Journal of the Atmospheric Sciences: Recent submissions
Now showing items 1601-1620 of 13215
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A Spatiotemporal Stochastic Model for Tropical Precipitation and Water Vapor Dynamics
(American Meteorological Society, 2015)linear stochastic model is presented for the dynamics of water vapor and tropical convection. Despite its linear formulation, the model reproduces a wide variety of observational statistics from disparate perspectives, ... -
Upper-Tropospheric Low Richardson Number in Tropical Cyclones: Sensitivity to Cyclone Intensity and the Diurnal Cycle
(American Meteorological Society, 2015)igh-vertical-resolution rawinsondes were used to document the existence of low?bulk Richardson number (Rb) layers in tropical cyclones. The largest frequency of low Rb existed in the inner 200 km at the 13.5-km level. This ... -
Clouds and Water Vapor in the Tropical Tropopause Transition Layer over Mesoscale Convective Systems
(American Meteorological Society, 2015)bservations from A-Train satellites and other datasets show that mesoscale convective systems (MCSs) affect the water vapor and ice content of the tropical tropopause transition layer (TTL). The largest MCSs with radar ... -
The Cause of Internal Outflow Surges in a High-Resolution Simulation of the 8 May 2003 Oklahoma City Tornadic Supercell
(American Meteorological Society, 2015)high-resolution simulation of the 8 May 2003 Oklahoma tornadic supercell is analyzed to determine the origin of internal outflow surges within the low-level cold pool. The analyzed simulation has 50-m horizontal grid spacing ... -
Understanding Instabilities of Tropical Cyclones and Their Evolution with a Moist Convective Rotating Shallow-Water Model
(American Meteorological Society, 2015)nstabilities of hurricane-like vortices are studied with the help of a rotating shallow-water model, including the effects of moist convection. Linear stability analysis demonstrates that dominant unstable modes are mixed ... -
Sensitivity of Real-Data Simulations of the 3 May 1999 Oklahoma City Tornadic Supercell and Associated Tornadoes to Multimoment Microphysics. Part II: Analysis of Buoyancy and Dynamic Pressure Forces in Simulated Tornado-Like Vortices
(American Meteorological Society, 2015)ortex stretching by intense upward accelerations is a critical process for tornadogenesis and maintenance. Two high-resolution (250-m grid spacing) real-data simulations of the 3 May 1999 Oklahoma City, Oklahoma, supercell ... -
Comments on “A Semihydrostatic Theory of Gravity-Dominated Compressible Flow”
(American Meteorological Society, 2015) -
Relationships between Optimal Precursors Triggering NAO Onset and Optimally Growing Initial Errors during NAO Prediction
(American Meteorological Society, 2015)ased on a viewpoint that the North Atlantic Oscillation (NAO) is a nonlinear initial-value problem, the predictability of NAO event onset is studied through investigation of the relationship between the optimal precursor ... -
Anelastic and Compressible Simulation of Moist Dynamics at Planetary Scales
(American Meteorological Society, 2015)oist anelastic and compressible numerical solutions to the planetary baroclinic instability and climate benchmarks are compared. The solutions are obtained by applying a consistent numerical framework for discrete integrations ... -
Interhemispheric Variability of Earth’s Radiation
(American Meteorological Society, 2015)he variability of interhemispheric symmetry of Earth?s energy serves as an independent indicator of climate change. The analysis of updated data obtained from satellite measurements at the top of the atmosphere (TOA) shows ... -
Meteorological and Aerosol Effects on Marine Stratocumulus
(American Meteorological Society, 2015)his study investigates the effects of meteorological conditions and aerosols on marine stratocumulus in the southeastern Pacific using the Weather Research and Forecasting (WRF) Model. Two regimes with different temperature ... -
Offshore Propagation of Coastal Precipitation
(American Meteorological Society, 2015)his work focuses on the seaward propagation of coastal precipitation with and without mountainous terrain nearby. Offshore of India, diurnal propagation of precipitation is observed over the Bay of Bengal. On the eastern ... -
A Moist Static Energy Budget Analysis of Quasi-2-Day Waves Using Satellite and Reanalysis Data
(American Meteorological Society, 2015)moist static energy (MSE) budget analysis is applied to quasi-2-day waves to examine the effects of thermodynamic processes on the wave propagation mechanism. The 2-day waves are defined as westward inertia?gravity (WIG) ... -
Spectrum of Wave Forcing Associated with the Annual Cycle of Upwelling at the Tropical Tropopause
(American Meteorological Society, 2015)The zonal wavenumber spectrum of atmospheric wave forcing in the lower stratosphere is examined to understand the annual cycle of upwelling at the tropical tropopause. Tropopause upwelling is derived based on the wave ... -
Simulating the QBO in an Atmospheric General Circulation Model: Sensitivity to Resolved and Parameterized Forcing
(American Meteorological Society, 2016)he quasi-biennial oscillation (QBO) of tropical stratospheric zonal winds is simulated in an atmospheric general circulation model and its sensitivity to model parameters is explored. Vertical resolution in the lower ... -
On the Use of Advection Correction in Trajectory Calculations
(American Meteorological Society, 2015)n advection correction procedure is used to mitigate temporal interpolation errors in trajectory analyses constructed from gridded (in space and time) velocity data. The procedure is based on a technique introduced by ... -
Size Distributions of Hydrometeors: Analysis with the Maximum Entropy Principle
(American Meteorological Society, 2015)his paper proposes that the maximum entropy principle can be used for determining the drop size distribution of hydrometeors. The maximum entropy principle can be applied to any physical systems with many degrees of freedom ... -
Linking Phytoplankton Activity in Polynyas and Sulfur Aerosols over Zhongshan Station, East Antarctica
(American Meteorological Society, 2015)ultiple year-round aerosol samplings were conducted from February 2005 to October 2008 at Zhongshan Station, a research base in East Antarctica, to study methanesulfonic acid (MSA) and non-sea-salt sulfate (nss-SO42?). The ... -
Modeling Rossby Wave Breaking in the Southern Spring Stratosphere
(American Meteorological Society, 2015)ossby wave breaking (RWB) plays a central role in the evolution of stratospheric flows. The generation and evolution of RWB is examined in the simple dynamical framework of a one-layer shallow-water system on a sphere. The ... -
Gross Moist Stability Assessment during TOGA COARE: Various Interpretations of Gross Moist Stability
(American Meteorological Society, 2015)aily averaged TOGA COARE data are analyzed to investigate the convective amplification/decay mechanisms. The gross moist stability (GMS), which represents moist static energy (MSE) export efficiency by large-scale circulations ...