Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 3561-3580 of 5084
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Procedures to Improve the Accuracy of Airborne Doppler Radar Data
(American Meteorological Society, 2002)The navigation correction method proposed in Testud et al. (referred to as the THL method) systematically identifies uncertainties in the aircraft Inertial Navigation System and errors in the radar-pointing angles by ... -
Evaluation of a 45° Slant Quasi-Linear Radar Polarization State for Distinguishing Drizzle Droplets, Pristine Ice Crystals, and Less Regular Ice Particles
(American Meteorological Society, 2002)A remote sensing capability is needed to detect clouds of supercooled, drizzle-sized droplets, which are a major aircraft icing hazard. Discrimination among clouds of differing ice particle types is also important because ... -
The NIMA Method for Improved Moment Estimation from Doppler Spectra
(American Meteorological Society, 2002)The NCAR Improved Moments Algorithm (NIMA) for estimating moments from wind measurement devices that measure Doppler spectra as a function of range is described in some detail. Although NIMA's main application has been for ... -
Versatile Lidar for Atmospheric Studies, Including Plume Dispersion, Clouds, and Stratospheric Aerosol
(American Meteorological Society, 1986)A transportable scanning lidar for studying clouds, plume dispersion, and stratospheric aerosal at any of three wavelengths is described. A ruby laser transmits linearly polarized light of 694.3 nm wavelength at a maximum ... -
A Horizontal Wind and Wind Confidence Algorithm for Doppler Wind Profilers
(American Meteorological Society, 2002)Boundary layer wind profilers are increasingly being used in applications that require high-quality, rapidly updated winds. An example of this type of application is an airport wind hazard warning system. Wind shear can ... -
EDITORIAL BY AMS PRESIDENT AVERY ON UNPAID PAGE CHARGES
(American Meteorological Society, 2004) -
An Optimal Filter for Geostrophic Mesoscale Currents from Along-Track Satellite Altimetry
(American Meteorological Society, 2004)An optimal difference operator is derived for smoothing along-track sea surface height measurements from satellite altimeters and computing geostrophic surface currents at or below ocean mesoscale wavelengths with second-order ... -
Microstructure Measurements from a Towed Undulating Platform
(American Meteorological Society, 2004)MicroSoar, an undulating profiler capable of measuring turbulence parameters such as Thorpe scales and thermal dissipation rate while being towed at speeds of up to 4 m s?1, offers the possibility of obtaining a close-to-synoptic ... -
Design Requirements for an Argo Float Array in the Indian Ocean Inferred from Observing System Simulation Experiments
(American Meteorological Society, 2004)Experiments using OGCM output have been performed to assess sampling strategies for the Argo array in the Indian Ocean. The results suggest that spatial sampling is critical for resolving intraseasonal oscillations in the ... -
Air Temperature Comparison between the MMTS and the USCRN Temperature Systems
(American Meteorological Society, 2004)A new U.S. Climate Reference Network (USCRN) was officially and nationally commissioned by the Department of Commerce and the National Oceanic and Atmospheric Administration in 2004. During a 1-yr side-by-side field ... -
Experimental and Numerical Study of the Turbulence Characteristics of Airflow around a Research Vessel
(American Meteorological Society, 2004)Airflow distortion by research vessels has been shown to significantly affect micrometeorological measurements. This study uses an efficient time-dependent large-eddy simulation numerical technique to investigate the effect ... -
Dealiasing of Doppler Radar Velocities Using a Torus Mapping
(American Meteorological Society, 2004)A novel dealiasing algorithm for Doppler radar velocity data has been developed at the Swedish Meteorological and Hydrological Institute (SMHI). Unlike most other methods, it does not need independent wind information from ... -
Test of the MIPAS Retrieval Code with ATMOS Measurements
(American Meteorological Society, 2004)The Optimized Retrieval Model (ORM), developed for the level-2 analysis of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) experiment, is tested using spectra measured by atmospheric trace molecule ... -
Application of Scaling in Radar Reflectivity for Correcting Range-Dependent Bias in Climatological Radar Rainfall Estimates
(American Meteorological Society, 2004)This paper presents a method to correct for the range-dependent bias in radar reflectivity that is a result of partial beam filling and of the increase in observation volume with range. The scaling behavior of reflectivity ... -
Mean Vertical Motions in the PBL Measured by Doppler Sodar: Accuracy, Ambiguities, and Possible Improvements
(American Meteorological Society, 2004)Accurate measurements of vertical wind velocity w by sodar are useful for investigating dynamic phenomena in the PBL such as convection, subsidence, divergence, and vertical movements associated with local circulation. ... -
An Electrical-Readout, Oven-Controlled, Aneroid Barometer for Meteorological Application
(American Meteorological Society, 1986)An electrical readout, aneroid barometer is described, suitable for meteorological use, which operates in a constant temperature (40°C) enclosure to eliminate corrections to calibration coefficients (α0, ??0) for variations ... -
A New Videosonde with a Particle Charge Measurement Device for In Situ Observation of Precipitation Particles
(American Meteorological Society, 2004)A new videosonde designed for microphysical soundings inside thunderclouds is described. This sensor makes use of a charge-coupled device (CCD) camera and can provide the phase (liquid or ice), the shape, the size, and the ... -
Structure and Evolution of Intense Tropical Cyclone Dina near La Réunion on 22 January 2002: GB-EVTD Analysis of Single Doppler Radar Observations
(American Meteorological Society, 2004)Doppler radar observations of Tropical Cyclone Dina, as its eye passed at less than 100 km from the northern coast of La Réunion Island (21°S, 55.5°E) on 22 January 2002, are analyzed using the Ground-Based Extended Velocity ... -
Correcting for Beam Spread in Acoustic Doppler Current Profiler Measurements
(American Meteorological Society, 2004)Spatial homogeneity assumptions inherent in the conversion of directly measured acoustic Doppler current profiler (ADCP) beam to Cartesian coordinates for the Janus configuration are investigated. These assumptions may be ... -
Observing Coherent Boundary Layer Motions Using Remote Sensing and Surface Pressure Measurement
(American Meteorological Society, 2004)In this paper, high-frequency pressure time series measured by microbarographs are used to extract information on the existence and characteristics of convective rolls in the convective boundary layer. Rolls are identified ...