Journal of Atmospheric and Oceanic Technology: Recent submissions

Now showing items 4081-4100 of 5084

    • Processing Millimeter Wave Profiler Radar Spectra 

      Giangrande, Scott E.; Babb, David M.; Verlinde, Johannes (American Meteorological Society, 2001)
      Spectral processing algorithms employed in millimeter-wave profiling radars typically obtain good signal-to-noise ratios from weakly scattering clouds by incoherently averaging many spectra. Radar operating characteristics ...

    • Corrigenda 

      Unknown author (American Meteorological Society, 1986)
      Correction to Volume 2, Issue 4, page 693. Please see the Print Version. Correction to Volume 2, Issue 3, pages 404-407.

    • An Analysis of Depolarization of Circular Polarization in S-Band Radar Sensing of Alberta Storms 

      Holt, Anthony R. (American Meteorological Society, 2001)
      An analysis is given of storm events in 1982?85 in which the Alberta Research Council circularly polarized polarization diversity S-band radar recorded data indicating significant depolarization. The accompanying two-way ...

    • Use of the 3D Radon Transform to Examine the Properties of Oceanic Rossby Waves 

      Challenor, Peter G.; Cipollini, Paolo; Cromwell, David (American Meteorological Society, 2001)
      One of the most successful applications of satellite-borne radar altimeter data over the oceans in recent years has been the extraction of information about long-wavelength baroclinic Rossby (or planetary) waves, which ...

    • The Direct Estimation of Near-Bottom Turbulent Fluxes in the Presence of Energetic Wave Motions 

      Shaw, W. J.; Trowbridge, J. H. (American Meteorological Society, 2001)
      Velocities produced by energetic waves can contaminate direct covariance estimates of near-bottom turbulent shear stress and turbulent heat flux. A new adaptive filtering technique is introduced to minimize the contribution ...

    • Evaluation of the Princeton Ocean Model Using South China Sea Monsoon Experiment (SCSMEX) Data 

      Chu, Peter C.; Lu, Shihua; Chen, Yuchun (American Meteorological Society, 2001)
      The Princeton Ocean Model (POM) has been implemented in the South China Sea for hindcast of circulation and thermohaline structure. A two-step technique is used to initialize POM with temperature, salinity, and velocity ...

    • An Inversion–Assimilation Approach Using Hydrographic Data in a Coarse-Resolution Ocean Model 

      Hines, Adrian; Killworth, Peter D. (American Meteorological Society, 2001)
      Attempts to estimate the state of the ocean usually involve one of two approaches: either an assimilation of data (typically altimetric surface height) is performed or an inversion is carried out according to some minimization ...

    • A New Aerological Sonde for Dense Meteorological Soundings 

      Kottmeier, C.; Reetz, T.; Ruppert, P.; Kalthoff, N. (American Meteorological Society, 2001)
      A new recoverable aerological sonde has been developed for studying mesoscale atmospheric processes. It allows for precise temperature, humidity, pressure, and wind measurements with (i) high spatial resolution (e.g., up ...

    • A Near-Infrared Diode Laser Spectrometer for the In Situ Measurement of Methane and Water Vapor from Stratospheric Balloons 

      Durry, Georges; Pouchet, Ivan (American Meteorological Society, 2001)
      The Spectromètre à Diodes Laser Accordables (SDLA), a balloonborne near-infrared diode laser spectrometer, was developed to provide simultaneous in situ measurements of methane and water vapor in the troposphere and the ...

    • Some Perspectives on Recent In Situ Air Temperature Observations: Modeling the Microclimate inside the Radiation Shields 

      Lin, X.; Hubbard, K. G.; Walter-Shea, E. A.; Brandle, J. R.; Meyer, G. E. (American Meteorological Society, 2001)
      Air temperature measurement has inherent biases associated with the particular radiation shield and sensor deployed. The replacement of the Cotton Region Shelter (CRS) with the Maximum?Minimum Temperature System (MMTS) and ...

