Journal of the Atmospheric Sciences: Recent submissions
Now showing items 1501-1520 of 13215
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Precipitation-Top Heights of Heavy Orographic Rainfall in the Asian Monsoon Region
(American Meteorological Society, 2016)ver coastal mountain ranges of the Asian monsoon region, heavy orographic rainfall is frequently associated with low precipitation-top heights (PTHs). This leads to conspicuous underestimation of rainfall using microwave ... -
Storm-Track Shifts under Climate Change: Toward a Mechanistic Understanding Using Baroclinic Mean Available Potential Energy
(American Meteorological Society, 2016)onal-mean storm-track shifts in response to perturbations in climate occur even in idealized simulations of dry atmospheres with axisymmetric forcing. Nonetheless, a generally accepted theory of the mechanisms controlling ... -
The Propagation of Tsunami-Generated Acoustic–Gravity Waves in the Atmosphere
(American Meteorological Society, 2016)sunami-generated acoustic?gravity waves have been observed to propagate in the atmosphere up to the ionosphere, where they have an impact on the total electron content. The authors simulate numerically the propagation of ... -
Tropical Cyclone–Relative Environmental Helicity and the Pathways to Intensification in Shear
(American Meteorological Society, 2015)Tropical cyclone?relative environmental helicity (TCREH) is a measure of how the wind vector changes direction with height, and it has been shown to modulate the rate at which tropical cyclones (TCs) develop both in idealized ... -
Understanding Anomalous Eddy Vorticity Forcing in North Atlantic Oscillation Events
(American Meteorological Society, 2016)his study proposes an anomalous eddy vorticity forcing (EVF) decomposing procedure to investigate physical mechanisms responsible for the formation of the anomalous EVF associated with North Atlantic Oscillation (NAO) ... -
Angular Effect of Undetected Clouds in Infrared Window Radiance Observations: Aircraft Experimental Analyses
(American Meteorological Society, 2016)his paper furthers previous investigations into the zenith angular effect of cloud contamination within infrared (IR) window radiance observations commonly used in the retrieval of environmental data records (EDRs). Here ... -
Perspectives on Moist Baroclinic Instability: Implications for the Growth of Monsoon Depressions
(American Meteorological Society, 2016)ittle is known about the genesis and growth mechanisms of monsoon depressions, despite the great importance of these storms for the hydrological cycle of the Asian?Australian monsoon region. Of the few theoretical studies ... -
Sea Spray Generation in Very High Winds
(American Meteorological Society, 2016)uantifying the amount and rate of sea spray production at the ocean surface is critical to understanding the effect spray has on atmospheric boundary layer processes (e.g., tropical cyclones). Currently, only limited ... -
Dynamics of Upper-Level Frontogenesis in Baroclinic Waves
(American Meteorological Society, 2016)his paper reports a diagnosis of the structure and dynamics of upper-level fronts (ULFs) simulated with a high-resolution Weather Research and Forecasting Model with diabatic heating versus one without diabatic heating. ... -
Orographic Influence on Basic Flow and Cyclone Circulation and Their Impacts on Track Deflection of an Idealized Tropical Cyclone
(American Meteorological Society, 2016)series of idealized numerical experiments and vorticity budget analyses is performed to examine several mechanisms proposed in previous studies to help understand the orographic influence on track deflection over a mesoscale ... -
An Ensemble Approach to Investigate Tropical Cyclone Intensification in Sheared Environments. Part II: Ophelia (2011)
(American Meteorological Society, 2015)he mechanisms leading to tropical cyclone (TC) intensification amid moderate vertical wind shear can vary from case to case, depending on the vortex structure and the large-scale conditions. To search for similarities ... -
Stochastic Convection Parameterization with Markov Chains in an Intermediate-Complexity GCM
(American Meteorological Society, 2016)onditional Markov chain (CMC) models have proven to be promising building blocks for stochastic convection parameterizations. In this paper, it is demonstrated how two different CMC models can be used as mass flux closures ... -
Human-Driven Atmospheric Deposition of N and P Controls on the East Mediterranean Marine Ecosystem
(American Meteorological Society, 2016)he historical and future impacts of atmospheric deposition of inorganic nitrogen (N) and phosphorus (P) on the marine ecosystem in the east Mediterranean Sea are investigated by using a 1D coupled physical? biogeochemical ... -
The Impact of GCM Dynamical Cores on Idealized Sudden Stratospheric Warmings and Their QBO Interactions
(American Meteorological Society, 2016)he paper demonstrates that sudden stratospheric warmings (SSWs) can be simulated in an ensemble of dry dynamical cores that miss the typical SSW forcing mechanisms like moist processes, land?sea contrasts, or topography. ... -
A Lagrangian View of Moisture Dynamics during DYNAMO
(American Meteorological Society, 2015)olumn water vapor (CWV) is studied using data from the Dynamics of the Madden?Julian Oscillation (DYNAMO) field experiment. A distinctive moist mode in tropical CWV probability distributions motivates the work. The Lagrangian ... -
Coherent Structures in the Boundary and Cloud Layers: Role of Updrafts, Subsiding Shells, and Environmental Subsidence
(American Meteorological Society, 2016)oherent structures, such as updrafts, downdrafts/shells, and environmental subsidence in the boundary and cloud layers of shallow convection, are investigated using a new classification method. Using large-eddy simulation ... -
Anvil Productivities of Tropical Deep Convective Clusters and Their Regional Differences
(American Meteorological Society, 2016)he anvil productivities of tropical deep convection are investigated and compared among eight climatological regions using 4 yr of collocated and combined CloudSat and CALIPSO data. For all regions, the convective clusters ... -
Tropical Upper-Tropospheric Potential Vorticity Intrusions during Sudden Stratospheric Warmings
(American Meteorological Society, 2016)he intrusion of lower-stratospheric extratropical potential vorticity into the tropical upper troposphere in the weeks surrounding the occurrence of sudden stratospheric warmings (SSWs) is examined. The analysis reveals ... -
On the Dynamics of the Formation of the Kelvin Cat’s-Eye in Tropical Cyclogenesis. Part II: Numerical Simulation
(American Meteorological Society, 2016)shallow-water model is used to study the role of critical layers in tropical cyclogenesis. Forced and unforced problems of disturbances on a parabolic jet associated with weak basic-state meridional potential vorticity ... -
Levitation Diffusion Chamber Measurements of the Mass Growth of Small Ice Crystals from Vapor
(American Meteorological Society, 2016)levitation diffusion chamber designed to examine the mass growth from the vapor of small ice particles (diameter < 100 ?m) at ambient pressure (?970 hPa) and low temperature (T < ?30°C) is presented. The diffusion chamber ...