Journal of the Atmospheric Sciences: Recent submissions
Now showing items 2561-2580 of 13215
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The Relationship between the Speed and the Latitude of an Eddy-Driven Jet in a Stirred Barotropic Model
(American Meteorological Society, 2012)stirred barotropic model on a sphere is used to investigate the relationship between the speed and the latitude of an eddy-driven jet. When the wind speed is increased in the model, the jet shifts poleward, despite the ... -
Weakly Forced Mock Walker Cells
(American Meteorological Society, 2012)ock Walker cells driven by weak sea surface temperature (SST) forcing are studied using planetary-scale cloud system?resolving simulations and a simplified framework that represents convection with its linear response ... -
CORRIGENDUM
(American Meteorological Society, 2011) -
Clouds Associated with the Madden–Julian Oscillation: A New Perspective from CloudSat
(American Meteorological Society, 2011)he evolution of total cloud cover and cloud types is composited across the Madden?Julian oscillation (MJO) using CloudSat data for June 2006?May 2010. Two approaches are used to define MJO phases: 1) the local phase is ... -
Squall Lines and Convectively Coupled Gravity Waves in the Tropics: Why Do Most Cloud Systems Propagate Westward?
(American Meteorological Society, 2012)he coupling between tropical convection and zonally propagating gravity waves is assessed through Fourier analysis of high-resolution (3-hourly, 0.5°) satellite rainfall data. Results show the familiar enhancement in power ... -
Exact Averaging of Atmospheric State and Flow Variables
(American Meteorological Society, 2012)new set of averaging rules is put forward that exactly determines the means of air temperature, mixing ratio, and velocity by incorporating weighting factors in accordance with physical conservation laws. For the temperature ... -
Thermodynamic Aspects of Tropical Cyclone Formation
(American Meteorological Society, 2012)he thermodynamic aspects of tropical cyclone (TC) formation near the center of the wave pouch, a region of approximately closed Lagrangian circulation within the wave critical layer, are examined through diagnoses of a ... -
Finite-Amplitude Lagrangian-Mean Wave Activity Diagnostics Applied to the Baroclinic Eddy Life Cycle
(American Meteorological Society, 2012)agrangian-mean wave activity diagnostics are applied to the nonlinear baroclinic eddy life cycle in a simple general circulation model of the atmosphere. The growth of these instabilities through baroclinic conversion of ... -
Gravity Waves Generated by Sheared Three-Dimensional Potential Vorticity Anomalies
(American Meteorological Society, 2012)he gravity waves (GWs) produced by three-dimensional potential vorticity (PV) anomalies are examined under the assumption of constant vertical shear, constant stratification, and unbounded domain. As in the two-dimensional ... -
Vortex–Vortex Interactions for the Maintenance of Blocking. Part I: The Selective Absorption Mechanism and a Case Study
(American Meteorological Society, 2012)new block maintenance mechanism, the selective absorption mechanism (SAM), is proposed. According to this mechanism, which is based on vortex?vortex interactions (i.e., the interactions between a blocking anticyclone and ... -
A Comparison of the Transition of Equatorial Waves between Two Types of ENSO Events in a Multilevel Model
(American Meteorological Society, 2012)he differences in the transitions of equatorial mixed Rossby?gravity (MRG) waves to off-equatorial tropical depression (TD)-type disturbances during ENSO events are investigated with a global baroclinic anomaly model. The ... -
Weather Regime Transitions and the Interannual Variability of the North Atlantic Oscillation. Part I: A Likely Connection
(American Meteorological Society, 2012)n this study, the relationship between weather regime transitions and the interannual variability of the North Atlantic Oscillation (NAO) in winter during 1978?2008 is examined by using a statistical approach. Four classical ... -
Effects of Additional Particles on Already Polluted Marine Stratus
(American Meteorological Society, 2012)he response of already polluted marine stratocumulus to additional particles was examined by studying the clouds where two ship tracks cross. Nearly 100 such crossings were collected and analyzed using Terra and Aqua ... -
Weather Regime Transitions and the Interannual Variability of the North Atlantic Oscillation. Part II: Dynamical Processes
(American Meteorological Society, 2012)n this study, attention is focused on identifying the dynamical processes that contribute to the negative North Atlantic Oscillation (NAO)? to positive NAO (NAO+) and NAO+ to NAO? transitions that occur during 1978?90 (P1) ... -
An Object-Based Approach to Assessing the Organization of Tropical Convection
(American Meteorological Society, 2012)he organization of tropical convection is assessed through an object-based analysis of satellite brightness temperature data Tb, a proxy for convective activity. The analysis involves the detection of contiguous cloud ... -
Analytic Solutions for Evolving Size Distributions of Spherical Crystals or Droplets Undergoing Diffusional Growth in Different Regimes
(American Meteorological Society, 2011)otivated by simulations of slow-growing contrail cirrus, the solution of the diffusional growth equations for a population of spherical ice crystals or water droplets is reexamined. For forcing specified by the evolution ... -
Atmospheric Dynamics Triggered by an Oceanic SST Front in a Moist Quasigeostrophic Model
(American Meteorological Society, 2011)o understand the atmospheric response to a midlatitude oceanic front, this paper uses a quasigeostrophic (QG) model with moist processes. A well-known, three-level QG model on the sphere has been modified to include such ... -
CORRIGENDUM
(American Meteorological Society, 2012) -
Influence of El Niño on Midtropospheric CO2 from Atmospheric Infrared Sounder and Model
(American Meteorological Society, 2012)he authors investigate the influence of El Niño on midtropospheric CO2 from the Atmospheric Infrared Sounder (AIRS) and the Model for Ozone and Related Chemical Tracers, version 2 (MOZART-2). AIRS midtropospheric CO2 data ... -
A Transition Mechanism for the Spontaneous Axisymmetric Intensification of Tropical Cyclones
(American Meteorological Society, 2012)mechanism for the transition of tropical cyclones (TCs) to the spontaneous rapid intensification (RI) phase is proposed based on numerical results of a three-dimensional full-physics model. The intensification phase of the ...