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Evaluating the Potential of Large Scale Simulations to Predict Carbon Fluxes of Terrestrial Ecosystems Over a European Eddy Covariance Network : Volume 10, Issue 7 (16/07/2013)

By Balzarolo, M.

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Book Id: WPLBN0003977106
Format Type: PDF Article :
File Size: Pages 41
Reproduction Date: 2015

Title: Evaluating the Potential of Large Scale Simulations to Predict Carbon Fluxes of Terrestrial Ecosystems Over a European Eddy Covariance Network : Volume 10, Issue 7 (16/07/2013)  
Author: Balzarolo, M.
Volume: Vol. 10, Issue 7
Language: English
Subject: Science, Biogeosciences, Discussions
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Balsamo, G., Beljaars, A., Boussetta, S., Calvet, J., Szczypta, C., Papale, D.,...Barbu, A. (2013). Evaluating the Potential of Large Scale Simulations to Predict Carbon Fluxes of Terrestrial Ecosystems Over a European Eddy Covariance Network : Volume 10, Issue 7 (16/07/2013). Retrieved from

Description: DIBAF, University of Tuscia, via S. Camillo de Lellis, 01100 Viterbo, Italy. Understanding and simulating land biosphere processes happening at the interface between plants and atmosphere are important research activities with operational applications for monitoring and predicting seasonal and inter-annual variability of terrestrial carbon fluxes in connection to a changing climate. This paper reports a comparison between three different Land Surface Models (LSMs), ORCHIDEE, ISBA-A-gs and CTESSEL used in the Copernicus-Land project precursor, 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 models have the best performance for forest sites and the poorest performance for cropland and grassland sites. In addition, the three models 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 well 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 observation in models development and validation.

Evaluating the potential of large scale simulations to predict carbon fluxes of terrestrial ecosystems over a European Eddy Covariance network

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