Optical and in situ measuring of structure parameters relevant to temperature and humidity, and their application to the measuring of sensible and latent heat flux

Details

• Personal Author:
  Kohsiek, W.
• Corporate Authors:
  Wave Propagation Laboratory
• NOAA Program & Office:
  OAR (Oceanic and Atmospheric Research)
• Description:
  Optical measurements of the structure parameters of temperature2 2(C,j, ), humidity (Cq ) and temperature-humidity (CTq) were attempted at 0.94 ym, 10.7 ym (CO„ laser) and 337 ym (HCN laser), but owing to various ^ 2 instrumental problems no measurement of C^ and C^^ could be achieved. In situ measurements of the same parameters were more successful. Two techniques of measuring structure parameters are compared: by using spaced sensors, and by time-lagging one sensor. In this way the expected r ' dependency of the structure parameter could be checked (r = distance between sensors, either by spacing or by time-lagging). From the connection between structure parameters and spectra, evidence of an inertial subrange for the temperature-humidity cospectrum is found. Special attention is paid to the use of Ly-a hygrometry for measuring structure parameters involving humidity. Finally, relations between 2 2 the structure parameters and , and the fluxes of heat and moisture are discussed; an effect of atmospheric stability was not detectable for -z/L > 0.02.
• Keywords:
  Evaporation, Latent Heat Of Water Vapor Transport Evaporation, Latent Heat Of Water Vapor Transport
• Series:
  NOAA technical memorandum ERL WPL ; 96
• Document Type:
  Technical Memorandum
• License:
  https://creativecommons.org/publicdomain/zero/1.0/
• Rights Information:
  CC0 Public Domain
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:f445de3bf440bffa47fd432d36b53e0fc61de170d27d2616128b9c8df2f2d25d
• Download URL:
  https://repository.library.noaa.gov/view/noaa/32486/noaa_32486_DS1.pdf
• File Type:
  [PDF - 77.89 MB ]