Journal of Atmospheric and Oceanic Technology: Recent submissions

Now showing items 4101-4120 of 5084

    • Profiling Cloud Liquid Water by Combining Active and Passive Microwave Measurements with Cloud Model Statistics 

      Löhnert, U.; Crewell, S.; Simmer, C.; Macke, A. (American Meteorological Society, 2001)
      A method for combining ground-based passive microwave radiometer retrievals of integrated liquid water (LWP), radar reflectivity profiles (Z), and statistics of a cloud model is proposed for deriving cloud liquid water ...

    • Retrieval of Atmospheric Attenuation Using Combined Ground-Based and Airborne 95-GHz Cloud Radar Measurements 

      Li, Lihua; Sekelsky, Stephen M.; Reising, Steven C.; Swift, Calvin T.; Durden, Stephen L.; Sadowy, Gregory A.; Dinardo, Steven J.; Li, Fuk K.; Huffman, Arlie; Stephens, Graeme; Babb, David M.; Rosenberger, Hans W. (American Meteorological Society, 2001)
      Cloud measurements at millimeter-wave frequencies are affected by attenuation due to atmospheric gases, clouds, and precipitation. Estimation of the true equivalent radar reflectivity, Ze, is complicated because extinction ...

    • Experimental Validation of Wind Profiling Performed by the Airborne 10-μm Heterodyne Doppler Lidar WIND 

      Reitebuch, Oliver; Werner, Christian; Leike, Ines; Delville, Patricia; Flamant, Pierre H.; Cress, Alexander; Engelbart, Dirk (American Meteorological Society, 2001)
      The airborne Wind Infrared Doppler Lidar (WIND) has been developed through French?German cooperation. The system is based on a pulsed 10.6-?m laser transmitter, a heterodyne receiver, and a conical scanning device. To the ...

    • Over-Ocean Rainfall Retrieval from Multisensor Data of the Tropical Rainfall Measuring Mission. Part I: Design and Evaluation of Inversion Databases 

      Bauer, Peter (American Meteorological Society, 2001)
      A new methodology for the combination of active and passive microwave measurements for near-surface precipitation retrieval from the Tropical Rainfall Measuring Mission (TRMM) data was developed. The approach consists of ...

    • Air Flow around PMS Canisters 

      King, W. D. (American Meteorological Society, 1986)
      It is shown that the air flow around PMS canisters can be simulated using just two source and a sink. The flow field is easy to compute and more accurate than the sphere approximation which has been used by other workers.

    • MANDOP Analysis over Complex Orography in the Context of the MAP Experiment 

      Tabary, Pierre; Scialom, Georges (American Meteorological Society, 2001)
      The present paper deals with the adaptation of the Multiple Analytical Doppler (MANDOP) analysis to Doppler radar observations over complex orography. The objective, in the context of the Mesoscale Alpine Programme (MAP), ...

    • Use of a High-Resolution Model to Analyze the Mapping Capabilities of Multiple-Altimeter Missions 

      Le Traon, P. Y.; Dibarboure, G.; Ducet, N. (American Meteorological Society, 2001)
      The contribution of merging multiple-satellite altimeter missions to the mapping of sea level is analyzed from a North Atlantic high-resolution (1/10°) numerical simulation. The model is known to represent the mesoscale ...

    • Airborne Optical System for Remote Sensing of Ocean Waves 

      Dugan, J. P.; Fetzer, G. J.; Bowden, J.; Farruggia, G. J.; Williams, J. Z.; Piotrowski, C. C.; Vierra, K.; Campion, D.; Sitter, D. N. (American Meteorological Society, 2001)
      A compact, turret-based optical system has been designed and constructed for passive imaging of ocean waves using a small aircraft. The purpose of the system is to collect time series of images, which are mapped to a common ...

    • The Evaluation of Salinity Measurements from PALACE Floats 

      Bacon, S.; Centurioni, L. R.; Gould, W. J. (American Meteorological Society, 2001)
      Seven PALACE (Profiling Autonomous Lagrangian Circulation Explorer) floats were deployed in October 1996 in the Irminger Basin of the Atlantic Ocean as a U.K. contribution to the World Ocean Circulation Experiment. Of these ...

