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RISSynoptic Wave Perturbations and Convective Systems over Equatorial Africa
Publisher: American Meteorological Society
Abstract: Spectral analysis of the outgoing longwave radiation (OLR) time series over equatorial Africa reveals large oscillations of the convection with periods of between 3 and 6 days. In March and April, when the intertropical ...
Shallow Meridional Circulations in the Tropical Atmosphere
Publisher: American Meteorological Society
Abstract: A shallow meridional circulation (SMC) in the tropical atmosphere features a low-level (e.g., 700 hPa) flow that is in the opposite direction to the boundary layer monsoon or trade wind flow and is distinct from the ...
Seasonal Variations of Subtropical Precipitation Associated with the Southern Annular Mode
Publisher: American Meteorological Society
Abstract: easonal variations of subtropical precipitation anomalies associated with the southern annular mode (SAM) are explored for the period 1979?2011. In all seasons, high-polarity SAM, which refers to a poleward-shifted eddy-driven ...
Climatology and Composite Evolution of Flash Drought over Australia and Its Vegetation Impacts
Publisher: American Meteorological Society
Contrasting Southern Hemisphere Monsoon Response: MidHolocene Orbital Forcing versus Future Greenhouse Gas–Induced Global Warming
Publisher: American Meteorological Society
Abstract: Past changes of Southern Hemisphere (SH) monsoons are less investigated than their northern counterpart because of relatively scarce paleodata. In addition, projections of SH monsoons are less robust than in the Northern ...
Climatology and Variability of the Evaporative Stress Index and Its Suitability as a Tool to Monitor Australian Drought
Publisher: American Meteorological Society
A Relative Sea Surface Temperature Index for Classifying ENSO Events in a Changing Climate
Publisher: American Meteorological Society
Making Progress on the Operational Alerting of El Niño and La Niña in a Warming World
Publisher: American Meteorological Society
Dynamics and Predictability of El Niño–Southern Oscillation: An Australian Perspective on Progress and Challenges
Publisher: American Meteorological Society
Abstract: AbstractEl Niño and La Niña, the warm and cold phases of El Niño?Southern Oscillation (ENSO), cause significant year-to-year disruptions in global climate, including in the atmosphere, oceans, and cryosphere. Australia is ...
The “Year” of Tropical Convection (May 2008–April 2010): Climate Variability and Weather Highlights
Publisher: American Meteorological Society
Abstract: sentation of tropical convection remains a serious challenge to the skillfulness of our weather and climate prediction systems. To address this challenge, the World Climate Research Programme (WCRP) and The Observing System ...