Journal of Atmospheric and Oceanic Technology: Recent submissions

Now showing items 2821-2840 of 5084

    • Errors of Five-Day Mean Surface Wind and Temperature Conditions due to Inadequate Sampling 

      Legler, David M. (American Meteorological Society, 1991)
      Surface meteorological reports of wind components, wind speed, air temperature, and sea surface temperature from buoys located in equatorial and midlatitude regions are used in a simulation of random sampling to determine ...

    • A Simplified Wind Vector Algorithm for Satellite Scatterometers 

      Wentz, Frank J. (American Meteorological Society, 1991)
      We derive a simplified algorithm for retrieving wind vectors from microwave scatterometer observations. The azimuthal dependence of the sea surface radar cross section is modeled by a double-cosine function, rather than ...

    • Computerized Reduction of Airborne Foil Impactor Data 

      Peterson, Bret A.; Musil, Dennis J.; Smith, Paul L. (American Meteorological Society, 1991)
      A new technique for reducing data obtained from a foil impactor carried on the T-28 thunderstorm penetration aircraft is described. The technique employs a video image processing system that was originally developed for ...

    • Measurement of Atmospheric Liquid Water by a Ground-based Single-Frequency Microwave Radiometer 

      Hall, Geoffrey E. (American Meteorological Society, 1991)
      Analysis of equations governing microwave measurements of vapor and liquid as well as measurements by a dual-frequency radiometer show that liquid water, particularly in winter, can be obtained by a single-frequency microwave ...

    • Octree Encoding for Visualization of Atmospheric Conditions and Processes 

      Brubaker, Thomas A.; Huonder, Russell J.; Vonder Haar, Thomas H. (American Meteorological Society, 1991)
      Meteorological sensors with digital image output have created a need to generate rapid three-dimensional renderings for visualization of atmospheric conditions and processes. This paper describes the use of octree encoding ...

    • MAFOS: A Simple Tool for Monitoring the Performance of RAFOS Sound Sources in the Ocean 

      König, Holger; Schultz Tokos, Kathy L.; Zenk, Walter (American Meteorological Society, 1991)
      A low-cost underwater sound recorder has been developed and tested. It is designed to receive signals from sound sources that serve as navigation aids for RAFOS floats. This moored version of the RAFOS float (MAFOS) can ...

    • Dynamic Response of CTD Pressure Sensors to Temperature 

      Chiswell, S. M. (American Meteorological Society, 1991)
      Pressure sensors used in CTDs (conductivity temperature depth) respond to transients in temperature. It is often assumed that these transients have a negligible effect on pressure. However, in a Sea-Bird CTD used in Hawaiian ...

    • Radar Observations of Humidity Variability in and above the Marine Atmospheric Boundary Layer 

      White, Allen B.; Fairall, C. W.; Thomson, Dennis W. (American Meteorological Society, 1991)
      Humidity variability at the top of the marine atmospheric boundary layer and in the overlying free troposphere was examined using data collected during the marine stratocumulus phase of the First Regional Experiment (FIRE) ...

    • A Simple Method for Determining the Standard Deviation of Wind Direction 

      Skibin, D. (American Meteorological Society, 1984)
      The discontinuity of the wind direction at 360° complicates automatic calculations of some atmospheric parameters. Various methods were suggested to obtain the standard deviation of the wind direction (σ?). They are reviewed ...

    • An Interactive System for Analysis of Global Cloud Imagery 

      Woodberry, Karen; Tanaka, Ken; Hendon, Harry; Salby, Murry (American Meteorological Society, 1991)
      Synoptic images of the global cloud pattern composited from six contemporaneous satellites provide an unprecedented view of the global cloud field. Having horizontal resolution of about 0.5° and temporal resolution of 3 ...

    • Assimilation of Global Cloud Imagery from Multiple Satellites 

      Tanaka, Ken; Woodberry, Karen; Hendon, Harry; Salby, Murry (American Meteorological Society, 1991)
      Synoptic images of the global cloud field have been created from measurements of infrared radiation taken aboard four geostationary and two polar-orbiting platforms simultaneously observing the earth's cloud field. A series ...

    • An Equation of State for Numerical Models of Oceans and Estuaries 

      Mellor, George L. (American Meteorological Society, 1991)
      No abstract available

    • On the Use of Satellite Altimeter Data in Argo Quality Control 

      Guinehut, Stephanie; Coatanoan, Christine; Dhomps, Anne-Lise; Le Traon, Pierre-Yves; Larnicol, Gilles (American Meteorological Society, 2009)
      Satellite altimeter measurements are used to check the quality of the Argo profiling floats time series. The method compares collocated sea level anomalies from altimeter measurements and dynamic height anomalies calculated ...

    • A Physical Method for the Calibration of the AVHRR/3 Thermal IR Channels 1: The Prelaunch Calibration Data 

      Mittaz, Jonathan P. D.; Harris, Andrew R.; Sullivan, Jerry T. (American Meteorological Society, 2009)
      The absolute accuracy of the thermal infrared (IR) radiances and brightness temperatures derived from the Advanced Very High Resolution Radiometer (AVHRR) is still unknown, with major sources of error not yet fully understood. ...

    • Automated Processing of Sea Surface Images for the Determination of Whitecap Coverage 

      Callaghan, Adrian H.; White, Martin (American Meteorological Society, 2009)
      Sea surface images have been collected to determine the percentage whitecap coverage (W) since the late 1960s. Image processing methods have changed dramatically since the beginning of whitecap studies. An automated whitecap ...

    • Inferring Propagation Direction of Nonlinear Internal Waves in a Vertically Sheared Background Flow 

      Mirshak, Ramzi; Kelley, Daniel E. (American Meteorological Society, 2009)
      Internal waves heave the background flow through which they propagate. If the background flow is vertically sheared, the high-pass-filtered velocity field will thus contain signals of both the wave velocity and the heaved ...

    • Signal Sampling Impacts on HF Radar Wave Measurement 

      Wyatt, Lucy R.; Green, J. Jim; Middleditch, Andrew (American Meteorological Society, 2009)
      Averaging is required for the measurement of ocean surface wave spectra and parameters with any measurement system in order to reduce the variance in the estimates. Sampling theory for buoy measurements is well known. The ...

    • Versatile Harmonic Tidal Analysis: Improvements and Applications 

      Foreman, M. G. G.; Cherniawsky, J. Y.; Ballantyne, V. A. (American Meteorological Society, 2009)
      New computer software that permits more versatility in the harmonic analysis of tidal time series is described and tested. Specific improvements to traditional methods include the analysis of randomly sampled and/or multiyear ...

    • Wind Effects on Drogued and Undrogued Drifters in the Eastern Mediterranean 

      Poulain, Pierre-Marie; Gerin, Riccardo; Mauri, Elena; Pennel, Romain (American Meteorological Society, 2009)
      The wind effects on drogued and undrogued drifters are assessed using Coastal Ocean Dynamics Experiment (CODE) and Surface Velocity Program (SVP) drifter datasets and ECMWF wind products in the eastern Mediterranean. Complex ...

    • The Riding Wave Removal Technique: Recent Developments 

      Schulz, Eric Werner (American Meteorological Society, 2009)
      Recent advances in a technique to identify and catalog waves that ride on larger-scale carrier waves are described in detail. The latest developments allow the riding wave removal technique to correctly identify and replace ...