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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
Historic
Publication Date:
2013
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 http://www.ebooklibrary.org/


Description
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.

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

Excerpt
Albergel, C., Calvet, J.-C., Gibelin, A.-L., Lafont, S., Roujean, J.-L., Berne, C., Traullé, O., and Fritz, N.: Observed and modelled ecosystem respiration and gross primary production of a grassland in southwestern France, Biogeosciences, 7, 1657–1668, doi:10.5194/bg-7-1657-2010, 2010.; Albergel, C., de Rosnay, P., Balsamo, G., Isaksen, L., and Muñoz Sabater, J.: Soil moisture analyses at ECMWF: evaluation using global ground-based in-situ observations, J. Hydrometeorol., 13, 1442–1460, 2012.; Amiro, B. D., Barr, A. G., Barr, J. G., Black, T. A., Bracho, R., Brown, M., Chen, J., Clark, K. L., Davis, K. J., and Desai, A. R.: Ecosystem carbon dioxide fluxes after disturbance in forests of North America, J. Geophys. Res., 115, G00K02, doi:10.1029/2010JG001390, 2010.; Ammann, C., Flechard, C. R., Leifeld, J., Neftel, A., and Fuhrer, J.: The carbon budget of newly established temperate grassland depends on management intensity, Agr. Ecosyst. Environ., 121, 5–20, 2007.; Arora, V.: Modelling vegetation as a dynamic component in soil-vegetation-atmosphere transfer scheme and hydrological models, Rev. Geophys., 40, 1–25, 2002.; Aubinet, M., Vesala, T., and Papale, D.: Eddy Covariance – a Practical Guide to Measurement and Data Analysis, Springer, 2012.; Baldocchi, D.: Breathing of the terrestrial biosphere: lessons learned from a global network of carbon dioxide flux measurement system, Aust. J. Bot., 56, 1–26, 2008.; Baldocchi, D., Falge, E., Gu, L., Olson, R., Hollinger, D., Running, S., Anthoni, P., Bernhofer, C., Davis, K., Evans, R., Fuentes, J., Goldstein, A., Katul, G., Law, B., Lee, X., Malhi, Y., Meyers, T., Munger, W., Oechel, W., Paw U, K. T., Pilegaard, K., Schmid, H. P., Valentini, R., Verma, S., Vesala, T., Wilson, K., and Wofsy, S.: FLUXNET: a new tool to study the temporal and spatial variability of ecosystem-scale carbon dioxide, water vapor and energy flux densities, B. Am. Meteorol. Soc., 82, 2415–2434, 2001.; Ball, J., Woodrow, T., and Berry, J.: A model predicting stomatal conductance and its contribution to the control of photosynthesis under different environmental conditions, Prog. Photosynthesis, 4, 221–224, 1987.; Balsamo, G., Viterbo, P., Beljaars, A., van den Hurk, B., Hirschi, M., Betts, A. K., and Scipal, K.: A revised hydrology for the ECMWF model: verification from field site to terrestrial water storage and impact in the integrated forecast system, J. Hydrometeorol., 10, 623–643, 2009.; Calvet, J.-C.: Investigating soil and atmospheric plant water stress using physiological and micrometeorological data sets, Agr. Forest Meteorol., 103, 229–247, 2000.; Balsamo, G., Boussetta, S., Dutra, E., Beljaars, A., Viterbo, P., and Van den Hurk, B.: Evolution of land surface processes in the IFS, ECMWF Newsletter, 127, 17–22, 2011.; Balsamo, G., Albergel, C., Beljaars, A., Boussetta, S., Brun, E., Cloke, H., Dee, D., Dutra, E., Pappenberger, F., de Rosnay, P., Muñoz Sabater, J., Stockdale, T., and Vitart, F.: ERA-Interim/Land: a global land–surface reanalysis based on ERA-Interim meteorological forcing, ECMWF ERA report series No., 13, 2012.; Beer, C., Reichstein, M., Ciais, P., Farquhar, G. D., and Papale, D.: Mean annual GPP of Europe derived from its water balance, Geophys. Res. Lett., 34, L05401, doi:10.1029/2006GL029006, 2007.; Bellassen, V., Viovy, N., Luyssaert, S., le Maire, G., Schelhaas, M. J., and Ciais, P.: Reconstruction and attribution of the carbon sink of european forests between 1950 and 2000, Glob. Change Biol., 17, 3274–3292, doi:10.1111/j.1365-2486.2011.02476.x, 2011.; Bonan, G. B., Levis, S., Sitch, S., Vertenstein, M., and Oleson, K. W.: A dynamic global vegetation model for use with climate models: concepts and description of sim


 

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