Journal of the Atmospheric Sciences: Recent submissions
Now showing items 1041-1060 of 13215
-
Reverse Engineering the Tropical Precipitation–Buoyancy Relationship
(American Meteorological Society, 2018)AbstractThe tropical precipitation?moisture relationship, characterized by rapid increases in precipitation for modest increases in moisture, is conceptually recast in a framework relevant to plume buoyancy and conditional ... -
Capturing Size and Intensity Changes of Hurricanes Irma and Maria (2017) from Polar-Orbiting Satellite Microwave Radiometers
(American Meteorological Society, 2018)AbstractA recently refined hurricane warm-core retrieval algorithm was applied to data from multiple polar-orbiting satellites that carry the Advanced Technology Microwave Sounder (ATMS) and the Advanced Microwave Sounding ... -
Comments on “Revisiting the Balanced and Unbalanced Aspects of Tropical Cyclone Intensification”
(American Meteorological Society, 2018) -
The Implications of an Idealized Large-Scale Circulation for Mechanical Work Done by Tropical Convection
(American Meteorological Society, 2018)AbstractA thermodynamic analysis is presented of an overturning circulation simulated by two cloud-resolving models, coupled by a weak temperature gradient parameterization. Taken together, they represent two separated ... -
The Diurnal Variability of Precipitating Cloud Populations during DYNAMO
(American Meteorological Society, 2018)AbstractThis study uses high-resolution rainfall estimates from the S-Polka radar during the DYNAMO field campaign to examine variability of the diurnal cycle of rainfall associated with MJO convection over the Indian ... -
Interactions between Water Vapor and Potential Vorticity in Synoptic-Scale Monsoonal Disturbances: Moisture Vortex Instability
(American Meteorological Society, 2018)AbstractSouth Asian monsoon low pressure systems, referred to as synoptic-scale monsoonal disturbances (SMDs), are convectively coupled cyclonic disturbances that are responsible for up to half of the total monsoon rainfall. ... -
Theoretical Analysis of the Entrainment–Mixing Process at Cloud Boundaries. Part I: Droplet Size Distributions and Humidity within the Interface Zone
(American Meteorological Society, 2018)AbstractThe problem of a complex entrainment?mixing process is analyzed by solving a diffusion?evaporation equation for an open region in the vicinity of the cloud?dry air interface. Upon normalization the problem is reduced ... -
Moisture and Moist Static Energy Budgets of South Asian Monsoon Low Pressure Systems in GFDL AM4.0
(American Meteorological Society, 2018)AbstractThe mechanisms that lead to the propagation of anomalous moisture and moist static energy (MSE) in monsoon low and high pressure systems, collectively referred to as synoptic-scale monsoonal disturbances (SMDs), ... -
Numerical Simulations of Two-Layer Flow past Topography. Part I: The Leeside Hydraulic Jump
(American Meteorological Society, 2018)AbstractLaboratory observations of the leeside hydraulic jump indicate it consists of a statistically stationary turbulent motion in an overturning wave. From the point of view of the shallow-water equations (SWE), the ... -
A Multiscale Asymptotic Theory of Extratropical Wave–Mean Flow Interaction
(American Meteorological Society, 2018)Abstract Multiscale asymptotic methods are used to derive wave activity equations for planetary- and synoptic-scale eddies and their interactions with a zonal mean flow. The eddies are assumed to be of small amplitude, and ... -
Using a Variability Factor to Account for Cloud Microphysical Inhomogeneity in Mesoscale Models
(American Meteorological Society, 2018)AbstractDifferent formulations of the joint probability distribution function (JPDF) based on large-eddy simulation (LES) studies of shallow cumulus and cumulus congestus clouds were evaluated. It was shown that inhomogeneity ... -
Sensitivity of the Brewer–Dobson Circulation and Polar Vortex Variability to Parameterized Nonorographic Gravity Wave Drag in a High-Resolution Atmospheric Model
(American Meteorological Society, 2018)AbstractThe role of parameterized nonorographic gravity wave drag (NOGWD) and its seasonal interaction with the resolved wave drag in the stratosphere has been extensively studied in low-resolution (coarser than 1.9° ? ... -
Atmospheric Response to SST Anomalies. Part I: Background-State Dependence, Teleconnections, and Local Effects in Winter
(American Meteorological Society, 2018)AbstractThe atmospheric response to SST anomalies is notoriously difficult to simulate and may be sensitive to model details and biases, particularly in midlatitudes. Studies have suggested that the response is particularly ... -
Implications of Nonlocal Transport and Conditionally Averaged Statistics on Monin–Obukhov Similarity Theory and Townsend’s Attached Eddy Hypothesis
(American Meteorological Society, 2018)AbstractAccording to Townsend?s hypothesis, so-called wall-attached eddies are the main contributors to turbulent transport in the atmospheric surface layer (ASL). This is also one of the main assumptions of Monin?Obukhov ... -
Explicit Prediction of Hail in a Long-Lasting Multicellular Convective System in Eastern China Using Multimoment Microphysics Schemes
(American Meteorological Society, 2018)AbstractDuring the afternoon of 28 April 2015, a multicellular convective system swept southward through much of Jiangsu Province, China, over about 7 h, producing egg-sized hailstones on the ground. The hailstorm event ... -
On the Scale Interactions that Dominate the Maintenance of a Persistent Heavy Rainfall Event: A Piecewise Energy Analysis
(American Meteorological Society, 2018)AbstractPersistent heavy rainfall events (PHREs) are the product of the combined effects of multiscale systems. A PHRE that occurred during the 2016 mei-yu season was selected to further the understanding of the scale ... -
Theoretical Expressions for the Ascent Rate of Moist Deep Convective Thermals
(American Meteorological Society, 2018)AbstractAn approximate analytic expression is derived for the ratio ? of the ascent rate of moist deep convective thermals and the maximum vertical velocity within them; ? is characterized as a function of two nondimensional ... -
Synoptic-Scale Zonal Available Potential Energy Increases in the Northern Hemisphere
(American Meteorological Society, 2018)AbstractAvailable potential energy (APE), a measure of the energy available for conversion to kinetic energy, has been previously applied to examine changes in baroclinic instability and seasonal changes in the general ... -
Is Condensation-Induced Atmospheric Dynamics a New Theory of the Origin of the Winds?
(American Meteorological Society, 2018)AbstractThe hypothesis of ?condensation-induced atmospheric dynamics? proposes that a previously unstudied force associated with condensation is the driver of atmospheric motions, explaining phenomena like cyclones, monsoon ... -
Interactions between Mesoscale and Submesoscale Gravity Waves and Their Efficient Representation in Mesoscale-Resolving Models
(American Meteorological Society, 2018)AbstractAs present weather forecast codes and increasingly many atmospheric climate models resolve at least part of the mesoscale flow, and hence also internal gravity waves (GWs), it is natural to ask whether even in such ...