Journal of the Atmospheric Sciences: Recent submissions
Now showing items 3601-3620 of 13215
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Slow Manifolds and Invariant Sets of the Primitive Equations
(American Meteorological Society, 2010)The authors review, in a geophysical setting, several recent mathematical results on the forced?dissipative hydrostatic primitive equations with a linear equation of state in the limit of strong rotation and stratification, ... -
Climate Sensitivity via a Nonparametric Fluctuation–Dissipation Theorem
(American Meteorological Society, 2011)he fluctuation?dissipation theorem (FDT) has been suggested as a method of calculating the response of the climate system to a small change in an external parameter. The simplest form of the FDT assumes that the probability ... -
Dynamics of Midlatitude Tropopause Height in an Idealized Model
(American Meteorological Society, 2011)his paper investigates the factors that determine the equilibrium state, and in particular the height and structure of the tropopause, in an idealized primitive equation model forced by Newtonian cooling in which the eddies ... -
Short-Wave Signatures of Stratospheric Mountain Wave Breaking
(American Meteorological Society, 2010)Recent stratospheric mountain wave measurements over the Sierra Nevada indicate that downgoing secondary waves may be common or even ubiquitous in large wave events. Because of their short wavelengths, they may dominate ... -
An Idealized Cloud-Resolving Framework for the Study of Midlatitude Diurnal Convection over Land
(American Meteorological Society, 2011)his paper introduces an idealized cloud-resolving modeling (CRM) framework for the study of midlatitude diurnal convection over land. The framework is used to study the feedbacks among soil, boundary layer, and diurnal ... -
Cloud-Resolving Simulations of Deep Convection over a Heated Mountain
(American Meteorological Society, 2010)Cloud-resolving numerical simulations of airflow over a diurnally heated mountain ridge are conducted to explore the mechanisms and sensitivities of convective initiation under high pressure conditions. The simulations are ... -
A Cloud-Resolving Model with an Adaptive Vertical Grid for Boundary Layer Clouds
(American Meteorological Society, 2010)ccurate cloud-resolving model simulations of cloud cover and cloud water content for boundary layer clouds are difficult to achieve without vertical grid spacing well below 100 m, especially for inversion-topped stratocumulus. ... -
How Does the Vertical Profile of Baroclinicity Affect the Wave Instability?
(American Meteorological Society, 2010)he growth rate of baroclinic instability waves is generalized in terms of wave?mean flow interactions, with an emphasis on the influence of the vertical profile of baroclinicity. The wave energy is converted from the zonal ... -
Impact of Secondary Eyewall Heating on Tropical Cyclone Intensity Change
(American Meteorological Society, 2010)The primary goal of this study is to explore the factors that might influence the intensity change of tropical cyclones (TCs) associated with secondary eyewall replacement. Concentric eyewall structures in TCs with and ... -
On the Use of Two-Dimensional Incompressible Flow to Study Secondary Eyewall Formation in Tropical Cyclones
(American Meteorological Society, 2010)Previous studies have offered hypotheses for the mechanisms that lead to secondary eyewall formation in tropical cyclones by using two-dimensional incompressible flow. Those studies represented the convection-induced ... -
The Quasi-Biennial Oscillation in a Double CO2 Climate
(American Meteorological Society, 2010)The effects of anticipated twenty-first-century global climate change on the stratospheric quasi-biennial oscillation (QBO) have been studied using a high-resolution version of the Model for Interdisciplinary Research on ... -
Numerical Study of Horizontal Shear Instability Waves along Narrow Cold Frontal Rainbands
(American Meteorological Society, 2010)he effects of variations in low-level ambient vertical shear and horizontal shear on the alongfront variability of narrow cold frontal rainbands (NCFRs) that propagate into neutral and slightly unstable environments are ... -
Aerosol Indirect Effects on Tropical Convection Characteristics under Conditions of Radiative–Convective Equilibrium
(American Meteorological Society, 2010)he impacts of enhanced aerosol concentrations such as those associated with dust intrusions on the trimodal distribution of tropical convection have been investigated through the use of large-domain (10 000 grid points), ... -
What is the Mechanism for the Modification of Convective Cloud Distributions by Land Surface–Induced Flows?
(American Meteorological Society, 2010)The aim of this study is to determine the mechanism that modulates the initiation of convection within convergence zones caused by land surface?induced mesoscale flows. An idealized modeling approach linked quantitatively ... -
A Robust Mechanism for Strengthening of the Brewer–Dobson Circulation in Response to Climate Change: Critical-Layer Control of Subtropical Wave Breaking
(American Meteorological Society, 2010)limate models consistently predict a strengthened Brewer?Dobson circulation in response to greenhouse gas (GHG)-induced climate change. Although the predicted circulation changes are clearly the result of changes in ... -
Ice–Ice Collisions: An Ice Multiplication Process in Atmospheric Clouds
(American Meteorological Society, 2010)Ice in atmospheric clouds undergoes complex physical processes, interacting especially with radiation, which leads to serious impacts on global climate. After their primary production, atmospheric ice crystals multiply ... -
Effects of Charge Distribution in Thunderstorms on Lightning Propagation Paths in Darwin, Australia
(American Meteorological Society, 2010)he charge distributions in a thundercloud play an important role in the initiation and propagation of lightning discharges. To further understand the effects of charge distributions on lightning discharge, the authors ... -
Numerical Solution to Drop Coalescence/Breakup with a Volume-Conserving, Positive-Definite, and Unconditionally Stable Scheme
(American Meteorological Society, 2010)This paper discusses a new volume- and volume concentration?conserving, positive-definite, unconditionally stable iterative numerical scheme for solving temporary cloud/raindrop coalescence followed by breakup and the ... -
On the Use of Geometric Moments to Examine the Continuum of Sudden Stratospheric Warmings
(American Meteorological Society, 2010)The polar winter stratospheric vortex is a coherent structure that undergoes different types of deformation that can be revealed by the geometric invariant moments. Three moments are used?the aspect ratio, the centroid ... -
The Wavelength Dependence of the Gross Moist Stability and the Scale Selection in the Instability of Column-Integrated Moist Static Energy
(American Meteorological Society, 2010)Gross moist stability (GMS), a measure of how efficiently divergent flow exports column-integrated moist static energy (MSE), is a widely used quantity in current simplified models of the tropical mean circulation and ...