Evaluating the JULES land surface model energy fluxes using FLUXNET data

Eleanor Blyth, John Gash, Amanda Lloyd, Matthew Pryor, Graham P. Weedon, W. James Shuttleworth

Research output: Contribution to journalArticle

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Abstract

Surface energy flux measurements from a sample of 10 flux network (FLUXNET) sites selected to represent a range of climate conditions and biome types were used to assess the performance of the Hadley Centre land surface model (Joint U.K. Land Environment Simulator; JULES). Because FLUXNET data are prone systematically to undermeasure surface fluxes, the model was evaluated by its ability to partition incoming radiant energy into evaporation and how such partition varies with atmospheric evaporative demand at annual, seasonal, weekly, and diurnal time scales. The model parameters from theGCMconfiguration were used. The overall performance was good, although weaknesses in model performance were identified that are associated with the specification of the leaf area index and plant rooting depth, and the representation of soil freezing.

Original languageEnglish (US)
Pages (from-to)509-519
Number of pages11
JournalJournal of Hydrometeorology
Volume11
Issue number2
DOIs
StatePublished - Apr 2010

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energy flux
land surface
flux measurement
surface flux
surface energy
biome
rooting
climate conditions
leaf area index
simulator
freezing
evaporation
timescale
energy
soil

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Evaluating the JULES land surface model energy fluxes using FLUXNET data. / Blyth, Eleanor; Gash, John; Lloyd, Amanda; Pryor, Matthew; Weedon, Graham P.; Shuttleworth, W. James.

In: Journal of Hydrometeorology, Vol. 11, No. 2, 04.2010, p. 509-519.

Research output: Contribution to journalArticle

Blyth, Eleanor ; Gash, John ; Lloyd, Amanda ; Pryor, Matthew ; Weedon, Graham P. ; Shuttleworth, W. James. / Evaluating the JULES land surface model energy fluxes using FLUXNET data. In: Journal of Hydrometeorology. 2010 ; Vol. 11, No. 2. pp. 509-519.
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