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ADVEX, the CarboEurope-IP advection activities: past, present and future

ADVEX, the CarboEurope-IP advection activities: past, present and future C. Feigenwinter 1,7 , M. Aubinet 1 and the ADVEX teams 1,2,3,4,5,6 1 Gembloux Agricultural University, Physique des Bio-systèmes, Gembloux, Belgium (FUSAGx)

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ADVEX, the CarboEurope-IP advection activities: past, present and future

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  1. ADVEX, the CarboEurope-IP advection activities: past, present and future C. Feigenwinter1,7 , M. Aubinet1 and the ADVEX teams1,2,3,4,5,6 1 Gembloux Agricultural University, Physique des Bio-systèmes, Gembloux, Belgium (FUSAGx) 2 TU Dresden, Institute of Hydrology and Meteorology, Department of Meteorology, Dresden, Germany (TUD) 3 Max Planck Institute for Biogeochemistry, Jena, Germany (MPI-BGC) 4 University of Lund, Physical Geography and Ecosystems Analysis, Lund, Sweden (LUND) 5 Autonomous Province of Bolzano, Forest Service, Agency of Environment, Bolzano, Italy (APB) 6 Institute of System Biology and Ecology, Laboratory of Plants Ecological Physiology, Brno, Czech Republic (ILE) 7 University of Basel, Institute of Meteorology, Climatology and Remote Sensing, Basel, Switzerland (MCR)

  2. ADVEX field campaigns

  3. ADVEX workshop in LUND22-24 March 2007 Aim - To present new ADVEX related findings since the Crete meeting - To discuss and further develop these findings - To define the direction of future action and data analysis List of papers with intention of publication of a journal special issue on advection (to be discussed in the parallel session) Agreement for organization of a conference on advection to be held in summer 2008 in Belgium

  4. ADVEX overview paper, Agric. Forest Meteorol., in press uncorrected proof availabledoi:10.1016/j.agrformet.2007.08.013corrected proof available online soon…

  5. ADVEX overview paper summary: experimental setup

  6. ADVEX overview paper summary: vertical advection positive during the night zero Zero mean but large scatter

  7. ADVEX overview paper summary: horizontal advection Positive during the nightslightly negative during the day, trunk space Weak positive advection during the nighttrunk space Large negative advection during the nightlarge scattercrown space

  8. ADVEX oveview paper summary: advection and flow direction at night Well defined pattern related to drainage flows, reducing the reported sink Large negative advection, large scatter, chaoticreducing the reported source Weak advection for some wind sectors

  9. Main results of site comparison - advection affects different sites in different ways - advection occurs under certain local or synoptic meteorological conditions - advection has different reasons at different sites - that it is not possible to use directly measured advection values for estimations of NEE on the base of e.g. half hourly values - that it seems possible to quantify the influence of advection for certain conditions at a certain site - that it may even be possible to extend these findings to general recommendations for certain types of sites (slope, hill, flat)

  10. Direction of future scientific work ADVEX field campaigns Typologymechanisms at workAubinet (2007) Model simulations(CFD, LES)in cooperation with INRA Exploring the “noise” Development of a robust correction scheme of EC-fluxes for advectionConference on advectionJuly 2008 in Belgium

  11. Synthesis:mechanisms at work during calm and stable nights Aubinet (2007)Ecol. Appl., accepted

  12. 100 m Norunda central tower Exploringthe “noise” 30 m ADVEX tower A 30 m ADVEX tower B 30 m ADVEX tower C 30 m ADVEX tower D 360 ppm 540 ppm

  13. Thank you for your attention More informationparallel session this afternoon 15:45room Concordia Funding 2005-2006 : CEIP 2007 : FUSAGx; University of Tuscia, Viterbo2008 : FUSAGx faculty grant

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