Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 2201-2220 of 5084
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The Atmospheric Radiation Measurement Program Cloud Profiling Radars: An Evaluation of Signal Processing and Sampling Strategies
(American Meteorological Society, 2005)The U.S. Department of Energy (DOE) Atmospheric Radiation Measurements (ARM) program operates millimeter-wavelength cloud radars (MMCRs) in several specific locations within different climatological regimes. These vertically ... -
A Comparative Study of ASOS and USCRN Temperature Measurements
(American Meteorological Society, 2005)Temperature measurements from the U.S. Climate Reference Network (USCRN) instrument system were compared to the Automated Surface Observing System (ASOS) ambient air temperature measurements and were examined under different ... -
Analysis of Relative Humidity Sensors at the WMO Radiosonde Intercomparison Experiment in Brazil
(American Meteorological Society, 2005)The quality of the vertical distribution measurements of humidity in the atmosphere is very important in meteorology due to the crucial role that water vapor plays in the earth?s energy budget. The radiosonde is the humidity ... -
Lightning-Initiation Locations as a Remote Sensing Tool of Large Thunderstorm Electric Field Vectors
(American Meteorological Society, 2005)The lightning data that are recorded with a three-dimensional lightning mapping array (LMA) are compared with data from an electric field change sensor (in this case a flat-plate antenna operated both as a ?slow? and a ... -
An Advanced Method to Estimate Deep Currents from Profiling Floats
(American Meteorological Society, 2005)Subsurface ocean currents can be estimated from the positions of drifting profiling floats that are being widely deployed for the international Argo program. The calculation of subsurface velocity depends on how the ... -
Infrared Interferometric Measurements of the Near-Surface Air Temperature over the Oceans
(American Meteorological Society, 2005)The radiometric measurement of the marine air temperature using a Fourier transform infrared spectroradiometer is described. The measurements are taken by the Marine-Atmospheric Emitted Radiance Interferometer (M-AERI) ... -
Combined Radar and Radiometer Analysis of Precipitation Profiles for a Parametric Retrieval Algorithm
(American Meteorological Society, 2005)A methodology to analyze precipitation profiles using the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) and precipitation radar (PR) is proposed. Rainfall profiles are retrieved from PR measurements, ... -
Scanning Eye-Safe Elastic Backscatter Lidar at 1.54 μm
(American Meteorological Society, 2005)A field-deployable scanning direct-detection elastic backscatter lidar system that is eye safe at all ranges is presented. The first two-dimensional spatial images created by scanning this new 1.54-?m wavelength system, ... -
Measurement of Wind Waves and Wave-Coherent Air Pressures on the Open Sea from a Moving SWATH Vessel
(American Meteorological Society, 2005)The design and implementation on a Small Waterline Area Twin Hull (SWATH) vessel of a complete system for measuring the directional distribution of wind waves and the concomitant fluctuations of air pressure and wind speed ... -
Comparison of Two Jason-1 Altimeter Precipitation Detection Algorithms with Rain Estimates from the TRMM Microwave Imager
(American Meteorological Society, 2005)This paper evaluates and compares the ability of two different Jason-1 dual-frequency altimeter algorithms (referred as Tournadre?s and Quartly?s rain flags, respectively) to detect rain events in order to flag rain-contaminated ... -
Stability-Dependent Exchange Coefficients for Air–Sea Fluxes
(American Meteorological Society, 2005)This study introduces exchange coefficients for wind stress (CD), latent heat flux (CL), and sensible heat flux (CS) over the global ocean. They are obtained from the state-of-the-art Coupled Ocean?Atmosphere Response ... -
Virtual CSU-CHILL Radar: The VCHILL
(American Meteorological Society, 2005)The Virtual CHILL (VCHILL) system makes it possible to transfer the educational and research experience of the Colorado State University dual polarization radar to remote locations over the Internet. The VCHILL operation ... -
Theoretical and Experimental Characterization of the Ultrafast Aircraft Thermometer: Reduction of Aerodynamic Disturbances and Signal Processing
(American Meteorological Society, 2005)The ultrafast aircraft thermometer, built for measuring temperature in clouds at flight speeds up to 100 m?s?1, employs a 2.5-?m-thick platinum-coated tungsten wire as a sensing element. When temperature increases, the ... -
Absolute Calibration of Radar Altimeters: Consistency with Electromagnetic Modeling
(American Meteorological Society, 2005)Empirical Ku-band altimeter model functions of near-nadir normalized radar cross-sectional σ° are compared to electromagnetic two-scale quasi-specular theory in the context of a standard sea wave spectral model. Three ... -
Feasible Method for the Assimilation of Satellite-Derived SST with an Ocean Circulation Model
(American Meteorological Society, 2005)The surface restoring condition of satellite-derived sea surface temperatures (SSTs) is validated as a feasible assimilation method with an ocean circulation model that incorporates the strongly nonlinear mixed layer model. ... -
THOR—Cloud Thickness from Offbeam Lidar Returns
(American Meteorological Society, 2005)Conventional wisdom is that lidar pulses do not significantly penetrate clouds having an optical thickness exceeding about τ = 2, and that no returns are detectible from more than a shallow skin depth. Yet optically thicker ... -
Assimilation of Ship-Mounted ADCP Data for Barotropic Tides: Application to the Ross Sea
(American Meteorological Society, 2005)The application of a generalized inverse approach for assimilating vessel-mounted acoustic Doppler current profiler (VM-ADCP) data into numerical solutions of barotropic tides is described. The derived estimates of tidal ... -
Comparisons of Scatterometer and TAO Winds Reveal Time-Varying Surface Currents for the Tropical Pacific Ocean
(American Meteorological Society, 2005)The differences between Tropical Atmosphere Ocean (TAO) anemometer and QuikSCAT scatterometer winds are analyzed over a period of 3 yr. Systematic differences are expected owing to ocean currents because the anemometer ... -
Advanced Methods for Characterizing the Immersion Factor of Irradiance Sensors
(American Meteorological Society, 2005)Two new immersion factor methods are evaluated by comparing them with the so-called traditional (or incremental) method. For the first method, the optical measurements taken at discrete water depths are substituted by ... -
Networked Acoustic Modems for Real-Time Data Telemetry from Distributed Subsurface Instruments in the Coastal Ocean: Application to Array of Bottom-Mounted ADCPs
(American Meteorological Society, 2005)Through the winter and spring of 2002, networked acoustic modems demonstrated real-time wireless data telemetry from an array of bottom-mounted acoustic Doppler current profilers (ADCPs) on the inner continental shelf 20?60 ...