Journal of the Atmospheric Sciences: Recent submissions
Now showing items 1321-1340 of 13215
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The Effect of Vertical Baroclinicity Concentration on Atmospheric Macroturbulence Scaling Relations
(American Meteorological Society, 2017)otivated by the expectation that under global warming upper-level meridional temperature gradients will increase while lower-level temperature gradients will decrease, the relations between the vertical structure of ... -
An improved small-angle approximation for forward scattering and its use in a fast two-component radiative transfer method
(American Meteorological Society, 2017)he vector radiative transfer equation is decomposed into two components: a forward and a diffuse component. The forward component is analytically solved with a small-angle approximation. The solution of the forward component ... -
Electrification and lightning in idealized simulations of a hurricane-like vortex subject to wind shear and sea surface temperature cooling.
(American Meteorological Society, 2017)elationships between intensity fluctuations, cloud microphysics, lightning variations and electrical structure within idealized tropical cyclones are investigated with the cloud-resolving Collaborative Model for Multiscale ... -
The Equivalent Barotropic Structure of Waves in the Tropical Atmosphere in the Western Hemisphere
(American Meteorological Society, 2017)ropical waves are generally considered to have a baroclinic structure. However, analysis of ERA-Interim and NOAA OLR data for the period 1979?2010 shows that in the equatorial and Northern Hemisphere near-equatorial regions ... -
On the Development of Above-Anvil Cirrus Plumes in Extratropical Convection
(American Meteorological Society, 2017)xpansive cirrus clouds present above the anvils of extratropical convection have been observed in satellite and aircraft-based imagery for several decades. Despite knowledge of their occurrence, the precise mechanisms and ... -
Cold Pools and Their Influence on the Tropical Marine Boundary Layer
(American Meteorological Society, 2017)old pools dominate the surface temperature variability observed over the central Indian Ocean (0°, 80°E) for 2 months of research cruise observations in the Dynamics of the Madden?Julian Oscillation (DYNAMO) experiment in ... -
Large Contribution of Coarse Mode to Aerosol Microphysical and Optical Properties: Evidence from Ground-Based Observations of a Transpacific Dust Outbreak at a High-Elevation North American Site
(American Meteorological Society, 2017)his work is motivated by previous studies of transatlantic transport of Saharan dust and the observed quasi-static nature of coarse mode aerosol with a volume median diameter (VMD) of approximately 3.5 ?m. The authors ... -
Corrigendum
(American Meteorological Society, 2016) -
The Microphysical Building Blocks of Low-Level Potential Vorticity Anomalies in an Idealized Extratropical Cyclone
(American Meteorological Society, 2017)iabatically generated low-level potential vorticity (PV) anomalies in extratropical cyclones enhance near-surface winds and influence the cyclone?s development. Positive and negative PV anomalies in the warm-frontal region ... -
Tornado Vortex Structure, Intensity, and Surface Wind Gusts in Large-Eddy Simulations with Fully Developed Turbulence
(American Meteorological Society, 2017)large-eddy simulation (LES) framework with an ?eddy injection? technique has been developed that ensures a majority of turbulent kinetic energy in numerically simulated tornado-like vortices is represented by resolved ... -
Rossby Wave Breaking and Transient Eddy Forcing during Euro-Atlantic Circulation Regimes
(American Meteorological Society, 2017)he occurrence of boreal winter Rossby wave breaking (RWB) along with the quantitative role of synoptic transient eddy momentum and heat fluxes directly associated with RWB are examined during the development of Euro-Atlantic ... -
Subcritical Destabilization of African Easterly Waves by Saharan Mineral Dust
(American Meteorological Society, 2017)theoretical framework is presented that exposes the radiative?dynamical relationships that govern the subcritical destabilization of African easterly waves (AEWs) by Saharan mineral dust (SMD) aerosols. The framework is ... -
Reply to “Comments on ‘Dynamics of Upper-Level Frontogenesis in Baroclinic Waves’”
(American Meteorological Society, 2016) -
Meandering Subtropical Jet and Precipitation over Summertime East Asia and the Northwestern Pacific
(American Meteorological Society, 2017)t has been revealed that in summertime, precipitation is enhanced to the south of the upper-level tropopausal potential vorticity contours, which are accompanied by instantaneous jets, over the eastern coastal region of ... -
Toward Quantifying the Climate Heat Engine: Solar Absorption and Terrestrial Emission Temperatures and Material Entropy Production
(American Meteorological Society, 2017)heat-engine analysis of a climate system requires the determination of the solar absorption temperature and the terrestrial emission temperature. These temperatures are entropically defined as the ratio of the energy ... -
Precipitation budget of the Madden-Julian Oscillation
(American Meteorological Society, 2017)olumn moisture and moist static energy (MSE) budgets have become common tools in the study of the processes responsible for the maintenance and evolution of the MJO. While many studies have shown that precipitation is ... -
Modeling condensation in deep convection
(American Meteorological Society, 2017)loud-scale models apply two drastically different methods to represent condensation of water vapor to form and grow cloud droplets. Maintenance of water saturation inside liquid clouds is assumed in the computationally ... -
Eddy Influences on the Strength of the Hadley Circulation: Dynamic and Thermodynamic Perspectives
(American Meteorological Society, 2016)he strength of the equinoctial Hadley circulation (HC) is investigated in idealized simulations conducted on an equatorial beta plane in which the zonal width of the domain is varied to either permit or suppress large-scale ... -
Scaling Laws for the Longitudinal Structure Function in the Atmospheric Surface Layer
(American Meteorological Society, 2017)caling laws for the longitudinal structure function in the atmospheric surface layer (ASL) are studied using dimensional analysis and matched asymptotics. Theoretical predictions show that the logarithmic scaling for the ...