Journal of the Atmospheric Sciences: Recent submissions
Now showing items 2661-2680 of 13215
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A Satellite Study of the Atmospheric Forcing and Response to Moist Convection over Tropical and Subtropical Oceans
(American Meteorological Society, 2011)atellite data are analyzed to explore the thermodynamic evolution of tropical and subtropical atmospheres prior and subsequent to moist convection in order to offer an observational test bed for convective adjustment, which ... -
Using the Sensitivity of Large-Eddy Simulations to Evaluate Atmospheric Boundary Layer Models
(American Meteorological Society, 2012)simple framework to study the sensitivity of atmospheric boundary layer (ABL) models to the large-scale conditions and forcings is introduced. This framework minimizes the number of parameters necessary to describe the ... -
Progress on Predicting the Breadth of Droplet Size Distributions Observed in Small Cumuli
(American Meteorological Society, 2011)modeling framework representing variations in droplet growth by condensation, resulting from different saturation histories experienced as a result of entrainment and mixing, is used to predict the breadth of droplet size ... -
Test of the Fixed Anvil Temperature Hypothesis
(American Meteorological Society, 2012)he fixed anvil temperature (FAT) hypothesis is examined based on the Aqua Moderate Resolution Imaging Spectroradiometer (MODIS)-based cloud-top temperature (CTT) in conjunction with the tropical atmospheric profiles and ... -
Is Missing Orographic Gravity Wave Drag near 60°S the Cause of the Stratospheric Zonal Wind Biases in Chemistry–Climate Models?
(American Meteorological Society, 2011)early all chemistry?climate models (CCMs) have a systematic bias of a delayed springtime breakdown of the Southern Hemisphere (SH) stratospheric polar vortex, implying insufficient stratospheric wave drag. In this study ... -
Using the Stochastic Multicloud Model to Improve Tropical Convective Parameterization: A Paradigm Example
(American Meteorological Society, 2011)espite recent advances in supercomputing, current general circulation models (GCMs) poorly represent the variability associated with organized tropical convection. A stochastic multicloud convective parameterization based ... -
Moist Hadley Circulation: Possible Role of Wave–Convection Coupling in Aquaplanet Experiments
(American Meteorological Society, 2011)quaplanet simulations for a given sea surface temperature (SST) are conducted to elucidate possible roles of transient variability in the Hadley circulation and the intertropical convergence zone (ITCZ). Their roles are ... -
Supersaturation Fluctuations in Cirrus Clouds Driven by Colored Noise
(American Meteorological Society, 2011)undamental properties of ice supersaturation variability in cirrus clouds are studied by means of an idealized probabilistic model. Damped supersaturation fluctuations are assumed to be exponentially correlated in time, ... -
Multiscale Waves in an MJO Background and Convective Momentum Transport Feedback
(American Meteorological Society, 2011)he authors use linear analysis for a simple model to study the evolution of convectively coupled waves (CCWs) in a background shear and background moisture mimicking the observed structure of the Madden?Julian oscillation ... -
Tropical Oceanic Hot Towers: Need They Be Undilute to Transport Energy from the Boundary Layer to the Upper Troposphere Effectively? An Answer Based on Trajectory Analysis of a Simulation of a TOGA COARE Convective System
(American Meteorological Society, 2011)his paper addresses questions resulting from the authors? earlier simulation of the 9 February 1993 Tropical Ocean Global Atmosphere Coupled Ocean?Atmosphere Research Experiment (TOGA COARE) squall line, which used updraft ... -
On Trade Wind Cumulus Cold Pools
(American Meteorological Society, 2011)hallow precipitating cumuli within the easterly trades were investigated using shipboard measurements, scanning radar data, and visible satellite imagery from 2 weeks in January 2005 of the Rain in Cumulus over the Ocean ... -
The Predictability of Stratospheric Warming Events: More from the Troposphere or the Stratosphere?
(American Meteorological Society, 2011)he roles of the stratosphere and the troposphere in determining the predictability of stratospheric final warming and sudden warming events are evaluated in an idealized atmospheric model. For each stratospheric warming ... -
Data Assimilation in Slow–Fast Systems Using Homogenized Climate Models
(American Meteorological Society, 2011)deterministic multiscale toy model is studied in which a chaotic fast subsystem triggers rare transitions between slow regimes, akin to weather or climate regimes. Using homogenization techniques, a reduced stochastic ... -
A Linear Theory of Three-Dimensional Land–Sea Breezes
(American Meteorological Society, 2012)and?sea breezes (LSBs) induced by diurnal differential heating are examined using a three-dimensional linear model employing fast Fourier transform with emphasis on the complex coastline shape and geometry, the earth?s ... -
The Tropospheric Response to Tropical and Subtropical Zonally Asymmetric Torques: Analytical and Idealized Numerical Model Results
(American Meteorological Society, 2011)he tropospheric response to prescribed tropical and subtropical zonally asymmetric torques, which can be considered as idealizations of vertical momentum transfers by orographic gravity waves or convection, is investigated. ... -
The Role of Planetary Waves in the Downward Influence of Stratospheric Final Warming Events
(American Meteorological Society, 2011)tratospheric final warming events are simulated in an idealized atmospheric model by imposing a winter-to-summer transition in radiative equilibrium temperature only in the stratosphere. Large ensembles of events are ... -
CORRIGENDUM
(American Meteorological Society, 2011) -
Abrupt Transition to Strong Superrotation Driven by Equatorial Wave Resonance in an Idealized GCM
(American Meteorological Society, 2011)ersistent superrotation is seen in the atmospheres of other terrestrial bodies (Venus, Titan) but not in that of present Earth, which is distinguished by equatorial easterlies. Nevertheless, superrotation has appeared in ... -
Routes of Transport across the Antarctic Polar Vortex in the Southern Spring
(American Meteorological Society, 2011)ransport in the lower stratosphere over Antarctica has been studied in the past by means of several approaches, such as contour dynamics or Lyapunov exponents. This paper examines the problem by means of a new Lagrangian ... -
Pathways for Communicating the Effects of Stratospheric Ozone to the Polar Vortex: Role of Zonally Asymmetric Ozone
(American Meteorological Society, 2011)mechanistic model that couples quasigeostrophic dynamics, radiative transfer, ozone transport, and ozone photochemistry is used to study the effects of zonal asymmetries in ozone (ZAO) on the model?s polar vortex. The ZAO ...