Boundary-Layer Meteorology

, Volume 34, Issue 1–2, pp 123–135 | Cite as

Bulk transfer coefficient over a snow surface

  • Junsei Kondo
  • Hiromi Yamazawa
Research Note


The drag coefficient C D and the bulk transfer coefficient for sensible heat C H over a flat snow surface were determined experimentally. Theoretical considerations reveal that C D depends on the friction velocity u* as well as on the geometrical roughness h of the snow surface. It is found that C D increases with increasing u* and/or h. The dependency of C H on u* and h is so small that it is possible to consider C H as a constant for practical purposes: C H, 1 = 2.0 × 10−3 for a reference height of 1 m. The bulk transfer coefficient for water vapor is estimated at C E, 1 = 2.1 × 10−3 for a reference height of 1 m.


Water Vapor Transfer Coefficient Drag Coefficient Practical Purpose Theoretical Consideration 
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Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • Junsei Kondo
    • 1
  • Hiromi Yamazawa
    • 1
  1. 1.Geophysical Institute, Tohoku UniversitySendaiJapan

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