Modeling subgrid lake energy balance in ORCHIDEE terrestrial scheme using the FLake lake model

Bernus, Anthony; Ottlé, Catherine

doi:https://doi.org/10.5194/gmd-15-4275-2022

Articles | Volume 15, issue 10

Geosci. Model Dev., 15, 4275–4295, 2022

https://doi.org/10.5194/gmd-15-4275-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Modelling inland waters in a changing climate (GMD/ESD/TC...

Geosci. Model Dev., 15, 4275–4295, 2022

https://doi.org/10.5194/gmd-15-4275-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 10

Development and technical paper

01 Jun 2022

Development and technical paper | 01 Jun 2022

Modeling subgrid lake energy balance in ORCHIDEE terrestrial scheme using the FLake lake model

Anthony Bernus and Catherine Ottlé

Data sets

Estimating the volume and age of water stored in global lakes using a geo-statistical approach (https://hydrosheds.org/page/hydrolakes) Mathis Loïc Messager, Bernhard Lehner, Günther Grill, Irena Nedeva, and Oliver Schmitt https://doi.org/10.1038/ncomms13603

GloboLakes: Lake Surface Water Temperature (LSWT) v4.0 (1995-2016) L. Carrea and C. J. Merchant https://doi.org/10.5285/76a29c5b55204b66a40308fc2ba9cdb3

Global Lake and River Ice Phenology Database B. Benson, J. Magnuson, and S. Sharma https://doi.org/10.7265/N5W66HP8

Model code and software

ORCHIDEE-FLAKE Anthony Bernus and Catherine Ottlé https://doi.org/10.5281/zenodo.6383273

Short summary

The lake model FLake was coupled to the ORCHIDEE land surface model to simulate lake energy balance at global scale with a multi-tile approach. Several simulations were performed with various atmospheric reanalyses and different lake depth parameterizations. The simulated lake surface temperature showed good agreement with observations (RMSEs of the order of 3 °C). We showed the large impact of the atmospheric forcing on lake temperature. We highlighted systematic errors on ice cover phenology.