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RISInterannual Variability of the Upper Ocean in the Southeast Pacific Stratus Cloud Region
Publisher: American Meteorological Society
Abstract: Persistent stratus/stratocumulus cloud decks in the southeast Pacific near the coasts of Peru and northern Chile play an important role in regional and global climate variability. Interannual variability of the upper ocean ...
The Double-ITCZ Problem in IPCC AR4 Coupled GCMs: Ocean–Atmosphere Feedback Analysis
Publisher: American Meteorological Society
Abstract: This study examines the double?intertropical convergence zone (ITCZ) problem in the coupled general circulation models (CGCMs) participating in the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report ...
Doppler Radar Observations of Mesoscale Wind Divergence in Regions of Tropical Convection
Publisher: American Meteorological Society
Abstract: A simple new analysis method for large single-Doppler radar datasets is presented, using data from several tropical field experiments. A cylindrical grid is chosen, to respect both the geophysical importance of altitude ...
Stratocumulus Clouds in Southeastern Pacific Simulated by Eight CMIP5–CFMIP Global Climate Models
Publisher: American Meteorological Society
Abstract: his study examines the stratocumulus clouds and associated cloud feedback in the southeast Pacific (SEP) simulated by eight global climate models participating in phase 5 of the Coupled Model Intercomparison Project (CMIP5) ...
Radiation Budget of the Tropical Intraseasonal Oscillation
Publisher: American Meteorological Society
Abstract: This study examines the relationship between precipitation and radiative heating on intraseasonal time scales in the Tropics using collocated top-of-atmosphere (TOA) and surface radiative flux measurements from special ...
Zonal Momentum Budget of the Madden–Julian Oscillation: The Source and Strength of Equivalent Linear Damping
Publisher: American Meteorological Society
Abstract: Linear, dissipative models with resting base states are sometimes used in theoretical studies of the Madden?Julian oscillation (MJO). Linear mechanical damping in such models ranges from nonexistent to strong, since an ...
Variations of Northern Hemisphere Storm Track and Extratropical Cyclone Activity Associated with the Madden–Julian Oscillation
Publisher: American Meteorological Society
Abstract: AbstractThis study investigates the intraseasonal variations of the Northern Hemispheric storm track associated with the Madden?Julian oscillation (MJO) during the extended boreal winter (November?April) using 36 yr ...
What Are the Sources of Mechanical Damping in Matsuno–Gill-Type Models?
Publisher: American Meteorological Society
Abstract: The Matsuno?Gill model has been widely used to study the tropical large-scale circulations and atmosphere?ocean interactions. However, a common critique of this model is that it requires a strong equivalent linear mechanical ...
The Interaction of Clouds and Dry Air in the Eastern Tropical Pacific
Publisher: American Meteorological Society
Abstract: Cloud radar observations of eastern Pacific intertropical convergence zone cloud vertical structure are interpreted in light of soundings, 100-km-scale divergence profiles calculated from precipitation radar Doppler ...
Stratiform Precipitation, Vertical Heating Profiles, and the Madden–Julian Oscillation
Publisher: American Meteorological Society
Abstract: The observed profile of heating through the troposphere in the Madden?Julian oscillation (MJO) is found to be very top heavy: more so than seasonal-mean heating and systematically more so than all of the seven models for ...