Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 741-760 of 5084
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(American Meteorological Society, 2017)AbstractAtmospheric motion vectors (AMVs) are derived operationally at EUMETSAT from the AVHRR/3 instrument on the Polar System satellite MetOp-A since 2011. The launch of MetOp-B in 2012 allowed for doubling of the ... -
Novel Methods for Optically Measuring Whitecaps under Natural Wave-Breaking Conditions in the Southern Ocean
(American Meteorological Society, 2016)AbstractTraditional methods for measuring whitecap coverage using digital video systems mounted to measure a large footprint can miss features that do not produce a high enough contrast to the background. Here, a method ... -
Monitoring the Absolute Calibration of a Polarimetric Weather Radar
(American Meteorological Society, 2017)AbstractThe absolute calibration of a dual-polarization radar of the German Weather Service is continuously monitored using the operational birdbath scan and collocated disdrometer measurements at the Hohenpeissenberg ... -
Creation of a Gridded Dataset for the Southern Ocean with a Topographic Constraint Scheme
(American Meteorological Society, 2016)AbstractThis study investigated a method for creating a climatological dataset with improved reproducibility and reliability for the Southern Ocean. Despite sparse observational sampling, the Southern Ocean has a dominant ... -
Staggered-PRT Sequences for Doppler Weather Radars. Part I: Spectral Analysis Using the Autocorrelation Spectral Density
(American Meteorological Society, 2016)AbstractThe autocorrelation spectral density (ASD) was introduced as a generalization of the classical periodogram-based power spectral density (PSD) and as an alternative tool for spectral analysis of uniformly sampled ... -
Surface Wave Impact When Simulating Midlatitude Storm Development
(American Meteorological Society, 2016)AbstractSurface gravity waves, present at the air?sea interface, can affect the momentum flux and heat fluxes by modifying turbulence in the lower layers of the atmosphere. How to incorporate wave impacts into model ... -
Correction of Dual-PRF Doppler Velocity Outliers in the Presence of Aliasing
(American Meteorological Society, 2017)AbstractIn Doppler weather radars, the presence of unfolding errors or outliers is a well-known quality issue for radial velocity fields estimated using the dual?pulse repetition frequency (PRF) technique. Postprocessing ... -
The NOAA FM-CW Snow-Level Radar
(American Meteorological Society, 2016)AbstractA vertically pointing radar for monitoring radar brightband height (BBH) has been developed. This new radar utilizes frequency-modulated continuous wave (FM-CW) techniques to provide high-resolution data at a ... -
Adaptive Range Oversampling Processing for Nontraditional Radar-Variable Estimators
(American Meteorological Society, 2017)AbstractAdaptive range oversampling processing can be used either to reduce the variance of radar-variable estimates without increasing scan times or to reduce scan times without increasing the variance of estimates. For ... -
Large Tank Evaluation of a GPS Wave Buoy for Wind Stress Measurements
(American Meteorological Society, 2017)AbstractThere exists considerable disagreement among the observed values of the drag coefficient CD. To develop a model of CD, the wind stress generally will be calculated from the eddy correlation method. A buoy is suitable ... -
X-Band Wave Radar for Coastal Upwelling Detection off the Southern Coast of Sicily
(American Meteorological Society, 2016)AbstractThe main aim of this work is to show the potentialities of an X-band radar system about the detection of the coastal upwelling phenomenon. This is made possible by means of the estimation of the sea surface current, ... -
A Trajectory Mapping Technique for the Visualization and Analysis of Three-Dimensional Flow in Supercell Storms
(American Meteorological Society, 2016)AbstractA visualization technique that allows simultaneous spatial analysis of complex flow behavior from thousands of Lagrangian trajectories is presented and tested using a high temporal and spatial resolution cloud ... -
Bragg Scatter Detection by the WSR-88D. Part II: Assessment of ZDR Bias Estimation
(American Meteorological Society, 2016)AbstractClear-air Bragg scatter (CABS) is a refractivity gradient return generated by turbulent eddies that operational Weather Surveillance Radar-1988 Doppler (WSR-88D) systems can detect. The randomly oriented nature of ... -
Bragg Scatter Detection by the WSR-88D. Part I: Algorithm Development
(American Meteorological Society, 2016)AbstractStudies have shown that echo returns from clear-air Bragg scatter (CABS) can be used to detect the height of the convective boundary layer and to assess the systematic differential reflectivity (ZDR) bias for a ... -
Characteristics of Stratospheric Winds over Jiuquan (41.1°N, 100.2°E) Using Rocketsonde Data in 1967–2004
(American Meteorological Society, 2017)AbstractStratospheric winds play a significant role in middle atmosphere dynamics, model research, and carrier rocket experiments. For the first time, 65 sets of rocket sounding experiments conducted at Jiuquan (41.1°N, ... -
Ice Crystal Sizes in High Ice Water Content Clouds. Part II: Statistics of Mass Diameter Percentiles in Tropical Convection Observed during the HAIC/HIWC Project
(American Meteorological Society, 2016)AbstractHigh ice water content (IWC) regions in mesoscale convective systems (MCSs) are a potential threat to commercial aviation, as they are suspected to cause in-service engine power-loss events and air data probe ... -
A New Method of Characterizing Flow Patterns of Vortices and Detecting the Centers of Vortices in a Numerical Wind Field
(American Meteorological Society, 2016)AbstractA vortex in a wind field is an important aspect of a weather system; vortices often result in hazardous weather, such as rainstorms, windstorms, and typhoons. As the availability of numerical meteorological data ... -
Storm Tracking via Tree Structure Representation of Radar Data
(American Meteorological Society, 2017)AbstractAn algorithm for automatic storm identification, tracking, and nowcasting using tree structure representation of radar reflectivity images is proposed. The algorithm aims to track and nowcast different kinds of ... -
WHOI SDSL Data-Link Project—Ethernet Telemetry through Sea Cables
(American Meteorological Society, 2012)AbstractA data telemetry technique for communicating over standard oceanographic sea cables that achieves a nearly 100-fold increase in bandwidth as compared to traditional systems has been recently developed and successfully ... -
Atmospheric Ice Particle Shape Estimates from Polarimetric Radar Measurements and In Situ Observations
(American Meteorological Society, 2017)AbstractA remote sensing approach to retrieve the degree of nonsphericity of ice hydrometeors using scanning polarimetric Ka-band radar measurements from a U.S. Department of Energy Atmospheric Radiation Measurement (ARM) ...