Wind Profiling in a Cloudy Convective Atmospheric Boundary Layer Over Land

Abstract

The vertical velocity structure of a cloud-topped atmospheric boundary layer, over land, was evaluated using high temporal vertical velocity measurements from two UHF clear-air Doppler radars (wind Profilers) on 20 March 1991 and 31 January 1992, located at Penn State's Circleville Farm site. On both dates, post-cold-frontal stratocumulus covered the area. A transition from a cloudy convective boundary layer to a clear convective boundary layer occurred on 20 March 1991. Vertical velocities were measured, at 30-second intervals, using the vertical beam of the profilers. Vertical velocities were averaged over hourly periods. Vertical velocity variance, Signal-to-Noise Ratio (SNR), and SNR variance were also evaluated for each hourly period

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1992
Accession Number
ADA265422

Entities

People

  • David A. Valler Jr

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Boundary Layer
  • Cloud Cover
  • Clouds
  • Diurnal Variations
  • Doppler Effect
  • Large Eddy Simulation
  • Measurement
  • Meteorology
  • Pennsylvania
  • Refractive Index
  • Signal Processing
  • Standing Waves
  • Statistical Analysis
  • Three Dimensional
  • Time Intervals
  • Wind Velocity

Fields of Study

  • Environmental science

Readers

  • Atmospheric Remote Sensing.
  • Atmospheric Science/Meteorology
  • Radar Systems Engineering.