Journal of the Atmospheric Sciences: Recent submissions
Now showing items 1401-1420 of 13215
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Barotropic and Baroclinic Eddy Feedbacks in the Midlatitude Jet Variability and Responses to Climate Change–Like Thermal Forcings
(American Meteorological Society, 2016)tudies have suggested that the persistence in the meridional vacillation of the midlatitude jet (i.e., annular mode time scale) in comprehensive climate models is related to the model biases in climatological jet latitude, ... -
Testing Atmospheric Oxidation in an Alabama Forest
(American Meteorological Society, 2016)he chemical species emitted by forests create complex atmospheric oxidation chemistry and influence global atmospheric oxidation capacity and climate. The Southern Oxidant and Aerosol Study (SOAS) provided an opportunity ... -
Droplet Concentration and Spectral Broadening in Southeast Pacific Stratocumulus Clouds
(American Meteorological Society, 2016)everal airborne field experiments have been conducted to verify model descriptions of cloud droplet activation. Measurements of cloud condensation nuclei and updraft are inputs to a parcel model that predicts droplet ... -
Axisymmetric Tornado Simulations at High Reynolds Number
(American Meteorological Society, 2016)his study is the first in a series that investigates the effects of turbulence in the boundary layer of a tornado vortex. In this part, axisymmetric simulations with constant viscosity are used to explore the relationships ... -
Tropical–Extratropical Interactions with the MJO Skeleton and Climatological Mean Flow
(American Meteorological Society, 2016)implified asymptotic models are developed to investigate tropical?extratropical interactions. Two kinds of interactions are illustrated in the model: (i) MJO initiation through extraction of energy from barotropic Rossby ... -
Unraveling the Teleconnection Mechanisms that Induce Wintertime Temperature Anomalies over the Northern Hemisphere Continents in Response to the MJO
(American Meteorological Society, 2016)ignificant extratropical surface air temperature variations arise as a result of teleconnections induced by the Madden?Julian oscillation (MJO). The authors elucidate the detailed physical processes responsible for the ... -
Accuracy of Rotational and Divergent Kinetic Energy Spectra Diagnosed from Flight-Track Winds
(American Meteorological Society, 2016)nder assumptions of horizontal homogeneity and isotropy, one may derive relations between rotational or divergent kinetic energy spectra and velocities along one-dimensional tracks, such as might be measured by aircraft. ... -
Review of Aerosol–Cloud Interactions: Mechanisms, Significance, and Challenges
(American Meteorological Society, 2016)ver the past decade, the number of studies that investigate aerosol?cloud interactions has increased considerably. Although tremendous progress has been made to improve the understanding of basic physical mechanisms of ... -
Meteorological Monographs and Special Collections
(American Meteorological Society, 2016) -
The Rapid Intensification of Hurricane Karl (2010): New Remote Sensing Observations of Convective Bursts from the Global Hawk Platform
(American Meteorological Society, 2016)he evolution of rapidly intensifying Hurricane Karl (2010) is examined from a suite of remote sensing observations during the NASA Genesis and Rapid Intensification Processes (GRIP) field experiment. The novelties of this ... -
Impacts of Vertical Structure of Large-Scale Vertical Motion in Tropical Climate: Moist Static Energy Framework
(American Meteorological Society, 2016)nteractions between cumulus convection and its large-scale environment have been recognized as crucial to the understanding of tropical climate and its variability. In this study, the moist static energy (MSE) budget is ... -
Improvement of a Cloud Microphysics Scheme for a Global Nonhydrostatic Model Using TRMM and a Satellite Simulator
(American Meteorological Society, 2016)he cloud and precipitation simulated by a global nonhydrostatic model with a 3.5-km horizontal resolution, the Nonhydrostatic Icosahedral Atmospheric Model (NICAM), are evaluated using the Tropical Rainfall Measuring Mission ... -
Evaporative and Radiative Cooling in POST Stratocumulus
(American Meteorological Society, 2016)uoyancy reversal by evaporative cooling in entrainment holes has a minimal influence on stratocumulus (Sc) observed during the Physics of Stratocumulus Top (POST) aircraft field study held off the California coast in 2008. ... -
An Investigation of the Presence of Atmospheric Rivers over the North Pacific during Planetary-Scale Wave Life Cycles and Their Role in Arctic Warming
(American Meteorological Society, 2016)eretofore, the tropically excited Arctic warming (TEAM) mechanism put forward that localized tropical convection amplifies planetary-scale waves, which transport sensible and latent heat into the Arctic, leading to an ... -
Seasonal and Intraseasonal Variability of Mesoscale Convective Systems over the South Asian Monsoon Region
(American Meteorological Society, 2016)easonal and intraseasonal differences in mesoscale convective systems (MCSs) over South Asia are examined using A-Train satellites, a ground-based lightning network, and reanalysis fields. Premonsoon (April?May) MCSs occur ... -
Dynamics and Predictability of the Intensification of Hurricane Edouard (2014)
(American Meteorological Society, 2016)he dynamics and predictability of the intensification of Hurricane Edouard (2014) are explored through a 60-member convection-permitting ensemble initialized with an ensemble Kalman filter that assimilates dropsondes ... -
Influence of the Self-Consistent Regional Ensemble Background Error Covariance on Hurricane Inner-Core Data Assimilation with the GSI-Based Hybrid System for HWRF
(American Meteorological Society, 2016)n initial vortex spindown, or strong adjustment to the structure and intensity of a hurricane?s initial vortex, presents a significant problem in hurricane forecasting, as with the NCEP Hurricane Weather Research and ... -
The Response of an Idealized Atmosphere to Orographic Forcing: Zonal versus Meridional Propagation
(American Meteorological Society, 2016)dry atmospheric general circulation model is forced with large-scale, Gaussian orography in an attempt to isolate a regime in which the model responds linearly to orographic forcing and then to study the departures from ... -
On the Development of Double Warm-Core Structures in Intense Tropical Cyclones
(American Meteorological Society, 2016)his study examines the formation of a double warm-core (DWC) structure in intense tropical cyclones (TCs) that was captured in almost all supertyphoon cases during the 2012?14 real-time typhoon forecasts in the northwestern ... -
The Impact of Effective Buoyancy and Dynamic Pressure Forcing on Vertical Velocities within Two-Dimensional Updrafts
(American Meteorological Society, 2016)his research develops simple diagnostic expressions for vertical acceleration dw/dt and vertical velocity w within updrafts that account for effective buoyancy and the dynamic pressure gradient force. Effective buoyancy ...