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RISAn Idealized Semi-Empirical Framework for Modeling the Madden–Julian Oscillation
Publisher: American Meteorological Society
Abstract: he authors present a simple semi-empirical model to explore the hypothesis that the Madden?Julian oscillation can be represented as a moisture mode destabilized by surface flux and cloud?radiative feedbacks. The model is ...
Moisture Modes and the Eastward Propagation of the MJO
Publisher: American Meteorological Society
Abstract: he authors discuss modifications to a simple linear model of intraseasonal moisture modes. Wind?evaporation feedbacks were shown in an earlier study to induce westward propagation in an eastward mean low-level flow in this ...
On the Coexistence of an Evaporation Minimum and Precipitation Maximum in the Warm Pool
Publisher: American Meteorological Society
Abstract: Climatologically, the equatorial western Pacific warm pool region is a local minimum in surface evaporation and a local maximum in precipitation. The moist static energy budget in this situation requires a collocated minimum ...
Moist Dynamics and Orographic Precipitation in Northern and Central California during the New Year’s Flood of 1997
Publisher: American Meteorological Society
Abstract: The dynamics of moist orographic flows during the January 1997 floods in northern and central California are investigated using numerical simulations computed with the fifth-generation Pennsylvania State University?National ...
educational affairs
Publisher: American Meteorological Society
Abstract: The authors describe a short, graduate radiation course that is based upon exercises with modern numerical radiation codes.
Poleward-Propagating Intraseasonal Monsoon Disturbances in an Intermediate-Complexity Axisymmetric Model
Publisher: American Meteorological Society
Abstract: A model of intermediate complexity based on quasi-equilibrium theory?a version of the quasi-equilibrium tropical circulation model with a prognostic atmospheric boundary layer, as well as two free-tropospheric modes in ...
Diffusion versus Nonlocal Models of Stratospheric Mixing, in Theory and Practice
Publisher: American Meteorological Society
Abstract: In zonally averaged chemical transport models of the stratosphere, quasi-isentropic mixing is represented by diffusion in latitude. However, it is fairly certain that the real mixing is to some extent nonlocal, so that the ...
Modeling the Interaction between Quasigeostrophic Vertical Motion and Convection in a Single Column
Publisher: American Meteorological Society
Abstract: single-column modeling approach is proposed to study the interaction between convection and large-scale dynamics using the quasigeostrophic (QG) framework. This approach extends the notion of ?parameterization of large-scale ...
Direct Diagnoses of Stratosphere–Troposphere Exchange
Publisher: American Meteorological Society
Abstract: This study discusses the direct diagnosis of stratosphere?troposphere exchange. The method introduced by Wei is applied to the Goddard Earth Observation System assimilated dataset. In many respects, the results generally ...