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The Coupled Ocean—Atmosphere Modeling Problem in the Tropical Pacific and Asian Monsoon Regions
Publisher: American Meteorological Society
Abstract: Two ocean formulations, one a simple, 50-m slab ocean and another a coarse-resolution global ocean general circulation model (GCM), are coupled to a global atmospheric GCM. To determine what part of the simulation errors ...
Seasonal Cycle Forcing of El Niño-Southern Oscillation in a Global, Coupled Ocean-Atmosphere GCM
Publisher: American Meteorological Society
Abstract: Recent advances in computer power and climate modeling capability have provided the opportunity for several modeling groups to undertake extended integrations with global coupled ocean-atmosphere climate models that allow ...
A Reexamination of the Mechanism of the Semiannual Oscillation in the Southern Hemisphere
Publisher: American Meteorological Society
Abstract: The cause of the semiannual oscillation (SAO) at middle and high southern latitudes, proposed by van Loon, is reexamined using observations and general circulation model (GCM) simulations. The model results and the more ...
The South Asian Monsoon and the Tropospheric Biennial Oscillation
Publisher: American Meteorological Society
Abstract: A mechanism is described that involves the south Asian monsoon as an active part of the tropospheric biennial oscillation (TBO) described in previous studies. This mechanism depends on coupled land?atmosphere?ocean ...
The Annual Cycle and Interannual Variability in the Tropical Pacific and Indian Ocean Regions
Publisher: American Meteorological Society
Abstract: The annual cycle of outgoing longwave radiation (OLR), clouds, precipitation and sea level pressure is studied from satellite and station data in the tropical Indian and Pacific sectors. A region of heavy convection, termed ...
Tropical-Midlatitude Interactions in the Indian and Pacific Sectors of the Southern Hemisphere
Publisher: American Meteorological Society
Abstract: Observations and three General Circulation Model (GCW) simulations are analyzed to study interannual processes and interactions involved in the tropical Indian and Pacific sectors and higher southern latitudes. Major ...
Characteristics of Surface Current Flow Inferred from a Global Ocean Current Data Set
Publisher: American Meteorological Society
Abstract: A seasonal global ocean-current data set (OCDS) digitized on a 5° grid from long-term mean shipdrift-derived currents from pilot charts is presented and described. Annual zonal means of v-component currents show subtropical ...
A Calculation of Ocean Heat Storage and Effective Ocean Surface Layer Depths for the Northern Hemisphere
Publisher: American Meteorological Society
Abstract: In the hierarchy of simple ocean formulations available for coupling to atmospheric GCMs, a scheme whereby ocean surface-layer depths vary geographically and seasonally is deemed better than a fixed depth layer at all ...
A Coupled Air-Sea Biennial Mechanism in the Tropical Indian and Pacific Regions: Role of the Ocean
Publisher: American Meteorological Society
Abstract: Variations in the upper-ocean beat content are part of a mechanism to explain biennial signals in the tropical Indian and Pacific ocean regions. The mechanism involves modulations of the annual cycle of convection and ...
Modification of Surface Fluxes from Component Models in Global Coupled Models
Publisher: American Meteorological Society
Abstract: The present generation of global coupled ocean?atmosphere GCMs contains considerable systematic errors both in terms of net surface heat flux and simulated SSTs. Here, a global coupled GCM is used to illustrate how systematic ...