological Society
Abstract: The question of why the intertropical convergence zone (ITCZ) is generally north of the equator in the tropical Pacific is addressed. Experiments with an atmospheric general circulation model coupled to idealized representations ...