Advertisement

Boundary-Layer Meteorology

, Volume 100, Issue 3, pp 459–468 | Cite as

New Equations For Sonic Temperature Variance And Buoyancy Heat Flux With An Omnidirectional Sonic Anemometer

  • Heping Liu
  • Gerhard Peters
  • Thomas Foken
Article

Abstract

Many new types of sonic anemometer obtain sonic temperature from an average value of temperature measured along three paths, unlike previous sonic anemometers that generally used one path. New equations are derived to calculate temperature variance from sonic temperature variance and sensible heat flux from buoyancy flux considering the influence of a crosswind. These equations can be applied to CSAT3, Solent R2, R3, R3A, HS, and USA-1 sonic anemometers with the corresponding correction factors given in this paper. The equations are verified by data measured by a CSAT3 sonic anemometer in the LITFASS-1998 field study.

Buoyancy flux Eddy covariance Sensible heat flux Sonic anemometer Sonic temperature Sonic temperature variance 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Beyrich, F. (ed.): 2000, ‘LITFASS-98 Experiment, 25.5.1998-30.06.1998, Experimental Repor t’ Deutscher Wetterdienst, Geschäftsbereich Forschung und Entwicklung, Arbeitsergebnisse, No. 62, 78 pp.Google Scholar
  2. Campbell Scientific Ltd.: 1998, CSAT3 Three Dimensional Sonic Anemometer User's Guide, 19 pp., App.Google Scholar
  3. Gill Instruments Ltd.: 1996,’ Horizontally Symmetrical Research Ultrasonic Anemometer User Manual and Product Specification’ Doc. No. 1199-Ps-0003-Iss2.Google Scholar
  4. Hanafusa, T., Fujitani, T., Kobori, Y. and Mitsuta, Y.: 1982, ‘A New Type Sonic Anemometerthermometer for Field Operations’ Papers in Meteorol. Geophys. 33, 1-19.Google Scholar
  5. Hignett, P.: 1992, ‘Corrections to TemperatureMeasurements with a Sonic Anemometer’ Boundary-Layer Meteorol. 61, 175-187.Google Scholar
  6. Kaimal, J. C. and Businger, J. A.: 1963, ‘A Continuous Wave Sonic Anemometer-Thermometer’ J. Appl. Meteorol. 2, 156-164.Google Scholar
  7. Kaimal, J. C. and Gaynor, J. E.: 1991, ‘Another Look at Sonic Thermometry’ Boundary-Layer Meteorol. 56, 401-410.Google Scholar
  8. Schotanus, P., Nieuwstadt, F. T. M. and De Bruin, H. A. R.: 1983, ‘Temperature Measurement with a Sonic Anemometer and its Application to Heat and Moisture Fluctuations’ Boundary-Layer Meteorol. 26, 81-93.Google Scholar

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Heping Liu
    • 1
  • Gerhard Peters
    • 2
  • Thomas Foken
  1. 1.Department of GeophysicsPeking UniversityBeijingP. R. China
  2. 2.Institute of MeteorologyUniversity of HamburgHamburgGermany

Personalised recommendations