Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 1981-2000 of 5084
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Comparison of Buoy-Mounted and Bottom-Moored ADCP Performance at Gray’s Reef
(American Meteorological Society, 2007)Simultaneous ADCP profile measurements are compared over a 2-month period in late 2003. One set of measurements comes from a National Data Buoy Center (NDBC) buoy-mounted ADCP, the other from a bottom-mounted, upward-looking ... -
Estimation of Water Temperature of Large Lakes in Cold Climate Regions during the Period of Strong Coupling between Water and Air Temperature Fluctuations
(American Meteorological Society, 2007)Near-surface bulk water temperature measured in large northern lakes during the warm season with buoys can be characterized by three components: a slowly varying seasonal-/climate-related trend, fluctuations at the time ... -
Comparison of Different Techniques for the Measurement of Precipitation in Tropical Montane Rain Forest Regions
(American Meteorological Society, 2007)Characteristics of different precipitation measurements in a tropical mountain valley in southern Ecuador are compared in this study to determine potential errors. The instruments are used for different ecological purposes ... -
Historical Drifter Data and Statistical Prediction of Particle Motion: A Case Study in the Central Adriatic Sea
(American Meteorological Society, 2007)In this paper, a method to analyze historical surface drifter data is presented that is aimed at investigating particle evolution as a function of initial conditions. Maps of drifter concentration at different times are ... -
Validation and Error Analysis of OSCAR Sea Surface Currents
(American Meteorological Society, 2007)Comparisons of OSCAR satellite-derived sea surface currents with in situ data from moored current meters, drifters, and shipboard current profilers indicate that OSCAR presently provides accurate time means of zonal and ... -
A Gas Tension Device with Response Times of Minutes
(American Meteorological Society, 2006)The development and testing of a new, fast response, profiling gas tension device (GTD) that measures total dissolved air pressure is presented. The new GTD equilibrates a sample volume of air using a newly developed (patent ... -
New Method of Spatial Extrapolation of Meteorological Fields on the Mesoscale Level Using a Kalman Filter Algorithm for a Four-Dimensional Dynamic–Stochastic Model
(American Meteorological Society, 2007)A new method and an algorithm of spatial extrapolation of mesometeorological fields to a territory uncovered with observations are suggested. The algorithm uses a linear Kalman filter for a four-dimensional dynamic?stochastic ... -
An Improved QC Process for Temperature in the Daily Cooperative Weather Observations
(American Meteorological Society, 2007)TempVal is a spatial component of data quality assurance algorithms applied by the National Climatic Data Center (NCDC), and it has been used operationally for about 4 yr. A spatial regression test (SRT) approach was ... -
Sodar Measurements of Wing Vortex Strength and Position
(American Meteorological Society, 2007)A method is developed for robust real-time visualization of aircraft vortex spatial and temporal development based on measurement data from a line array of sodars. The method relies on using a potential-flow vortex model, ... -
Turbulence Anisotropy Determined by Wind Profiler Radar and Its Correlation with Rain Events in Montreal, Canada
(American Meteorological Society, 2007)Turbulence inhomogeneities at 3-m scales can be either isotropic or anisotropic, and the degree of anisotropy can be measured with VHF wind profiler radars. Studies over a period of two years in Montreal, Quebec, Canada, ... -
High-Resolution Measurement of Size Distributions of Asian Dust Using a Coulter Multisizer
(American Meteorological Society, 2007)A Coulter Multisizer, which is based on the electrical sensing zone (ESZ) or the Coulter principle, was used to measure the size distribution of Asian dust. Coulter Multisizer analysis provides high-resolution size ... -
Evaluation of Radar Rainfall Products: Lessons Learned from the NASA TRMM Validation Program in Florida
(American Meteorological Society, 2006)Evaluation of the Tropical Rainfall Measuring Mission (TRMM) satellite observations is conducted through a comprehensive ground validation (GV) program. Since the launch of TRMM in late 1997, standardized instantaneous and ... -
A Blended Satellite Total Precipitable Water Product for Operational Forecasting
(American Meteorological Society, 2007)Total precipitable water (TPW), the amount of water vapor in a column from the surface of the earth to space, is used by forecasters to predict heavy precipitation. In this paper, a process for blending TPW values retrieved ... -
Application of a Differential Fuel-Cell Analyzer for Measuring Atmospheric Oxygen Variations
(American Meteorological Society, 2007)A commercially available differential fuel-cell analyzer has been adapted to make field-based ppm-level measurements of atmospheric O2 variations. With the implementation of rapid calibrations and active pressure and flow ... -
Wideband Reception and Processing for Dual-Polarization Radars with Dual Transmitters
(American Meteorological Society, 2007)Oversampling pulsed Doppler radar returns at a rate larger than the pulse bandwidth, whitening the range samples, and subsequent averaging has been pursued as a potential way to decrease the measured standard deviation of ... -
Ground-Based Solar Absorption FTIR Spectroscopy: Characterization of Retrievals and First Results from a Novel Optical Design Instrument at a New NDACC Complementary Station
(American Meteorological Society, 2007)The authors describe the optical design of a high-resolution Fourier Transform Spectrometer (FTS), which serves as the primary instrument at the University of Toronto Atmospheric Observatory (TAO). The FTS is dedicated to ... -
Profiling the Lower Troposphere over the Ocean with Infrared Hyperspectral Measurements of the Marine-Atmosphere Emitted Radiance Interferometer
(American Meteorological Society, 2007)Measurements of the spectra of infrared emission from the atmosphere were taken by a Marine-Atmospheric Emitted Radiance Interferometer (M-AERI) deployed on the NOAA ship Ronald H. Brown during the Aerosol and Ocean Science ... -
Rainfall Profiling Using Atmospheric Radiation Measurement Program Vertically Pointing 8-mm Wavelength Radars
(American Meteorological Society, 2006)An attenuation-based method to retrieve vertical profiles of rainfall rate from vertically pointing Ka-band radar measurements has been refined and adjusted for use with the U.S. Department of Energy?s cloud radars deployed ... -
Correction of X-Band Radar Observation for Propagation Effects Based on the Self-Consistency Principle
(American Meteorological Society, 2006)New algorithms for rain attenuation correction of reflectivity factor and differential reflectivity are presented. Following the methodology suggested for the first time by Gorgucci et al., the new algorithms are developed ... -
Use of a Maximum Entropy Method as a Regularization Technique during the Retrieval of Trace Gas Profiles from Limb Sounding Measurements
(American Meteorological Society, 2006)The retrieval of trace gas profiles from radiance measurements of limb sounding instruments represents an inverse problem: vertical profiles of mixing ratios have to be extracted from sequences of horizontally measured ...