Treatment of undercanopy turbulence in land models

Xubin Zeng, Robert E. Dickinson, Michael Barlage, Yongjiu Dai, Guiling Wang, Keith Oleson

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


In arid and semiarid regions most of the solar radiation penetrates through the canopy and reaches the ground, and hence the turbulent exchange coefficient under canopy Cs becomes important. The use of a constant Cs that is only appropriate for thick canopies is found to be primarily responsible for the excessive warm bias of around 10 K in monthly mean ground temperature over these regions in version 2 of the Community Climate System Model (CCSM2). New Cs formulations are developed for the consistent treatment of undercanopy turbulence for both thick and thin canopies in land models, and provide a preliminary solution of this problem.

Original languageEnglish (US)
Pages (from-to)5086-5094
Number of pages9
JournalJournal of Climate
Issue number23
StatePublished - Dec 1 2005

ASJC Scopus subject areas

  • Atmospheric Science


Dive into the research topics of 'Treatment of undercanopy turbulence in land models'. Together they form a unique fingerprint.

Cite this