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RISA Lagged Warm Event–Like Response to Peaks in Solar Forcing in the Pacific Region
Publisher: American Meteorological Society
Abstract: The forced response coincident with peaks in the 11-yr decadal solar oscillation (DSO) has been shown to resemble a cold event or La Niña?like pattern during December?February (DJF) in the Pacific region in observations ...
The Tropospheric Biennial Oscillation and Asian–Australian Monsoon Rainfall
Publisher: American Meteorological Society
Abstract: In the context of the Asian?Australian monsoon, the tropospheric biennial oscillation (TBO) is defined as the tendency for a relatively strong monsoon to be followed by a relatively weak one, and vice versa. Therefore the ...
Indian Monsoon GCM Sensitivity Experiments Testing Tropospheric Biennial Oscillation Transition Conditions
Publisher: American Meteorological Society
Abstract: Observational studies have shown that the tropospheric biennial oscillation (TBO) involves transitions that occur from northern spring [March?April?May (MAM)] to the Indian monsoon season [June?July?August?September (JJAS)] ...
Contributions of External Forcings to Southern Annular Mode Trends
Publisher: American Meteorological Society
Abstract: An observed trend in the Southern Hemisphere annular mode (SAM) during recent decades has involved an intensification of the polar vortex. The source of this trend is a matter of scientific debate with stratospheric ozone ...
Attribution of the Late-Twentieth-Century Rainfall Decline in Southwest Australia
Publisher: American Meteorological Society
Abstract: There was a dramatic decrease in rainfall in the southwest of Australia (SWA) in the mid-1960s. A statistical method, based on the idea of analogous synoptic situations, is used to help clarify the cause of the drying. The ...
Decadal Variability of Asian–Australian Monsoon–ENSO–TBO Relationships
Publisher: American Meteorological Society
Abstract: set of dynamically coupled ocean?atmosphere mechanisms has previously been proposed for the Asia?Pacific tropics to produce a dominant biennial component of interannual variability [the tropospheric biennial oscillation ...
The Asian–Australian Monsoon and El Niño–Southern Oscillation in the NCAR Climate System Model
Publisher: American Meteorological Society
Abstract: Features associated with the Asian?Australian monsoon system and El Niño?Southern Oscillation (ENSO) are described in the National Center for Atmospheric Research (NCAR) global coupled Climate System Model (CSM). Simulation ...
Effects of Black Carbon Aerosols on the Indian Monsoon
Publisher: American Meteorological Society
Abstract: A six-member ensemble of twentieth-century simulations with changes to only time-evolving global distributions of black carbon aerosols in a global coupled climate model is analyzed to study the effects of black carbon ...
Monsoon Regimes and Processes in CCSM4. Part II: African and American Monsoon Systems
Publisher: American Meteorological Society
Abstract: his is the second part of a two part series studying simulation characteristics of the Community Climate System Model, version 4 (CCSM4) for various monsoon regimes around the global tropics. Here, the West African, East ...
Mechanisms Contributing to the Warming Hole and the Consequent U.S. East–West Differential of Heat Extremes
Publisher: American Meteorological Society
Abstract: linear trend calculated for observed annual mean surface air temperatures over the United States for the second-half of the twentieth century shows a slight cooling over the southeastern part of the country, the so-called ...