Evaluating a land surface model at a water-limited site: implications for land surface contributions to droughts and heatwaves

Mu, Mengyuan; De Kauwe, Martin G.; Ukkola, Anna M.; Pitman, Andy J.; Gimeno, Teresa E.; Medlyn, Belinda E.; Or, Dani; Yang, Jinyan; Ellsworth, David S.

doi:https://doi.org/10.5194/hess-25-447-2021

Articles | Volume 25, issue 1

https://doi.org/10.5194/hess-25-447-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-25-447-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 1

Research article

|

28 Jan 2021

Research article |

| 28 Jan 2021

Evaluating a land surface model at a water-limited site: implications for land surface contributions to droughts and heatwaves

Mengyuan Mu, Martin G. De Kauwe, Anna M. Ukkola, Andy J. Pitman, Teresa E. Gimeno, Belinda E. Medlyn, Dani Or, Jinyan Yang, and David S. Ellsworth

Supplement

https://doi.org/10.5194/hess-25-447-2021-supplement

Data sets

EucFACE Hydrological and meteorological measurements from 2012-04-30 to 2014-11-15 T. E. Gimeno, T. R. McVicar, A. P. O'Grady, D. T. Tissue, and D. S. Ellsworth https://doi.org/10.4225/35/5ab9bd1e2f4fb

MAESPA_EUCFACE_PARAM: Low sensitivity of gross primary production to elevated CO2 in a mature eucalypt woodland J. Yang https://doi.org/10.5281/zenodo.3610698

bibivking/Evaluate_CABLE_EucFACE M. Mu https://doi.org/10.5281/zenodo.4459865

Short summary

Land surface model (LSM) is a critical tool to study land responses to droughts and heatwaves, but lacking comprehensive observations limited past model evaluations. Here we use a novel dataset at a water-limited site, evaluate a typical LSM with a range of competing model hypotheses widely used in LSMs and identify marked uncertainty due to the differing process assumptions. We show the extensive observations constrain model processes and allow better simulated land responses to these extremes.