Journal of the Atmospheric Sciences: Recent submissions
Now showing items 4741-4760 of 13215
-
Leading Lyapunov Vectors of a Turbulent Baroclinic Jet in a Quasigeostrophic Model
(American Meteorological Society, 2003)Leading Lyapunov exponents and vectors are calculated for a turbulent baroclinic jet in a quasigeostrophic model with O(105) degrees of freedom. The leading exponent is close to 0.4 day?1, and the unstable subspace has ... -
CORRIGENDUM
(American Meteorological Society, 2003) -
Long-Range Dynamics of a Shallow Water Triad: Renormalization, Modulation, and Cyclogenesis
(American Meteorological Society, 2003)Long-time-range atmospheric variability has many sources, and nonlinear mode interactions could play an important role. This paper sets out to explore such internal mechanisms of the long-range variability for the rotating ... -
Characterizing Some of the Influences of the General Circulation on Subtropical Marine Boundary Layer Clouds
(American Meteorological Society, 2003)The seasonal and intraseasonal variability of boundary layer cloud in the subtropical eastern oceans is studied using combined data from the International Satellite Cloud Climatology Project and the European Centre for ... -
A New Perspective on Blocking
(American Meteorological Society, 2003)It is argued that the essential aspect of atmospheric blocking may be seen in the wave breaking of potential temperature (?) on a potential vorticity (PV) surface, which may be identified with the tropopause, and the ... -
An Accurate Spectral Nonorographic Gravity Wave Drag Parameterization for General Circulation Models
(American Meteorological Society, 2003)An accurate method of solution is developed for the Warner and McIntyre parameterization of nonorographic gravity wave drag for the case of hydrostatic dynamics in the absence of rotation. The new scheme is sufficiently ... -
Diffusion Versus Advective Rearrangement of a Circular Vortex Sheet
(American Meteorological Society, 2003) -
Stochastic Analysis of Southern and Pacific Ocean Sea Surface Winds
(American Meteorological Society, 2003)This paper shows that the synoptic variability of zonal and meridional midlatitude Pacific and Southern Ocean sea surface winds can be well described by a univariate stochastic dynamical system directly derived from data. ... -
Intrusions into the Tropical Upper Troposphere: Three-Dimensional Structure and Accompanying Ozone and OLR Distributions
(American Meteorological Society, 2003)The evolution and structure of stratospheric intrusions into the upper troposphere (UT) over the northern tropical Pacific is examined in terms of both potential vorticity (PV) and ozone (O3). Analysis of 20 years of ... -
Solar Activity and Cloud Opacity Variations: A Modulated Cosmic Ray Ionization Model
(American Meteorological Society, 2003)The observed correlation between global low cloud amount and the flux of high energy cosmic rays supports the idea that ionization plays a crucial role in tropospheric cloud formation. This idea is explored quantitatively ... -
Cloud Resolving Modeling of the ARM Summer 1997 IOP: Model Formulation, Results, Uncertainties, and Sensitivities
(American Meteorological Society, 2003)A new three-dimensional cloud resolving model (CRM) has been developed to study the statistical properties of cumulus convection. The model was applied to simulate a 28-day evolution of clouds over the Atmospheric Radiation ... -
Inertia–Gravity Wave and Neutral Eady Wave Trains Forced by Directionally Sheared Flow over Isolated Hills
(American Meteorological Society, 2003)Analytical solutions are obtained to the linearized equations describing a particular class of directionally sheared flow over isolated hills or ridges. The flows are characterized by constant buoyancy frequency and vertical ... -
Error Characteristics of the Atmospheric Correction Algorithms Used in Retrieval of Sea Surface Temperatures from Infrared Satellite Measurements: Global and Regional Aspects
(American Meteorological Society, 2003)A database of cotemporal, collocated satellite and in situ observations is used to examine the association between the brightness temperature differences measured by the thermal infrared channels (T45) of the Advanced Very ... -
Aggregation and Scaling of Ice Crystal Size Distributions
(American Meteorological Society, 2003)Ice particle size distributions (PSDs) can be scaled onto a single exponential distribution for a wide range of observed conditions as demonstrated using data from Atmospheric Research Measurement (ARM) cirrus uncinus, ... -
Extratropical Forcing of Convectively Coupled Kelvin Waves during Austral Winter
(American Meteorological Society, 2003)Observations are presented that link extratropical Rossby wave disturbances excited in the Southern Hemisphere subtropical jet to the initiation of convectively coupled Kelvin waves in the Pacific intertropical convergence ... -
Cirrus Cloud Properties from a Cloud-Resolving Model Simulation Compared to Cloud Radar Observations
(American Meteorological Society, 2003)Cloud radar data collected at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains site were used to evaluate the properties of cirrus clouds that occurred in a cloud-resolving model (CRM) simulation ... -
Effect of Short-Term Solar Ultraviolet Flux Variability in a Coupled Model of Photochemistry and Dynamics
(American Meteorological Society, 2003)Variability in the solar ultraviolet radiative flux is known to cause changes in the chemistry and dynamics of the middle and upper atmosphere. Specifically, the 27-day solar rotation signal in irradiance has been correlated ... -
The Fully Developed Superrotation Simulated by a General Circulation Model of a Venus-like Atmosphere
(American Meteorological Society, 2003)Formation and maintenance of the fully developed superrotation in the Venus atmosphere are investigated by using a Center for Climate System Research/National Institute for Environmental Study (CCSR/NIES) Venus-like ... -
A Process Study of the Dependence of Ice Crystal Absorption on Particle Geometry: Application to Aircraft Radiometric Measurements of Cirrus Cloud in the Terrestrial Window Region
(American Meteorological Society, 2003)The processes that contribute to the absorption of infrared radiation by atmospheric ice crystals are studied. The processes are separated into the geometric optics (i.e., refraction, internal, and external reflection) and ... -
The Gill Model and the Weak Temperature Gradient Approximation
(American Meteorological Society, 2003)The authors investigate the accuracy of the weak temperature gradient (WTG) approximation, in which the divergent flow is computed by an assumed balance between adiabatic cooling and diabatic heating, for a prototype linear ...