Journal of the Atmospheric Sciences: Recent submissions
Now showing items 2361-2380 of 13215
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Effects of Convective Gravity Wave Drag in the Southern Hemisphere Winter Stratosphere
(American Meteorological Society, 2013)he excessively strong polar jet and cold pole in the Southern Hemisphere winter stratosphere are systematic biases in most global climate models and are related to underestimated wave drag in the winter extratropical ... -
The Relationships among Wind, Horizontal Pressure Gradient, and Turbulent Momentum Transport during CASES-99
(American Meteorological Society, 2013)elationships among the horizontal pressure gradient, the Coriolis force, and the vertical momentum transport by turbulent fluxes are investigated using data collected from the 1999 Cooperative Atmosphere?Surface Exchange ... -
Examination of Isentropic Circulation Response to a Doubling of Carbon Dioxide Using Statistical Transformed Eulerian Mean
(American Meteorological Society, 2012)esponses of the atmospheric circulation to a doubling of CO2 are examined in a global climate model, focusing on the circulation on both dry and moist isentropes. The isentropic circulations are reconstructed using the ... -
CORRIGENDUM
(American Meteorological Society, 2012) -
Chemical Characteristics of Aerosol Composition over the Yellow Sea and the East China Sea in Autumn
(American Meteorological Society, 2013)he total suspended particulate (TSP) samples over the Yellow Sea and the East China Sea were collected to determine the major compositions of water-soluble ionic species during two cruises in autumn 2007. The aerosol ... -
The Key Physical Parameters Governing Frictional Dissipation in a Precipitating Atmosphere
(American Meteorological Society, 2013)recipitation generates small-scale turbulent air flows?the energy of which ultimately dissipates to heat. The power of this process has previously been estimated to be around 2?4 W m?2 in the tropics: a value comparable ... -
The Mean Meridional Circulation of the Atmosphere Using the Mass above Isentropes as the Vertical Coordinate
(American Meteorological Society, 2013)he mean meridional circulation of the atmosphere is presented using the mass (more specifically, the pressure corresponding to the mass) above the isentrope of interest as the vertical coordinate. In this vertical coordinate, ... -
Process-Based Decomposition of the Global Surface Temperature Response to El Niño in Boreal Winter
(American Meteorological Society, 2012)his paper reports an attribution analysis that quantifies addible contributions to the observed temperature anomalies from radiative and nonradiative processes in terms of both amplitude and spatial pattern for the two ... -
Fluctuation–Dissipation Supplemented by Nonlinearity: A Climate-Dependent Subgrid-Scale Parameterization in Low-Order Climate Models
(American Meteorological Society, 2013)limate-system models use a multitude of parameterization schemes for small-scale processes. These should respond to externally forced climate variability in an appropriate manner so as to reflect the response of the ... -
Wave Activity for Large-Amplitude Disturbances Described by the Primitive Equations on the Sphere
(American Meteorological Society, 2013)seudomomentum and pseudoenergy are both measures of wave activity for disturbances in a fluid, relative to a notional background state. Together they give information on the propagation, growth, and decay of disturbances. ... -
Direct Numerical Simulation of Evaporative Cooling at the Lateral Boundary of Shallow Cumulus Clouds
(American Meteorological Society, 2013)his study investigates the dynamics of the subsiding shell at the lateral boundary of cumulus clouds, focusing on the role of evaporative cooling. Since the size of this shell is well below what large-eddy simulations can ... -
The Importance of Resolving Mesoscale Latent Heating in the North Atlantic Storm Track
(American Meteorological Society, 2013)heoretical, observational, and modeling studies have established an important role for latent heating in midlatitude cyclone development. Models simulate some contribution from condensational heating to cyclogenesis, even ... -
Interpretation of Multiwavelength-Retrieved Droplet Effective Radii for Warm Water Clouds in Terms of In-Cloud Vertical Inhomogeneity by Using a Spectral Bin Microphysics Cloud Model
(American Meteorological Society, 2013)his study examines the impact of in-cloud vertical inhomogeneity on cloud droplet effective radii (CDERs) of water-phase cloud retrieved from 1.6-, 2.1-, and 3.7-?m-band measurements (denoted by r1.6, r2.1, and r3.7, ... -
Numerical Simulations of Waves over Large Crater Topography in the Atmosphere
(American Meteorological Society, 2012)umerical simulations are used to investigate waves generated by flow over crater topography of diameter 100 km in an idealized atmosphere. The atmosphere is stratified with a constant buoyancy frequency profile and the ... -
The Effects of Explicit versus Parameterized Convection on the MJO in a Large-Domain High-Resolution Tropical Case Study. Part I: Characterization of Large-Scale Organization and Propagation
(American Meteorological Society, 2012)igh-resolution simulations over a large tropical domain (~20°S?20°N, 42°E?180°) using both explicit and parameterized convection are analyzed and compared to observations during a 10-day case study of an active Madden?Julian ... -
Slippery Thermals and the Cumulus Entrainment Paradox
(American Meteorological Society, 2013)n numerical simulations of growing congestus clouds, the maximum upward velocities w typically occur in compact toroidal vortices or thermals. These maxima were tracked, and the momentum budget was analyzed within spherical ... -
Determining Key Model Parameters of Rapidly Intensifying Hurricane Guillermo (1997) Using the Ensemble Kalman Filter
(American Meteorological Society, 2012)n this work the authors determine key model parameters for rapidly intensifying Hurricane Guillermo (1997) using the ensemble Kalman filter (EnKF). The approach is to utilize the EnKF as a tool only to estimate the parameter ... -
A Formal Analysis of the Feedback Concept in Climate Models. Part I: Exclusive and Inclusive Feedback Analyses
(American Meteorological Society, 2013)limate sensitivity and feedback are key concepts if the complex behavior of climate response to perturbation is to be interpreted in a simple way. They have also become an essential tool for comparing global circulation ... -
The Brewer–Dobson Circulation in a Changing Climate: Impact of the Model Configuration
(American Meteorological Society, 2012)ost climate models simulate a strengthening of the Brewer?Dobson circulation (BDC) under a changing climate. However, the magnitude of the trend as well as the underlying mechanisms varies significantly among the models. ... -
Coarse Graining the Vorticity Equation in the ECMWF Integrated Forecasting System: The Search for Kinetic Energy Backscatter
(American Meteorological Society, 2012)tochastic kinetic energy backscatter parameterization schemes are now widely used in ensemble prediction systems to account for random error associated with excessive dissipation and unrepresented energy backscatter in ...