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RISMoist Baroclinic Instability in the Development of North Pacific and South American Intermediate-Scale Disturbances
Publisher: American Meteorological Society
Abstract: The Mak parameterization of latent heat release is discussed using a finite difference version of a quasigeostrophic ?-plane model. It is found that his analytical results can be well reproduced with 20-layer vertical ...
A Diagnosis of a Long-Lasting Blocking Event over the Southeast Pacific Ocean
Publisher: American Meteorological Society
Abstract: A long-lasting blocking event occurred over the southeast Pacific Ocean near the west coast of South America from 29 July through 14 August 1986. This blocking happened in a recently found new region of blocking in the ...
Amazonian Deforestation: Impact of Global Warming on the Energy Balance and Climate
Publisher: American Meteorological Society
Abstract: coupled biosphere?atmosphere statistical?dynamical model is used to study the relative roles of the impact of the land change caused by tropical deforestation and global warming on energy balance and climate. Three experiments ...
Energetics of Winter Troughs Entering South America
Publisher: American Meteorological Society
Abstract: The energetics and behavior of midtropospheric troughs over the Southern Hemisphere and their relationship with South America surface cyclogenesis were studied during the winters of 1999?2003. All surface cyclogenesis ...
Comments on “Blocking over the South Pacific and Rossby Wave Propagation”
Publisher: American Meteorological Society
An Objective Study of 500-hPa Moving Troughs in the Southern Hemisphere
Publisher: American Meteorological Society
Abstract: The location and movement of 500-hPa troughs using an automated method are studied with data from a 24-yr period with the objective of determining the trough formation and dissipation regions in the Southern Hemisphere. ...
Genesis of the Northeast Brazil Upper-Tropospheric Cyclonic Vortex: A Primitive Equation Barotropic Instability Study
Publisher: American Meteorological Society
Abstract: The primitive equation barotropic unstable linear normal modes are computed using an eigenvalue approach for daily latitudinal profiles of zonal flow in the upper-tropospheric layer of 100?350 hPa before and after formation ...
Monsoonlike Circulations in a Zonally Averaged Numerical Model with Topography
Publisher: American Meteorological Society
Abstract: A primitive equation global zonally averaged general circulation model is used to study the effects of the topography on the atmospheric annual cycle. A smoothed zonally averaged topography that has a form similar to that ...
A Diagnosis of Rainfall over South America during the 1997/98 El Niño Event. Part I: Validation of NCEP–NCAR Reanalysis Rainfall Data
Publisher: American Meteorological Society
Abstract: A comparison between the National Centers for Environmental Predictions?National Center for Atmospheric Research (NCEP?NCAR) reanalysis rainfall data and the Agência Nacional de Energia Elétrica (ANEEL) rain gauge data ...
Rainy-Season Duration Estimated from OLR versus Rain Gauge Data and the 2001 Drought in Southeast Brazil
Publisher: American Meteorological Society
Abstract: Large precipitation deficits observed during the 2001 austral summer over the southeast region of Brazil contributed to the worsening of the energy crisis that was occurring in the country, with unprecedented social and ...