    • Anemometry in Icing Conditions 

      Makkonen, Lasse; Lehtonen, Pertti; Helle, Lauri (American Meteorological Society, 2001)
      The accuracy of wind measurements in icing conditions is discussed, and wind tunnel calibrations as well as field comparisons are presented for three heated anemometers that use different measuring principles. It is pointed ...

    • Virtual Doppler Lidar Instrument 

      Leike, Ines; Streicher, Jürgen; Werner, Christian; Banakh, Viktor; Smalikho, Igor; Wergen, Werner; Cress, Alexander (American Meteorological Society, 2001)
      Doppler lidars measure the range-resolved line-of-sight wind component by extracting the Doppler shift of radiation backscattered from atmospheric aerosols and molecules. A virtual instrument was developed to simulate wind ...

    • Broadband and Spectral Emissivities (2–18 μm) of Some Natural Soils and Vegetation 

      Sutherland, Robert A. (American Meteorological Society, 1986)
      Broadband and spectral emissivities of several soil types, grass and tree leaves are reported for wavelengths between 2 and 18 ?m. Broadband measurements were made in situ with an 8?14 ?m bandpass radiometer, and spectral ...

    • Range–Height Scans of Lidar Depolarization for Characterizing Properties and Phase of Clouds and Precipitation 

      Bissonnette, Luc R.; Roy, Gilles; Fabry, Frédéric (American Meteorological Society, 2001)
      Backscatter and depolarization lidar measurements from clouds and precipitation are reported as functions of the elevation angle of the pointing lidar direction. The data were recorded by scanning the lidar beam (Nd:YAG) ...

    • A Diver-Operated Optical and Physical Profiling System 

      Zaneveld, J. Ronald V.; Boss, Emmanuel; Moore, Casey M. (American Meteorological Society, 2001)
      A new instrument package for measuring physical (temperature, salinity, and depth) as well as optical (absorption and attenuation at nine wavelength) parameters using SCUBA is described. The package is attached to the SCUBA ...

    • A Gas-Capture Buoy for Measuring Bubbling Gas Flux in Oceans and Lakes 

      Washburn, Libe; Johnson, Cyril; Gotschalk, Chris C.; Egland, E. Thor (American Meteorological Society, 2001)
      The design, calibration, and deployment of a buoy and gas-capture assembly for measuring bubbling gas flux in oceans and lakes are described. The assembly collects gas in a chamber while continuously measuring the position ...

    • Short-Term Prediction of Lagrangian Trajectories 

      Piterbarg, Leonid I. (American Meteorological Society, 2001)
      Lagrangian particles in a cluster are divided in two groups: observable and unobservable. The problem is to predict the unobservable particle positions given their initial positions and velocities based on observations of ...

    • An Evaluation of the Community Aerosol Inlet for the NCAR C-130 Research Aircraft 

      Blomquist, B. W.; Huebert, B. J.; Howell, S. G.; Litchy, M. R.; Twohy, C. H.; Schanot, A.; Baumgardner, D.; Lafleur, B.; Seebaugh, R.; Laucks, M. L. (American Meteorological Society, 2001)
      Based on both in-flight measurements and a fluid dynamics model, airflow in the National Center for Atmospheric Research (NCAR) Community Aerosol Inlet (CAI) is similar to fully developed pipe flow. Distortions of the ...

    • Evaluation of Vertical Winds near and inside a Cloud Deck Using Coherent Doppler Lidar 

      Lottman, B. T.; Frehlich, R. G.; Hannon and, S. M.; Henderson, S. W. (American Meteorological Society, 2001)
      This paper summarizes high-resolution measurements of the vertical wind fields near and inside a cloud deck from a ground-based 2-?m solid state coherent Doppler lidar. Results include physical characterization of the deck ...

    • Relevance of a Tuning-Fork Effect for Temperature Measurements with the Gill Solent HS Ultrasonic Anemometer–Thermometer 

      Siebert, Holger; Muschinski, Andreas (American Meteorological Society, 2001)
      The performance of a new type of sonic anemometer?thermometer (called a sonic), the Solent-Research HS, manufactured by Gill Instruments, Lymington, United Kingdom, was investigated. Measurements of the three wind-velocity ...