Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 4141-4160 of 5084
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Testing a Procedure for Automatic Classification of Hydrometeor Types
(American Meteorological Society, 2001)Examples of automatic interpretation of polarimetric measurements made with an algorithm that classifies precipitation, from an Oklahoma squall line and a Florida airmass storm are presented. Developed in this paper are ... -
Measurement of Three-Dimensional Unsteady Flows Using an Inexpensive Multiple Disk Probe
(American Meteorological Society, 2001)A novel velocimeter consisting of multiple orthogonal disks fitted with pressure transducers has been developed. In such a velocimeter the pressure difference is measured between the center of each disk face and the center ... -
Real-Time Retrieval of the Wind from Aliased Velocities Measured by Doppler Radars
(American Meteorological Society, 2001)Doppler radar measurements provide the radial wind within an unambiguous interval due to the limited value of the sampling frequency (pulse repetition frequency). Many algorithms have been developed to retrieve true wind ... -
Remote Sensing of Atmospheric Water Vapor from Backscattered Sunlight in Cloudy Atmospheres
(American Meteorological Society, 2001)The ?differential absorption technique? is used to derive columnar water vapor contents above clouds. Radiative transfer simulations were carried out for two different spectral channels, one channel within the ?στ?water ... -
The Effectiveness of the ASOS, MMTS, Gill, and CRS Air Temperature Radiation Shields
(American Meteorological Society, 2001)Periodic upgrades of air temperature measurement systems in surface weather station networks cause data discontinuities. From a climatological viewpoint, it is necessary to evaluate the air temperature data discontinuities ... -
Comparison of Measurements of Atmospheric Wet Delay by Radiosonde, Water Vapor Radiometer, GPS, and VLBI
(American Meteorological Society, 2001)The accuracy of the Global Positioning System (GPS) as an instrument for measuring the integrated water vapor content of the atmosphere has been evaluated by comparison with concurrent observations made over a 14-day period ... -
Validation of Winds Measured by MU Radar with GPS Radiosondes during the MUTSI Campaign
(American Meteorological Society, 2001)For many years, mesosphere?stratosphere?troposphere (MST) radar techniques have been used for studying the structure and dynamics of the lower and middle atmosphere. In particular, these instruments are unique tools for ... -
An Advanced Measurement Concept: The Integrated Sensor
(American Meteorological Society, 1986)An integrated sensor is a complete measurement system that communicates its signals to a data collection and archival facility. The paper describes the concept, and how it developed from and relates to the more traditional ... -
Evaluation of Anomalous Propagation Echo Detection in WSR-88D Data: A Large Sample Case Study
(American Meteorological Society, 2001)A method of detecting anomalous propagation echo in volume scan radar reflectivity data is evaluated. The method is based on a neural network approach and is suitable for operational implementation. It performs a classification ... -
Comparisons between the TAO Buoy and NASA Scatterometer Wind Vectors
(American Meteorological Society, 2001)There was an opportunity to compare 10 months of collocated National Aeronautics and Space Administration scatterometer (NSCAT) wind vectors with those from the Tropical Atmosphere Ocean (TAO) buoy array, located in the ... -
On Estimating Wind Velocity Using an Upward-Looking ADCP
(American Meteorological Society, 2001)A new set of measurements made using an upward-looking broadband acoustic Doppler current profiler (ADCP) is analyzed for ?surface velocity,? which previous investigations suggest is related to wind velocity. In the present ... -
Enhanced Computational Methods for Nonlinear Hamiltonian Wave Dynamics. Part II: New Results
(American Meteorological Society, 2001)It has been noted that the nonlinear Hamiltonian dynamical equations describing surface waves are of convolution form in a version derived by Krasitskii, and thus they are amenable to numerical calculations using fast ... -
Ship-Based Sun Photometer Measurements Using Microtops Sun Photometers
(American Meteorological Society, 2001)The use of hand-held Microtops II sun photometers (built by Solar Light Inc.) on ship platforms is discussed. Their calibration, filter stability, and temperature effects are also described. It is found that under rough ... -
A Continuous-Flow Diffusion Chamber for Airborne Measurements of Ice Nuclei
(American Meteorological Society, 2001)A continuous-flow thermal gradient diffusion chamber was developed for operating in an aircraft and detecting ice nucleating aerosol particles in real time. The chamber volume is the annular space between two vertically ... -
Reply
(American Meteorological Society, 2001) -
Comments on “Improvement of the Short-Fetch Behavior in the Wave Ocean Model (WAM)”
(American Meteorological Society, 2001) -
Comparative Analysis of Spectral, Empirical Orthogonal Function, and Wavelet Decompositions for an Upwelling Event
(American Meteorological Society, 2001)The recently developed wavelet transform, conventional spectral, and empirical orthogonal function decompositions have been applied to the vertical temperature profiles characterized with an isolated upwelling event and ... -
Decomposition of Global Ocean Currents Using a Simple Iterative Method
(American Meteorological Society, 2001)The common representation of two-dimensional nondivergent oceanic currents or fluxes by a streamfunction is extended to the divergent global case using the Helmholtz decomposition of the flow into rotational (nondivergent) ... -
The Electro-Optical Kerr Effect in the Atmosphere
(American Meteorological Society, 1986)The magnitude of the electro-optical Kerr effect in the atmosphere is assessed with an eye toward employing it in the measurement of humidity and electric fields. For various conditions, the birefringence of air is computed ... -
Application of a Direct Inverse Data Assimilation Method to the M2 Tide on the Newfoundland and Southern Labrador Shelves
(American Meteorological Society, 2001)The barotropic M2 tide over the Newfoundland and southern Labrador Shelves and adjacent deep ocean is studied using a linear harmonic finite-element model and a newly developed direct inverse method for data assimilation. ...