Simulations of chlorophyll fluorescence incorporated into the Community Land Model version 4

J.E. Lee, J.A. Berry, C. van der Tol, X. Yang, L. Guanter, A. Damm, I. Baker, C. Frankenberg

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Several studies have shown that satellite retrievals of solar-induced chlorophyll fluorescence (SIF) provide useful information on terrestrial photosynthesis or gross primary production (GPP). Here, we have incorporated equations coupling SIF to photosynthesis in a land surface model, the National Center for Atmospheric Research Community Land Model version 4 (NCAR CLM4), and have demonstrated its use as a diagnostic tool for evaluating the calculation of photosynthesis, a key process in a land surface model that strongly influences the carbon, water, and energy cycles. By comparing forward simulations of SIF, essentially as a byproduct of photosynthesis, in CLM4 with observations of actual SIF, it is possible to check whether the model is accurately representing photosynthesis and the processes coupled to it. We provide some background on how SIF is coupled to photosynthesis, describe how SIF was incorporated into CLM4, and demonstrate that our simulated relationship between SIF and GPP values are reasonable when compared with satellite (Greenhouse gases Observing SATellite; GOSAT) and in situ flux-tower measurements. CLM4 overestimates SIF in tropical forests, and we show that this error can be corrected by adjusting the maximum carboxylation rate (Vmax) specified for tropical forests in CLM4. Our study confirms that SIF has the potential to improve photosynthesis simulation and thereby can play a critical role in improving land surface and carbon cycle models.
Original languageEnglish
Pages (from-to)3469-3477
Number of pages31
JournalGlobal change biology
Volume21
Issue number9
DOIs
Publication statusPublished - 2 Jul 2015

Fingerprint

Chlorophyll
Photosynthesis
chlorophyll
fluorescence
Fluorescence
photosynthesis
simulation
GOSAT
land surface
Satellites
tropical forest
primary production
Carbon
Carboxylation
land
carbon cycle
Greenhouse gases
Towers
Byproducts
Fluxes

Keywords

  • METIS-310862
  • ITC-ISI-JOURNAL-ARTICLE

Cite this

Lee, J. E., Berry, J. A., van der Tol, C., Yang, X., Guanter, L., Damm, A., ... Frankenberg, C. (2015). Simulations of chlorophyll fluorescence incorporated into the Community Land Model version 4. Global change biology, 21(9), 3469-3477. https://doi.org/10.1111/gcb.12948
Lee, J.E. ; Berry, J.A. ; van der Tol, C. ; Yang, X. ; Guanter, L. ; Damm, A. ; Baker, I. ; Frankenberg, C. / Simulations of chlorophyll fluorescence incorporated into the Community Land Model version 4. In: Global change biology. 2015 ; Vol. 21, No. 9. pp. 3469-3477.
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Lee, JE, Berry, JA, van der Tol, C, Yang, X, Guanter, L, Damm, A, Baker, I & Frankenberg, C 2015, 'Simulations of chlorophyll fluorescence incorporated into the Community Land Model version 4' Global change biology, vol. 21, no. 9, pp. 3469-3477. https://doi.org/10.1111/gcb.12948

Simulations of chlorophyll fluorescence incorporated into the Community Land Model version 4. / Lee, J.E.; Berry, J.A.; van der Tol, C.; Yang, X.; Guanter, L.; Damm, A.; Baker, I.; Frankenberg, C.

In: Global change biology, Vol. 21, No. 9, 02.07.2015, p. 3469-3477.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Simulations of chlorophyll fluorescence incorporated into the Community Land Model version 4

AU - Lee, J.E.

AU - Berry, J.A.

AU - van der Tol, C.

AU - Yang, X.

AU - Guanter, L.

AU - Damm, A.

AU - Baker, I.

AU - Frankenberg, C.

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