    • An Accuracy Progressive Sixth-Order Finite-Difference Scheme 

      Chu, Peter C.; Fan, Chenwu (American Meteorological Society, 2001)
      How to reduce the computational error is a key issue in numerical modeling and simulation. The higher the order of the difference scheme, the less the truncation error and the more complicated the computation. For compromise, ...

    • Systematic Adjustments of Hydrographic Sections for Internal Consistency 

      Johnson, Gregory C.; Robbins, Paul E.; Hufford, Gwyneth E. (American Meteorological Society, 2001)
      A significant legacy of the World Ocean Circulation Experiment (WOCE) is the large number of high quality, high-resolution, full-depth, transoceanic hydrographic sections occupied starting in the mid-1980s. The section ...

    • Mesocyclone and Microburst Signature Distortion with Dual PRT Radars 

      May, Peter T. (American Meteorological Society, 2001)
      A simple model is used to illustrate the limitations of dual pulse repetition time (PRT) radars for measurements of wind fields with strong horizontal wind gradients. In such conditions, errors may occur even if the radial ...

    • Ozone Corrections for Rayleigh-Scatter Temperature Determinations in the Middle Atmosphere 

      Sica, R. J.; Zylawy, Z. A.; Argall, P. S. (American Meteorological Society, 2001)
      A well-established technique for the determination of temperature in the middle atmosphere is the retrieval of temperature profiles from density profiles of air. The measurement of air density profiles from the ground and ...

    • Estimation of a Humidity Profile Using Turbulence Echo Characteristics 

      Tsuda, Toshitaka; Miyamoto, Masaki; Furumoto, Jun-ichi (American Meteorological Society, 2001)
      This paper is concerned with the development of a new stratosphere?troposphere radar technique for determining a height profile of specific humidity (q) by using characteristics of clear-air echoes in the troposphere. ...

    • Comparison of Radar and Navaid Windfinding Systems 

      McBean, G. A.; Phillips, D. J. (American Meteorological Society, 1986)
      During the Storm Transfer and Response Experiment, radiosondes were simultaneously tracked by radar and Navaid windfinding systems on the Canadian weathership in the northeast Pacific Ocean. Comparisons have been made for ...

    • Improved Mapping of Tropospheric Delays 

      Rocken, Christian; Sokolovskiy, Sergey; Johnson, James M.; Hunt, Doug (American Meteorological Society, 2001)
      The authors compare several methods to map the a priori tropospheric delay of global positioning system (GPS) signals from the zenith direction to lower elevations. This is commonly achieved with so-called mapping functions. ...

    • In Situ Measurements of Long-Lived Trace Gases in the Lower Stratosphere by Gas Chromatography 

      Romashkin, P. A.; Hurst, D. F.; Elkins, J. W.; Dutton, G. S.; Fahey, D. W.; Dunn, R. E.; Moore, F. L.; Myers, R. C.; Hall, B. D. (American Meteorological Society, 2001)
      Detailed information on the four-channel Airborne Chromatograph for Atmospheric Trace Species (ACATS-IV), used to measure long-lived atmospheric trace gases, is presented. Since ACATS-IV was last described in the literature, ...

    • Optimal Layout of a Bistatic Radar Network 

      de Elía, Ramón; Zawadzki, Isztar (American Meteorological Society, 2001)
      Bistatic Doppler radar networks have become in the last five years a viable and inexpensive alternative to multiple-Doppler networks. In this study, the optimization of the layout of a bistatic network is analyzed. The ...

    • Rain Detection and Quality Control of SeaWinds 

      Portabella, M.; Stoffelen, A. (American Meteorological Society, 2001)
      A good assessment of the information content of scatterometer winds is particularly important in order to assimilate them in weather analysis. Besides retrieval problems in cases of a confused sea state, a particularly ...

    • Laboratory Measurements of the Response of a PMS OAP-2DC 

      Strapp, J. Walter; Albers, Frank; Reuter, Andreas; Korolev, A. V.; Maixner, Uwe; Rashke, E.; Vukovic, Z. (American Meteorological Society, 2001)
      Laboratory measurements of the response of the Particle Measuring Systems, Inc., 2DC probe have been conducted to characterize counting and sizing errors of the probe for spherical particles. Measurements of the shadow ...