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


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 


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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

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