Journal of the Atmospheric Sciences: Recent submissions
Now showing items 3161-3180 of 13215
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Principal Component Analysis of Doppler Radar Data. Part I: Geometric Connections between Eigenvectors and the Core Region of Atmospheric Vortices
(American Meteorological Society, 2005)This is the first in a three-part series of papers that present the first applications of principal component analysis (PCA) to Doppler radar data. Although this novel approach has potential applications to many types of ... -
High-Resolution Simulation of Hurricane Bonnie (1998). Part II: Water Budget
(American Meteorological Society, 2006)The fifth-generation Pennsylvania State University?National Center for Atmospheric Research (PSU?NCAR) Mesoscale Model (MM5) is used to simulate Hurricane Bonnie at high resolution (2-km spacing) in order to examine budgets ... -
Momentum Flux Spectrum of Convectively Forced Gravity Waves: Can Diabatic Forcing Be a Proxy for Convective Forcing?
(American Meteorological Society, 2005)The momentum flux of convectively forced internal gravity waves is calculated using explicitly resolved model-simulated gravity wave data. The momentum flux in a control simulation with nonlinearity and cloud microphysical ... -
Observations of the Structure of Heavily Precipitating Marine Stratocumulus
(American Meteorological Society, 2005)The second research flight of the Second Dynamics and Chemistry of Marine Stratocumulus (DYCOMS-II) field study is analyzed. This case attracted attention because it combined the presence of high drizzle rates with the ... -
Large-Scale Waves in the Mesosphere and Lower Thermosphere Observed by SABER
(American Meteorological Society, 2005)Observations made by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument on board NASA?s Thermosphere?Ionosphere?Mesosphere Energetics and Dynamics (TIMED) satellite have been processed ... -
Doppler Profiler and Radar Observations of Boundary Layer Variability during the Landfall of Tropical Storm Gabrielle
(American Meteorological Society, 2006)Detailed observations of boundary layer structure were acquired on 14 September 2001, prior to and during the landfall of Tropical Storm Gabrielle. The Mobile Integrated Profiling System (MIPS) and the Shared Mobile ... -
Structure of Highly Sheared Tropical Storm Chantal during CAMEX-4
(American Meteorological Society, 2006)Tropical Storm Chantal during August 2001 was a storm that failed to intensify over the few days prior to making landfall on the Yucatan Peninsula. An observational study of Tropical Storm Chantal is presented using a ... -
A Vortical Hot Tower Route to Tropical Cyclogenesis
(American Meteorological Society, 2006)A nonhydrostatic cloud model is used to examine the thermomechanics of tropical cyclogenesis under realistic meteorological conditions. Observations motivate the focus on the problem of how a midtropospheric cyclonic vortex, ... -
Validation of Rain-Rate Estimation in Hurricanes from the Stepped Frequency Microwave Radiometer: Algorithm Correction and Error Analysis
(American Meteorological Society, 2006)Simultaneous observations by the lower fuselage (LF) radar, the tail (TA) radar, and the Stepped Frequency Microwave Radiometer (SFMR) on board the NOAA WP-3D aircraft are used to validate the rainfall rate estimates from ... -
Classification of Tropical Oceanic Precipitation using High-Altitude Aircraft Microwave and Electric Field Measurements
(American Meteorological Society, 2006)During the 1998 and 2001 hurricane seasons of the western Atlantic Ocean and Gulf of Mexico, the Advanced Microwave Precipitation Radiometer (AMPR), the ER-2 Doppler (EDOP) radar, and the Lightning Instrument Package (LIP) ... -
Overview of the Convection and Moisture Experiment (CAMEX)
(American Meteorological Society, 2006)This paper presents an overview of the Convection and Moisture Experiment (CAMEX), including the field operations, aircraft platforms and missions, instrumentation, and data acquired during 1998 and 2001 field campaigns. ... -
Ice Microphysics Observations in Hurricane Humberto: Comparison with Non-Hurricane-Generated Ice Cloud Layers
(American Meteorological Society, 2006)Measurements are presented that were acquired from the National Aeronautics and Space Administration (NASA) DC-8 aircraft during an intensive 3-day study of Tropical Storm/Hurricane Humberto on 22, 23, and 24 September ... -
Warm Core Structure of Hurricane Erin Diagnosed from High Altitude Dropsondes during CAMEX-4
(American Meteorological Society, 2006)A combination of multiaircraft and several satellite sensors were used to examine the core of Hurricane Erin on 10 September 2001, as part of the Fourth Convection and Moisture Experiment (CAMEX-4) program. During the first ... -
Rapid Filamentation Zones in Intense Tropical Cyclones
(American Meteorological Society, 2006)Intense tropical cyclones often possess relatively little convection around their cores. In radar composites, this surrounding region is usually echo-free or contains light stratiform precipitation. While subsidence is ... -
Numerical Simulation of Hurricane Bonnie (1998). Part II: Sensitivity to Varying Cloud Microphysical Processes
(American Meteorological Society, 2006)In this study, the effects of various cloud microphysics processes on the hurricane intensity, precipitation, and inner-core structures are examined with a series of 5-day explicit simulations of Hurricane Bonnie (1998), ... -
Potential Vorticity Structure of Simulated Hurricanes
(American Meteorological Society, 2006)To better understand the processes involved in tropical cyclone development, the authors simulate an axisymmetric tropical-cyclone-like vortex using a two-dimensional model based on nonhydrostatic dynamics, equilibrium ... -
Teleconnections from Tropics to Northern Extratropics through a Southerly Conveyor
(American Meteorological Society, 2005)Rossby wave propagation theory predicts that Rossby waves in a tropical easterly flow cannot escape from the Tropics to the extratropics. Here the authors show that a southerly flow component in the basic state (a southerly ... -
A Numerical Study of Hurricane Erin (2001). Part I: Model Verification and Storm Evolution
(American Meteorological Society, 2006)The fifth-generation Pennsylvania State University?National Center for Atmospheric Research (PSU?NCAR) Mesoscale Model (MM5) is used to simulate Hurricane Erin (2001) at high resolution (4-km spacing) from its early ... -
High-Resolution Simulation of Hurricane Bonnie (1998). Part I: The Organization of Eyewall Vertical Motion
(American Meteorological Society, 2006)The fifth-generation Pennsylvania State University?National Center for Atmospheric Research (PSU?NCAR) Mesoscale Model (MM5) is used to simulate Hurricane Bonnie at high resolution (2-km spacing) in order to examine how ... -
Impact of CAMEX-4 Datasets for Hurricane Forecasts Using a Global Model
(American Meteorological Society, 2006)This study explores the impact on hurricane data assimilation and forecasts from the use of dropsondes and remotely sensed moisture profiles from the airborne Lidar Atmospheric Sensing Experiment (LASE) system. It is shown ...