Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 349671
Title The CarboEurope regional experiment strategy
Author(s) Dolman, A.J.; Noilhan, J.; Durand, P.; Sarrat, C.; Brut, A.; Piguet, B.; Butet, A.; Jarosz, N.; Brunet, Y.; Loustau, D.; Lamaud, E.; Tolk, L.F.; Ronda, R.; Miglietta, F.; Gioli, B.; Magliulo, V.; Esposito, M.; Gerbig, C.; Körner, S.; Glademard, P.; Ramonet, M.; Ciais, P.; Neininger, B.; Hutjes, R.W.A.; Elbers, J.A.; Macatangay, R.; Schrems, O.; Pérez-Landa, G.; Sanz, J.; Scholz, Y.; Facon, G.; Ceschia, E.; Beziat, P.
Source Bulletin of the American Meteorological Society 87 (2006)10. - ISSN 0003-0007 - p. 1367 - 1379.
DOI https://doi.org/10.1175/BAMS-87-10-1367
Department(s) Alterra - Centre for Water and Climate
ALTERRA Wageningen UR
Publication type Refereed Article in a scientific journal
Publication year 2006
Keyword(s) broeikasgassen - kooldioxide - klimaatverandering - meteorologie - frankrijk - greenhouse gases - carbon dioxide - climatic change - meteorology - france - boundary-layer budgets - atmospheric transport - hapex-mobilhy - co2 - carbon - surface - model - scale - flux - exchange
Categories Climatic Change
Abstract Quantification of sources and sinks of carbon at global and regional scales requires not only a good description of the land sources and sinks of carbon, but also of the synoptic and mesoscale meteorology. An experiment was performed in Les Landes, southwest France, during May¿June 2005, to determine the variability in concentration gradients and fluxes of CO2. The CarboEurope Regional Experiment Strategy (CERES; see also http://carboregional.mediasfrance.org/index) aimed to produce aggregated estimates of the carbon balance of a region that can be meaningfully compared to those obtained from the smallest downscaled information of atmospheric measurements and continental-scale inversions. We deployed several aircraft to concentration sample the CO2 and fluxes over the whole area, while fixed stations observed the fluxes and concentrations at high accuracy. Several (mesoscale) meteorological modeling tools were used to plan the experiment and flight patterns. Results show that at regional scale the relation between profiles and fluxes is not obvious, and is strongly influenced by airmass history and mesoscale flow patterns. In particular, we show from an analysis of data for a single day that taking either the concentration at several locations as representative of local fluxes or taking the flux measurements at those sites as representative of larger regions would lead to incorrect conclusions about the distribution of sources and sinks of carbon. Joint consideration of the synoptic and regional flow, fluxes, and land surface is required for a correct interpretation. This calls for an experimental and modeling strategy that takes into account the large spatial gradients in concentrations and the variability in sources and sinks that arise from different land use types. We briefly describe how such an analysis can be performed and evaluate the usefulness of the data for planning of future networks or longer campaigns with reduced experimental efforts.
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