Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 1181-1200 of 5084
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Direct Flux Measurements from Mobile Platforms at Sea: Motion and Airflow Distortion Corrections Revisited
(American Meteorological Society, 2015)hip-based measurements of wind speed and direct fluxes are affected by airflow distortion that can lead to a tilt of the wind vector as well as acceleration or deceleration of the wind speed. Direct flux measurements are ... -
Estimation of Finescale Rainfall Fields Using Broadcast TV Satellite Links and a 4DVAR Assimilation Method
(American Meteorological Society, 2015)his study proposes a method based on the use of a set of commercial satellite-to-Earth microwave links to rebuild finescale rainfall fields. Such microwave links exist all over the world and can be used to estimate the ... -
High-Resolution GNSS-Tracked Drifter for Studying Surface Dispersion in Shallow Water
(American Meteorological Society, 2014)he use of Global Navigation Satellite System (GNSS)-tracked Lagrangian drifters allows more realistic quantification of fluid motion and dispersion coefficients than Eulerian techniques because such drifters are analogs ... -
Evaluating Two Array Autocalibration Methods with Multifrequency HF Radar Current Measurements
(American Meteorological Society, 2015)ne pivotal factor affecting the accuracy of HF radar current measurements is the direction of arrival (DOA) estimation performance of the current signal. The beamforming technology or superresolution algorithm cannot always ... -
Addressing Spatial Variability of Surface-Layer Wind with Long-Range WindScanners
(American Meteorological Society, 2015)his paper presents an analysis of mean wind measurements from a coordinated system of long-range WindScanners. From individual scan patterns the mean wind field was reconstructed over a large area, and hence it highlights ... -
Bias Adjustment of AVHRR SST and Its Impacts on Two SST Analyses
(American Meteorological Society, 2014)ea surface temperature (SST) observations from satellite-based Advanced Very High Resolution Radiometer (AVHRR) instrument exhibit biases. Adjustments necessary for removing the AVHRR biases have been studied by progressive ... -
Surfzone Monitoring Using Rotary Wing Unmanned Aerial Vehicles
(American Meteorological Society, 2014)his study investigates the potential of rotary wing unmanned aerial vehicles (UAVs) to monitor the surfzone. This paper shows that these UAVs are extremely flexible surveying platforms that can gather near-continuous ... -
Thunderstorm Observation by Radar (ThOR): An Algorithm to Develop a Climatology of Thunderstorms
(American Meteorological Society, 2015)he Thunderstorm Observation by Radar (ThOR) algorithm is an objective and tunable Lagrangian approach to cataloging thunderstorms. ThOR uses observations from multiple sensors (principally multisite surveillance radar data ... -
A Method of Estimating Electric Fields above Electrified Clouds from Passive Microwave Observations
(American Meteorological Society, 2015)unique dataset of coincident high-altitude passive microwave and electric field observations taken by the NASA ER-2 aircraft is used to assess the feasibility of estimating electric fields above electrified clouds using ... -
A Fiber Optic Spectrometry System for Measuring Irradiance Distributions in Sea Ice Environments
(American Meteorological Society, 2014)fiber optic?based spectrometry system was developed to enable automated, long-term measurements of spectral irradiance in sea ice environments. This system utilizes a single spectrometer module that measures the irradiance ... -
Quality Control of Antenna Alignment and Receiver Calibration Using the Sun: Adaptation to Midrange Weather Radar Observations at Low Elevation Angles
(American Meteorological Society, 2015)quality control method for combined online monitoring of weather radar antenna pointing biases and receiver calibration using solar signals detected by an operational radar is adapted for application to midrange radar data ... -
Evaluations of the Spheroidal Particle Model for Describing Cloud Radar Depolarization Ratios of Ice Hydrometeors
(American Meteorological Society, 2015)nformation on ice cloud particle nonsphericity is important for many practical applications ranging from modeling the cloud radiation impact to remote sensing of hydrometeor microphysical properties. Scanning cloud radars, ... -
Kinematic GNSS Estimation of Zenith Wet Delay over a Range of Altitudes
(American Meteorological Society, 2015)tmospheric water vapor estimates from static ground-based Global Navigation Satellite System (GNSS) receivers are now operationally assimilated into numerical weather prediction models, either as total precipitable water ... -
Quality Assessment of HF Radar–Derived Surface Currents Using Optimal Interpolation
(American Meteorological Society, 2014)his study investigates the applicability of the optimal interpolation (OI) method proposed by Kim et al. for estimating ocean surface currents from high-frequency radar (HFR) in the northeastern Chukchi Sea, where HFR ... -
Developing and Evaluating Ice Cloud Parameterizations for Forward Modeling of Radar Moments Using in situ Aircraft Observations
(American Meteorological Society, 2015)bserving ice clouds using zenith pointing millimeter cloud radars is challenging because the transfer functions relating the observables to meteorological quantities are not uniquely defined. Here, the authors use a spectral ... -
Correction of Depth Bias in Upper-Ocean Temperature and Salinity Profiling Measurements from Airborne Expendable Probes
(American Meteorological Society, 2014)uring the Dynamics of Madden?Julian Oscillation (DYNAMO) Experiment in 2011, airborne expendable conductivity?temperature?depth (AXCTD) probes and airborne expendable bathythermographs (AXBTs) were deployed using NOAA?s ... -
How Does Drifter Position Uncertainty Affect Ocean Dispersion Estimates?
(American Meteorological Society, 2014)o develop methodologies to maximize the information content of Lagrangian data subject to position errors, synthetic trajectories produced by both a large-eddy simulation (LES) of an idealized submesoscale flow field and ... -
Evaluation of the FlowCapt Acoustic Sensor for the Aeolian Transport of Snow
(American Meteorological Society, 2015)lowCapt acoustic sensors, designed for measuring the aeolian transport of snow fluxes, are compared to the snow particle counter S7optical sensor, considered herein as the reference. They were compared in the French Alps ... -
Real-Time Guidance of Underwater Gliders Assisted by Predictive Ocean Models
(American Meteorological Society, 2014)n recent years, collecting scientific data from ocean environments has been increasingly undertaken by underwater gliders. For better navigation performance, the influence of flow on the navigation of underwater gliders ... -
A Semisupervised Robust Hydrometeor Classification Method for Dual-Polarization Radar Applications
(American Meteorological Society, 2014)ost of the recent hydrometeor classification schemes are based on fuzzy logic. When the input radar observations are noisy, the output classification could also be noisy, since the process is bin based and the information ...