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RISThe Stability of NADMF under Mixed Boundary Conditions with an Improved Diagnosed Freshwater Flux
Publisher: American Meteorological Society
Abstract: Ocean general circulation models can be run using Haney boundary conditions (BCs) for both temperature and salinity, or using mixed boundary conditions, which consists of a Haney BC for temperature and a flux BC for salinity. ...
Interdecadal Variability Driven by Mismatch between Surface Flux Forcing and Oceanic Freshwater/Heat Transport
Publisher: American Meteorological Society
Abstract: The author describes a series of mechanistic experiments showing the generation of interdecadal variability in the Bryan-Cox ocean general circulation model driven by a constant two-dimensional freshwater or heat flux field ...
Realism of the Indian Ocean Dipole in CMIP5 Models: The Implications for Climate Projections
Publisher: American Meteorological Society
Abstract: n assessment of how well climate models simulate the Indian Ocean dipole (IOD) is undertaken using 20 coupled models that have partaken in phase 5 of the Coupled Model Intercomparison Project (CMIP5). Compared with models ...
Asymmetry in the IOD and ENSO Teleconnection in a CMIP5 Model Ensemble and Its Relevance to Regional Rainfall
Publisher: American Meteorological Society
Abstract: ecent studies have shown that the impact of the Indian Ocean dipole (IOD) on southern Australia occurs via equivalent barotropic Rossby wave trains triggered by convective heating in the tropical Indian Ocean. Furthermore, ...
An Observation-Based Assessment of Nonlinear Feedback Processes Associated with the Indian Ocean Dipole
Publisher: American Meteorological Society
Abstract: well-known feature of the Indian Ocean dipole (IOD) is its positive skewness, with cold sea surface temperature (SST) anomalies over the east pole (IODE) exhibiting a larger amplitude than warm SST anomalies. Several ...
Southeast Australia Autumn Rainfall Reduction: A Climate-Change-Induced Poleward Shift of Ocean–Atmosphere Circulation
Publisher: American Meteorological Society
Abstract: ince the 1950s annual rainfall over southeastern Australia (SEA) has decreased considerably with a maximum decline in the austral autumn season (March?May), particularly from 1980 onward. The understanding of SEA autumn ...
Trends in Southern Hemisphere Circulation in IPCC AR4 Models over 1950–99: Ozone Depletion versus Greenhouse Forcing
Publisher: American Meteorological Society
Abstract: Simulations by the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) models on the Southern Hemisphere (SH) circulation are assessed over the period 1950?99, focusing on the seasonality of the ...
Indo-Pacific–Induced Wave Trains during Austral Autumn and Their Effect on Australian Rainfall
Publisher: American Meteorological Society
Abstract: uring austral winter and spring, the El Niño?Southern Oscillation (ENSO) and the Indian Ocean dipole (IOD), individually or in combination, induce equivalent-barotropic Rossby wave trains, affecting midlatitude Australian ...
Compensation for the NADW Outflow in a Global Ocean General Circulation Model
Publisher: American Meteorological Society
Abstract: Recent observational study on the compensation for the North Atlantic Deep Water (NADW) outflow suggested that the compensation flow loops into the south Indian Ocean, whereby the compensating water gains heat and salt ...
Austral Summer Teleconnections of Indo-Pacific Variability: Their Nonlinearity and Impacts on Australian Climate
Publisher: American Meteorological Society
Abstract: n austral summer, El Niño?Southern Oscillation (ENSO) covaries with the Indian Ocean Basin Mode (IOBM) and with the southern annular mode (SAM). The present study addresses how the IOBM and the SAM modulate the impact of ...