Evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance network
This paper reports a comparison between large-scale simulations of three different land surface models (LSMs), ORCHIDEE, ISBA-A-gs and CTESSEL, forced with the same meteorological data, and compared with the carbon fluxes measured at 32 eddy covariance (EC) flux tower sites in Europe. The results sh...
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doaj-8fca9fc30d6147139e676d2e04e0eeb52020-11-24T20:56:07ZengCopernicus PublicationsBiogeosciences1726-41701726-41892014-05-0111102661267810.5194/bg-11-2661-2014Evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance networkM. Balzarolo0S. Boussetta1G. Balsamo2A. Beljaars3F. Maignan4J.-C. Calvet5S. Lafont6A. Barbu7B. Poulter8F. Chevallier9C. Szczypta10D. Papale11DIBAF, University of Tuscia, via S. Camillo de Lellis, 01100 Viterbo, ItalyECMWF, Shinfield Park, Reading, RG2 9AX, EnglandECMWF, Shinfield Park, Reading, RG2 9AX, EnglandECMWF, Shinfield Park, Reading, RG2 9AX, EnglandLSCE-IPSL, UMR8212 (CEA/CNRS/UVSQ), Orme des Merisiers, 91191 Gif sur Yvette Cedex, FranceCNRM-GAME, UMR3589 (Météo-France, CNRS), 42 Avenue Gaspard Coriolis, 31057 Toulouse Cedex 1, FranceCNRM-GAME, UMR3589 (Météo-France, CNRS), 42 Avenue Gaspard Coriolis, 31057 Toulouse Cedex 1, FranceCNRM-GAME, UMR3589 (Météo-France, CNRS), 42 Avenue Gaspard Coriolis, 31057 Toulouse Cedex 1, FranceLSCE-IPSL, UMR8212 (CEA/CNRS/UVSQ), Orme des Merisiers, 91191 Gif sur Yvette Cedex, FranceLSCE-IPSL, UMR8212 (CEA/CNRS/UVSQ), Orme des Merisiers, 91191 Gif sur Yvette Cedex, FranceCNRM-GAME, UMR3589 (Météo-France, CNRS), 42 Avenue Gaspard Coriolis, 31057 Toulouse Cedex 1, FranceDIBAF, University of Tuscia, via S. Camillo de Lellis, 01100 Viterbo, ItalyThis paper reports a comparison between large-scale simulations of three different land surface models (LSMs), ORCHIDEE, ISBA-A-gs and CTESSEL, forced with the same meteorological data, and compared with the carbon fluxes measured at 32 eddy covariance (EC) flux tower sites in Europe. The results show that the three simulations have the best performance for forest sites and the poorest performance for cropland and grassland sites. In addition, the three simulations have difficulties capturing the seasonality of Mediterranean and sub-tropical biomes, characterized by dry summers. This reduced simulation performance is also reflected in deficiencies in diagnosed light-use efficiency (LUE) and vapour pressure deficit (VPD) dependencies compared to observations. Shortcomings in the forcing data may also play a role. These results indicate that more research is needed on the LUE and VPD functions for Mediterranean and sub-tropical biomes. Finally, this study highlights the importance of correctly representing phenology (i.e. leaf area evolution) and management (i.e. rotation–irrigation for cropland, and grazing–harvesting for grassland) to simulate the carbon dynamics of European ecosystems and the importance of ecosystem-level observations in model development and validation.http://www.biogeosciences.net/11/2661/2014/bg-11-2661-2014.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. Balzarolo S. Boussetta G. Balsamo A. Beljaars F. Maignan J.-C. Calvet S. Lafont A. Barbu B. Poulter F. Chevallier C. Szczypta D. Papale |
spellingShingle |
M. Balzarolo S. Boussetta G. Balsamo A. Beljaars F. Maignan J.-C. Calvet S. Lafont A. Barbu B. Poulter F. Chevallier C. Szczypta D. Papale Evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance network Biogeosciences |
author_facet |
M. Balzarolo S. Boussetta G. Balsamo A. Beljaars F. Maignan J.-C. Calvet S. Lafont A. Barbu B. Poulter F. Chevallier C. Szczypta D. Papale |
author_sort |
M. Balzarolo |
title |
Evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance network |
title_short |
Evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance network |
title_full |
Evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance network |
title_fullStr |
Evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance network |
title_full_unstemmed |
Evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance network |
title_sort |
evaluating the potential of large-scale simulations to predict carbon fluxes of terrestrial ecosystems over a european eddy covariance network |
publisher |
Copernicus Publications |
series |
Biogeosciences |
issn |
1726-4170 1726-4189 |
publishDate |
2014-05-01 |
description |
This paper reports a comparison between large-scale simulations of three
different land surface models (LSMs), ORCHIDEE, ISBA-A-gs and CTESSEL, forced
with the same meteorological data, and compared with the carbon fluxes
measured at 32 eddy covariance (EC) flux tower sites in Europe. The results
show that the three simulations have the best performance for forest sites
and the poorest performance for cropland and grassland sites. In addition,
the three simulations have difficulties capturing the seasonality of
Mediterranean and sub-tropical biomes, characterized by dry summers. This
reduced simulation performance is also reflected in deficiencies in diagnosed
light-use efficiency (LUE) and vapour pressure deficit (VPD) dependencies
compared to observations. Shortcomings in the forcing data may also play a
role. These results indicate that more research is needed on the LUE and VPD
functions for Mediterranean and sub-tropical biomes. Finally, this study
highlights the importance of correctly representing phenology (i.e. leaf area
evolution) and management (i.e. rotation–irrigation for cropland, and
grazing–harvesting for grassland) to simulate the carbon dynamics of European
ecosystems and the importance of ecosystem-level observations in model
development and validation. |
url |
http://www.biogeosciences.net/11/2661/2014/bg-11-2661-2014.pdf |
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