Journal of Atmospheric and Oceanic Technology: Recent submissions

Now showing items 2361-2380 of 5084

    • Deep-Water Field Evaluation of the NDBC-SWADE 3-m Discus Directional Buoy 

      Anctil, F.; Donelan, M. A.; Forristall, G. Z.; Steele, K. E.; Ouellet, Y. (American Meteorological Society, 1993)
      This paper presents the results of an experiment designed to assess the directional spectrum resolution qualities of the pitch-roll-heave National Data Buoy Center-Surface Wave Dynamics Experiment (NDBC-SWADE) 3-m discus ...

    • Evaluation of Sea Surface Temperature Measurements from Drifting Buoys 

      Bitterman, David S.; Hansen, Donald V. (American Meteorological Society, 1993)
      Three drift-buoy designs have been deployed since 1988 in substantial numbers in the tropical Pacific Ocean by United States participants as part of the Tropical Ocean Global Atmosphere (TOGA) Pan Pacific Surface Current ...

    • A Comparison of Gulf Stream Sea Surface Height Fields Derived from Geosat Altimeter Data and Those Derived from Sea Surface Temperature Data 

      Ezer, Tal; Mellor, George L.; Ko, Dong-Shan; Sirkes, Ziv (American Meteorological Society, 1993)
      Two types of satellite data, Geosat altimeter data and sea surface temperature data (SST), are compared and evaluated for their usefulness in assimilation into a numerical model of the Gulf Stream region. Synoptic sea ...

    • Detecting Gulf of Mexico Oceanographic Features in Summer Using AVHRR Channel 3 

      May, Douglas A.; Hawkins, Jeffrey0; Pickett, Robert L. (American Meteorological Society, 1993)
      Efforts to monitor the Gulf of Mexico Loop Current and mesoscale ocean features using IR satellite imagery in the summertime have been significantly hindered by 1) strong surface heating that masks surface frontal gradients ...

    • Modeling the Performance of an Acoustic Doppler Current Profiler 

      Chereskin, T. K.; Harding, A. J. (American Meteorological Society, 1993)
      A systematic examination of measurement error in acoustic Doppler current profiler (ADCP) velocity estimates, in the limit of large signal-to-noise ratio, is made using a system model and sonar signal simulations coupled ...

    • Combined System for Observations of Tropospheric and Stratospheric Thin Clouds 

      Adriani, A.; Gobbi, G. P.; Viterbini, M.; Ugazio, S. (American Meteorological Society, 1993)
      A balloonborne sonde and a polarization lidar have been developed to make combined observations of thin tropospheric and stratospheric clouds. In their first application these instruments have been used in a campaign ...

    • Real-Time Detection of Performance Degradation of the Forward-scattering Spectrometer Probe 

      Brenguier, Jean-Louis; Rodi, A. R.; Gordon, G.; Wechsler, P. (American Meteorological Society, 1993)
      A method for detecting malfunctions during collection of data with the forward-scattering spectrometer probe (FSSP) is discussed. Droplet spectra measured with the probe are not sufficient to alert operators of probe ...

    • Calibration of a Lyman-α Sensor to Measure In-Cloud Temperature and Clear-Air Dewpoint Temperature 

      Jensen, Jørgen B.; Raga, Graciela B. (American Meteorological Society, 1993)
      A number of previous studies have described how airborne temperature-sensor wetting can lead to erroneous temperature measurements under various conditions. During the 1985 Joint Hawaii Warm Rain Project (JHWRP) a large ...

    • Statistics on Vertical Wind Shear over Oceans 

      Wylie, Donald P.; Hinton, Barry B.; Millett, Kellie M. (American Meteorological Society, 1984)
      Statistics on boundary layer vertical wind shear were gathered from rawinsonde soundings taken from three small islands and one weather ship. These soundings show a high correlation between surface and 1829 m altitude wind ...

    • A Model for the Beam-filling Effect Associated with the Microwave Retrieval of Rain 

      Graves, Charles E. (American Meteorological Society, 1993)
      Estimating rain rate from environmental microwave emissions is hampered by several difficulties. One of these difficulties is known as the beam-filling effect. Beam filling is the systematic error introduced when the ...

    • Editorial 

      Sanford, Thomas B.; Zrnić, Dus̆an S. (American Meteorological Society, 1993)

    • Comparison of Profiling Current Meter and Shipboard ADCP Measurements in the Western Equatorial Pacific 

      Delcroix, Thierry; Masia, François; Eldin, Gérard (American Meteorological Society, 1992)
      Profiling current meter (PCM) measurements under a drifting buoy are compared with concurrent shipboard acoustic Doppler current profiler (ADCP) measurements carried out in the western equatorial Pacific in March 1991, ...

    • Interpretation of GPS Offsets from a Steady course 

      Dzieciuch, Matthew; Munk, Walter; Forbes, Andrew (American Meteorological Society, 1992)
      We have recorded time series of ship GPS (global positioning system) positions at about 10-s intervals under favorable satellite conditions. Errors are less than 10 m rms, as demonstrated by comparing the GPS acoustic-source ...

    • Effects of Water Waves on Wind Shear Stress for Current Modeling 

      Johnson, H. K.; Vested, H. J. (American Meteorological Society, 1992)
      With the goal of improving the formulation of the wind shear stress used in numerical current modeling, a new method for including the effect of water waves on sea roughness is presented. The method is a hybrid of earlier ...

    • Acoustical Measurement of Current and Vorticity beneath Ice 

      Menemenlis, Dimitris; Farmer, David M. (American Meteorological Society, 1992)
      An acoustical instrument has been developed to measure path-averaged horizontal current and vorticity in the subice boundary layer of the eastern Arctic during the spring of 1989. A triangular acoustic array of side 200 m ...

    • Obtaining Smooth Hydrographic Profiles from a Buoy Deployed in Sea Ice 

      Steele, Michael; Morison, James H. (American Meteorological Society, 1992)
      SALARGOS buoys that measure upper-ocean temperature and salinity in ice-covered seas have been collecting data in the Arctic basin for several years. The buoys consist of a 300-m-long string of six temperature-conductivity ...

    • A Procedure for Correcting Radiosonde Reports for Radiation Errors 

      McMillin, Larry; Uddstrom, Michael; Coletti, Alessandro (American Meteorological Society, 1992)
      Temperature sensors on radiosondes measure a temperature that is a balance between the temperature of the air and the temperature of the radiation environment of the sensor. Because of this balance, the temperature reported ...

    • The Elimination of Temperature Effects in Microbarometers 

      Jones, Barrie W. (American Meteorological Society, 1992)
      A microbarometer based on a differential-pressure transducer has been developed, in which an air chamber provides a near-ambient reference pressure. This differential mode ensures high sensitivity to ambient-pressure changes ...

    • Fast-Response Aircraft Temperature Sensors 

      Friehe, Carl A.; Khelif, Djamal (American Meteorological Society, 1992)
      Three aircraft temperature sensors were compared in clear-air conditions on the NCAR King Air: a standard Rosemount nondeiced, fast-response flight test probe, the NCAR K probe, and a modified Rosemount probe with the ...

    • Transhorizon VHF Telemetry from Ocean Moorings 

      Brooks, David A. (American Meteorological Society, 1984)
      During long deployment periods, it is desirable to communicate remotely with moored or drifting instruments. In addition to providing access to the data set as it is collected, a telemetry capability provides insurance ...