Journal of the Atmospheric Sciences: Recent submissions
Now showing items 1981-2000 of 13215
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Effects of Vertical Shears and Midlevel Dry Air on Tropical Cyclone Developments
(American Meteorological Society, 2013)set of idealized experiments using the Weather Research and Forecasting model (WRF) were designed to investigate the impacts of a midlevel dry air layer, vertical shear, and their combined effects on tropical cyclone (TC) ... -
Airborne Flux Measurements of BVOCs above Californian Oak Forests: Experimental Investigation of Surface and Entrainment Fluxes, OH Densities, and Damköhler Numbers
(American Meteorological Society, 2013)irborne flux measurements of isoprene were performed over the Californian oak belts surrounding the Central Valley. The authors demonstrate for the first time 1) the feasibility of airborne eddy covariance measurements of ... -
Corrigendum
(American Meteorological Society, 2013) -
Isentropic Analysis of Polar Cold Airmass Streams in the Northern Hemispheric Winter
(American Meteorological Society, 2014)n analysis method is proposed for polar cold airmass streams from generation to disappearance. It designates a threshold potential temperature ?T at around the turning point of the extratropical direct (ETD) meridional ... -
Gravity Wave–Fine Structure Interactions. Part II: Energy Dissipation Evolutions, Statistics, and Implications
(American Meteorological Society, 2013)art I of this paper employs four direct numerical simulations (DNSs) to examine the dynamics and energetics of idealized gravity wave?fine structure (GW?FS) interactions. That study and this companion paper were motivated ... -
Gravity Wave–Fine Structure Interactions. Part I: Influences of Fine Structure Form and Orientation on Flow Evolution and Instability
(American Meteorological Society, 2013)our idealized direct numerical simulations are performed to examine the dynamics arising from the superposition of a monochromatic gravity wave (GW) and sinusoidal linear and rotary fine structure in the velocity field. ... -
Evolution of Total Atmospheric Ozone from 1900 to 2100 Estimated with Statistical Models
(American Meteorological Society, 2014)tatistical models that account for the separate influences on total atmospheric ozone of ozone-depleting substances, anthropogenic greenhouse gases, and natural processes are formulated from the Merged Ozone Data (MOD V8 ... -
Water Budget and Precipitation Efficiency of Typhoon Morakot (2009)
(American Meteorological Society, 2013)n this study, the Weather Research and Forecasting model, version 3.2, with the finest grid size of 1 km is used to explicitly simulate Typhoon Morakot (2009), which dumped rainfall of more than 2600 mm in 3 days on Taiwan. ... -
Internal Gravity Waves in a Saturated Moist Neutral Atmosphere
(American Meteorological Society, 2013)his work is motivated by an unusual feature associated with the start-up of a moist nearly neutral atmospheric flow over a mountain ridge that was previously observed in a full-physics numerical model. In that study, the ... -
Initiation of a Runaway Greenhouse in a Cloudy Column
(American Meteorological Society, 2014)one-dimensional radiative?convective equilibrium model is used to investigate the influence of clouds on the onset of a runaway greenhouse under strong solar forcing. By comparing experiments with clear-sky conditions ... -
Evaluation of Modeled Stratocumulus-Capped Boundary Layer Turbulence with Shipborne Data
(American Meteorological Society, 2013)umerically modeled turbulence simulated by the Advanced Research Weather Research and Forecasting Model (ARW) is evaluated with turbulence measurements from NOAA?s high-resolution Doppler lidar on the NOAA Research Vessel ... -
How Does the Boundary Layer Contribute to Eyewall Replacement Cycles in Axisymmetric Tropical Cyclones?
(American Meteorological Society, 2013)hree diagnostic models of the axisymmetric tropical cyclone boundary layer, with different levels of approximation, are applied to the problem of tropical cyclones with concentric eyewalls. The outer eyewall is shown to ... -
Genesis of Hurricane Julia (2010) within an African Easterly Wave: Low-Level Vortices and Upper-Level Warming
(American Meteorological Society, 2013)hile a robust theoretical framework for tropical cyclogenesis (TCG) within African easterly waves (AEWs) has recently been developed, little work explores the development of low-level meso-?-scale vortices (LLVs) and a ... -
The Governing Dynamics of the Secondary Eyewall Formation of Typhoon Sinlaku (2008)
(American Meteorological Society, 2013)hrough successful convection-permitting simulations of Typhoon Sinlaku (2008) using a high-resolution nonhydrostatic model, this study examines the role of peripheral convection in the storm's secondary eyewall formation ... -
Homogeneity of the Subgrid-Scale Turbulent Mixing in Large-Eddy Simulation of Shallow Convection
(American Meteorological Society, 2013)his paper presents an approach to locally predict homogeneity of the subgrid-scale turbulent mixing in large-eddy simulation of shallow clouds applying double-moment warm-rain microphysics. The homogeneity of subgrid-scale ... -
A Novel Scheme for Parameterizing Aerosol Processing in Warm Clouds
(American Meteorological Society, 2013)novel two-moment bulk aerosol parameterization is derived from a state-of-the-art 2D bin microphysics model using power-law relationships and a semi-analytical technique for activation. The activation scheme predicts both ... -
Supersaturation Variability and Cirrus Ice Crystal Size Distributions
(American Meteorological Society, 2014)mall-scale dynamical variability affects atmospheric supersaturation and therefore the development of ice clouds via uptake of water vapor on ice crystals. This variability and its implications for ice growth are difficult ... -
The Effect of Moist Convection on the Tropospheric Response to Tropical and Subtropical Zonally Asymmetric Torques
(American Meteorological Society, 2013)ropospheric winds can be altered by vertical transfers of momentum due to orographic gravity waves and convection. Previous work showed that, in dry models, such zonally asymmetric torques produce a pattern of tropical ... -
Effects of Monsoon Trough Intraseasonal Oscillation on Tropical Cyclogenesis over the Western North Pacific
(American Meteorological Society, 2014)he effects of intraseasonal oscillation (ISO) of the western North Pacific (WNP) monsoon trough on tropical cyclone (TC) formation were investigated using the Advanced Research Weather Research and Forecasting (ARW) Model. ... -
Roles of the Synoptic-Scale Wave Train, the Intraseasonal Oscillation, and High-Frequency Eddies in the Genesis of Typhoon Manyi (2001)
(American Meteorological Society, 2014)xperiments using the Weather Research and Forecasting (WRF) Model were conducted to investigate the effects of multiscale motions on the genesis of Typhoon Manyi (2001) in the western North Pacific. The precursor signal ...