Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 2261-2280 of 5084
-
The Use of Millimeter Doppler Radar Echoes to Estimate Vertical Air Velocities in the Fair-Weather Convective Boundary Layer
(American Meteorological Society, 2005)Vertical velocity characteristics of the optically clear convective boundary layer (CBL) are examined by means of profiling airborne radar data collected in the central Great Plains during the International H2O Project, ... -
Comparison of Near–Real Time Estimates of Integrated Water Vapor Derived with GPS, Radiosondes, and Microwave Radiometer
(American Meteorological Society, 2005)In this study, the authors compare the integrated water vapor (IWV) retrieved with a global positioning system (GPS) receiver, radiosondes (RS), and a microwave radiometer (MWR) using data collected simultaneously during ... -
Computation of Domain-Averaged Irradiance Using Satellite-Derived Cloud Properties
(American Meteorological Society, 2005)The respective errors caused by the gamma-weighted two-stream approximation and the effective thickness approximation for computing the domain-averaged broadband shortwave irradiance are evaluated using cloud optical ... -
Maximum Likelihood Estimates of Vortex Parameters from Simulated Coherent Doppler Lidar Data
(American Meteorological Society, 2005)The performance of pulsed coherent Doppler lidar in estimating aircraft trailing wake vortices by scanning across the aircraft flight track is evaluated using Monte Carlo lidar simulations of a simple vortex pair in both ... -
A Statistical Method for Correcting Salinity Observations from Autonomous Profiling Floats: An ARGO Perspective
(American Meteorological Society, 2005)The Profiling Autonomous Lagrangian Circulation Explorer (PALACE) float is used to implement the Array for Real-Time Geostrophic Oceanography (ARGO). This study presents a statistical approach to correct salinity measurement ... -
The Usefulness of In-Flight Measurements of Space Count to Improve Calibration of the AVHRR Solar Reflectance Bands
(American Meteorological Society, 2005)The solar reflectance bands (SRB; centered at ?1 = 0.63, ?2 = 0.83, and ?3A = 1.61 ?m) of the Advanced Very High Resolution Radiometers (AVHRR) flown on board NOAA satellites are often referred to as noncalibrated in-flight. ... -
The West Texas Mesonet: A Technical Overview
(American Meteorological Society, 2005)The West Texas Mesonet originated in 1999 as a project of Texas Tech University. The mesonet consists of 40 automated surface meteorological stations, two atmospheric profilers, and one upper-air sounding system. Each ... -
Constructing Three-Dimensional Multiple-Radar Reflectivity Mosaics: Examples of Convective Storms and Stratiform Rain Echoes
(American Meteorological Society, 2005)The advent of Internet-2 and effective data compression techniques facilitates the economic transmission of base-level radar data from the Weather Surveillance Radar-1988 Doppler (WSR-88D) network to users in real time. ... -
On the Positive Bias of Peak Horizontal Velocity from an Idealized Doppler Profiler
(American Meteorological Society, 2005)In the presence of 3D turbulence, peak horizontal velocity estimates from an idealized Doppler profiler are found to be positively biased due to an incomplete specification of the vertical velocity field. The magnitude of ... -
Use of a Neurovariational Inversion for Retrieving Oceanic and Atmospheric Constituents from Ocean Color Imagery: A Feasibility Study
(American Meteorological Society, 2005)This paper presents a neurovariational method for inverting satellite ocean-color signals. The method is based on a combination of neural networks and classical variational inversion. The radiative transfer equations are ... -
Motion Correction for Shipborne Turbulence Sensors
(American Meteorological Society, 2005)A method for removing ship motion from wind measurements using a simple and inexpensive strap-down system of accelerometers is described and analyzed. In slight seas, error analysis indicates that mean root-mean-square ... -
Retrieval of Cloud Properties for Partly Cloudy Imager Pixels
(American Meteorological Society, 2005)Retrievals of cloud properties from satellite imagery often invoke the assumption that the fields of view are overcast when cloud-contaminated, even though a significant fraction are only partially cloud-covered. The ... -
Using MM5 to Hindcast the Ocean Surface Forcing Fields over the Gulf of Maine and Georges Bank Region
(American Meteorological Society, 2005)The fifth-generation Pennsylvania State University?NCAR Mesoscale Model (MM5) is applied to the Gulf of Maine/Georges Bank (GoM/GB) region. This model is configured with two numerical domains with horizontal resolutions ... -
Correction Method for RS80-A Humicap Humidity Profiles and Their Validation by Lidar Backscattering Profiles in Tropical Cirrus Clouds
(American Meteorological Society, 2005)Routine radiosonde relative humidity (RH) measurements are not reliable as they are presently used in the global upper-air network. The new Lindenberg measuring and evaluation method, which provides RH profile measurements ... -
High Temporal Resolution Path-Average Rain Gauge with 50-GHz Band Microwave
(American Meteorological Society, 2005)Rain radar measures instantaneous spatial-average rainfall, while conventional rain gauges directly measure point rainfall with low temporal resolution. Thus differences in the resolution of the sensors create difficulties ... -
Detiding ADCP Data in a Highly Variable Shelf Sea: The Celtic Sea
(American Meteorological Society, 2005)This paper presents a comparison of two conventional detiding techniques carried out for ship-mounted acoustic Doppler current profiler (ADCP) data collected in the European shelf area of the Celtic Sea during the summer ... -
Lagrangian Data Assimilation in Multilayer Primitive Equation Ocean Models
(American Meteorological Society, 2005)Because of the increases in the realism of OGCMs and in the coverage of Lagrangian datasets in most of the world's oceans, assimilation of Lagrangian data in OGCMs emerges as a natural avenue to improve ocean state forecast ... -
A Wireless Network for Collection and Synthesis of Mobile Mesoscale Weather Observations
(American Meteorological Society, 2004)This paper reports the development of a wireless network of instrumented vehicles and aircraft for the real-time collection and synthesis of their mobile weather observations in mesoscale field experiments. The mobile ... -
A Laterally Averaged Nonhydrostatic Ocean Model
(American Meteorological Society, 2004)A laterally averaged nonhydrostatic model for stratified flow in dynamically narrow domains is presented. Averaging laterally yields the computational efficiency of a two-dimensional model, while retaining some effects ... -
Assimilating Coherent Doppler Lidar Measurements into a Model of the Atmospheric Boundary Layer. Part II: Sensitivity Analyses
(American Meteorological Society, 2004)A series of trials are performed to evaluate the sensitivity of a 4DVAR algorithm for retrieval of microscale wind and temperature fields from single-Doppler lidar data. These trials use actual Doppler lidar measurements ...