Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 3981-4000 of 5084
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Estimation of Rainfall Drop Size Distributions from Dual-Frequency Wind Profiler Spectra Using Deconvolution and a Nonlinear Least Squares Fitting Technique
(American Meteorological Society, 2002)This paper compares two different analysis approaches for dual-frequency (VHF and UHF) wind profiler precipitation retrievals. The first technique is based on a general deconvolution process to remove broadening effects ... -
Profiler Contributions to Tropical Rainfall Measuring Mission (TRMM) Ground Validation Field Campaigns
(American Meteorological Society, 2002)Doppler radar profilers are widely used for routine measurement of wind, especially in the lower troposphere. The same profilers with minor modifications are useful tools for precipitation research. Specifically, the ... -
Calibrating Cylindrical Hot-Film Anemometer Sensors
(American Meteorological Society, 1986)We report the results of 82 separate calibrations of cylindrical, platinum hot-film anemometer sensors in air. The calibrations for each sensor involved a determination of its temperature-resistance characteristics, a study ... -
The Retrieval of Stratus Cloud Droplet Effective Radius with Cloud Radars
(American Meteorological Society, 2002)In situ samples of cloud droplets by aircraft in Oklahoma in 1997, the Surface Heat Budget of the Arctic Ocean (SHEBA)/First ISCCP Regional Experiment (FIRE)-Arctic Cloud Experiment (ACE) in 1998, and various other locations ... -
PREFACE
(American Meteorological Society, 2002) -
CORRIGENDUM
(American Meteorological Society, 2002) -
The Effect of Instrument Polarization Sensitivity on Sea Surface Remote Sensing with Infrared Spectroradiometers
(American Meteorological Society, 2002)The sensitivity of Fourier transform infrared spectroradiometers to the polarization state of incident radiance can become significant in radiometric measurements of a partially polarized source such as the sea surface. ... -
Autonomous Above-Water Radiance Measurements from an Offshore Platform: A Field Assessment Experiment
(American Meteorological Society, 2002)An autonomous system for making above-water radiance measurements has been produced by adding a new measurement scenario to a CIMEL CE-318 sun photometer. The new system, called the Sea-viewing Wide Field-of-view Sensor ... -
Deep Velocity Profiling Using Lowered Acoustic Doppler Current Profilers: Bottom Track and Inverse Solutions
(American Meteorological Society, 2002)Lowered acoustic Doppler current profilers (LADCPs) have matured from an experimental instrument to an operational hydrographic tool to study ocean dynamics. The data processing, however, is still in a rather primitive ... -
A New Free-Fall Profiler for Measuring Biophysical Microstructure
(American Meteorological Society, 2002)This paper evaluates the performance of a newly developed free-falling microstructure profiler. The instrument is equipped with standard turbulence sensors for measuring turbulent velocity shear and temperature gradient, ... -
Determining Turbulent Vertical Velocity, and Fluxes of Heat and Salt with an Autonomous Underwater Vehicle
(American Meteorological Society, 2002)The authors show that vertical turbulent fluxes in the upper ocean can be measured directly with an autonomous underwater vehicle (AUV). A horizontal profile of vertical water velocity is obtained by applying a Kalman ... -
Scale Utilization and Optimization from Wavelet Analysis for Data Assimilation: SUgOiWADAi
(American Meteorological Society, 2002)The second generation of a new approach to data assimilation where wavelet analysis is used for error estimation is presented here. The first generation is known as EEWADAi. This modified and optimized method uses wavelet ... -
Effects of Rain Rate and Wind Magnitude on SeaWinds Scatterometer Wind Speed Errors
(American Meteorological Society, 2002)Rain within the footprint of the SeaWinds scatterometer on the QuikSCAT satellite causes more significant errors than existed with its predecessor, the NASA scatterometer (NSCAT) on Advanced Earth Observing Satellite-I ... -
Simulated Atmospheric Rime Icing of Some Wind Speed Sensors
(American Meteorological Society, 1986)Four commercially available wind speed sensors have been tested in an icing wind tunnel to determine the relative susceptibility of each to atmospheric icing and to determine the influence of ire accumulations upon the ... -
The Use of Phased-Array Doppler Sonars near Shore
(American Meteorological Society, 2002)Phased-array Doppler sonars (PADS) have been used to probe an area several hundred meters on a side with 8-m spatial resolution, sampling every second or less with under 2 cm s?1 rms velocity error per sample. Estimates ... -
Assimilating XBT Data into HYCOM
(American Meteorological Society, 2002)A scheme is presented for assimilating expendable bathythermographic data into HYCOM, an oceanic circulation model featuring a hybrid vertical coordinate. The scheme is fully multivariate, using observations of temperature ... -
A New Shadow-Ring Device for Measuring Diffuse Solar Radiation at the Surface
(American Meteorological Society, 2002)A new shadow-ring device for measuring diffuse solar radiation at the surface is presented. In this device the seasonal variation of shadow is followed by moving the detector horizontally. This unique characteristic ... -
An Automated Brightband Height Detection Algorithm for Use with Doppler Radar Spectral Moments
(American Meteorological Society, 2002)Because knowledge of the melting level is critical to river forecasters and other users, an objective algorithm to detect the brightband height from profiles of radar reflectivity and Doppler vertical velocity collected ... -
Use of Three-Dimensional Reflectivity Structure for Automated Detection and Removal of Nonprecipitating Echoes in Radar Data
(American Meteorological Society, 2002)This study aims at assessing the potential of anomalous propagation conditions to occur, reviews past attempts to mitigate ground clutter contamination of radar data resulting from anomalous signal propagation, and presents ... -
A Surface Wind Model–Based Method to Estimate Rain-Induced Radar Path Attenuation over Ocean
(American Meteorological Society, 2002)The rainfall retrieved using the Tropical Rainfall Measuring Mission (TRMM) precipitation radar (PR) depends on estimating the radar signal path-integrated attenuation using the surface reference technique (SRT). This ...