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@InProceedings{GerbigCBKKKBLFWACKSGLDMSMRAJQR:2010:AsRe,
               author = "Gerbig, C and Chow, V Y and Beck, V and Kretschmer, R and Koch, T 
                         and K Pillai, D and Bela, M M and Longo, Karla and Freitas, Saulo 
                         Ribeiro de and Wofsy, S C and Artaxo, P and Chen, H and Kolle, O 
                         and Steinbach, J and Gottlieb, E W and Longo, M and Daube, B C and 
                         Munger, J W and Santoni, G and Morais, F and Ribeiro, A C and 
                         Andreae, M O and Juergens, N and Querino, C A and Roeckmann, T",
          affiliation = "Department of Biogeochemical Systems, Max Planck Institute for 
                         Biogeochemistry, Jena, Germany and Department of Earth and 
                         Planetary Science, Harvard University, Cambridge, MA, USA and 
                         Department of Biogeochemical Systems, Max Planck Institute for 
                         Biogeochemistry, Jena, Germany and Department of Biogeochemical 
                         Systems, Max Planck Institute for Biogeochemistry, Jena, Germany 
                         and Department of Biogeochemical Systems, Max Planck Institute for 
                         Biogeochemistry, Jena, Germany and Department of Biogeochemical 
                         Systems, Max Planck Institute for Biogeochemistry, Jena, Germany 
                         and Center for Earth System Science, National Institute for Space 
                         Research, S{\~a}o Jos{\'e} dos Campos, Brazil and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and Department of Earth and Planetary 
                         Science, Harvard University, Cambridge, MA, USA and Instituto de 
                         Fisica, Universidade de Sao Paulo, S{\~a}o Paulo, Brazil and 
                         Department of Biogeochemical Systems, Max Planck Institute for 
                         Biogeochemistry, Jena, Germany and Department of Biogeochemical 
                         Systems, Max Planck Institute for Biogeochemistry, Jena, Germany 
                         and Department of Biogeochemical Systems, Max Planck Institute for 
                         Biogeochemistry, Jena, Germany and Department of Earth and 
                         Planetary Science, Harvard University, Cambridge, MA, USA and 
                         Department of Earth and Planetary Science, Harvard University, 
                         Cambridge, MA, USA and Department of Earth and Planetary Science, 
                         Harvard University, Cambridge, MA, USA and Department of Earth and 
                         Planetary Science, Harvard University, Cambridge, MA, USA and 
                         Department of Earth and Planetary Science, Harvard University, 
                         Cambridge, MA, USA and Instituto de Fisica, Universidade de Sao 
                         Paulo, S{\~a}o Paulo, Brazil and Instituto de Fisica, 
                         Universidade de Sao Paulo, S{\~a}o Paulo, Brazil and 
                         Biogeochemistry Department, Max Planck Institute for Chemistry, 
                         Mainz, Germany and Biogeochemistry Department, Max Planck 
                         Institute for Chemistry, Mainz, Germany and Institute for Marine 
                         and Atmospheric Research Utrecht, Utrecht University, Utrecht, 
                         Netherlands and Institute for Marine and Atmospheric Research 
                         Utrecht, Utrecht University, Utrecht, Netherlands",
                title = "High resolution WRF-VPRM modeling of atmospheric CO2 over the 
                         Amazon during BARCA: Assessment of representativeness",
            booktitle = "Abstracts...",
                 year = "2010",
         organization = "The Meeting of the Americas.",
             keywords = "Biosphere, atmosphere interactions, biogeochemical cycles, 
                         processes, and modeling, biosphere, atmosphere interactions, 
                         carbon cycling.",
             abstract = "High resolution forward modeling of CO2 over the Amazon was 
                         performed for the period of the BARCA (Balan{\c{c}}o 
                         Atmosf{\'e}rico Regional de Carbono na Amaz{\^o}nia) campaign. 
                         For this, a Eulerian as well as a Lagrangian approach were used. 
                         The Eulerian framework WRF-VPRM combines the mesoscale chemical 
                         transport model WRF-Chem with the diagnostic biosphere model VPRM 
                         (Vegetation Photosynthesis and Respiration Model). VPRM, driven by 
                         the MODIS 8-daily indices EVI and LSWI at high spatial resolution 
                         (10 km) and by WRF radiation and temperature fields, provides 
                         hourly a priori fluxes for biosphere-atmosphere exchange. The 
                         WRF-VPRM simulations show realistic spatiotemporal variations of 
                         CO2, ideal for assessing the relationship between patterns in 
                         surface-atmosphere fluxes and those in atmospheric mixing ratios. 
                         As a Lagrangian framework, STILT (Stochastic Time Inverted 
                         Lagrangian Transport) coupled to VPRM fluxes was used, starting 
                         ensembles of particle back-trajectories along the flight paths and 
                         providing contributions from upstream surface influences. A 
                         comprehensive comparison of the mesoscale simulations with the 
                         extensive airborne observations during BARCA covering the lower 
                         troposphere with a multitude of vertical profiles over the Amazon 
                         is presented. This is used for assessing the representativeness of 
                         BARCA measurements, with special focus on the ability of the 
                         aircraft to sample the 3D distribution of CO2 over the entire 
                         Amazon Basin. In addition, model output is compared against long 
                         term tower based measurements from different sites, establishing 
                         their regional representativeness. A comparison of measured 
                         vertical gradients with those from the Lagrangian and Eulerian 
                         simulations is made to evaluate the models ability to represent 
                         vertical transport through turbulent mixing and convective 
                         uplifting. This study represents a precondition for utilization of 
                         those measurements and modeling systems in mesoscale inverse 
                         analyses to derive sub-basin scale flux estimates.",
  conference-location = "Foz do Igua{\c{c}}u, BR",
      conference-year = "08-12 aug 2010",
             language = "en",
        urlaccessdate = "19 jan. 2021"
}


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