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@ARTICLE{DeCannire:903179,
      author       = {De Cannière, S. and Herbst, Michael and Vereecken, H. and
                      Defourny, P. and Jonard, F.},
      title        = {{C}onstraining water limitation of photosynthesis in a crop
                      growth model with sun-induced chlorophyll fluorescence},
      journal      = {Remote sensing of environment},
      volume       = {267},
      issn         = {0034-4257},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2021-04899},
      pages        = {112722 -},
      year         = {2021},
      abstract     = {Water fulfils key roles in maintaining a plant's biological
                      activity. Water shortage induces stomatal closure, causing a
                      reduction in photosynthesis and transpiration rates.
                      Sun-induced chlorophyll fluorescence (SIF) emission is
                      sensitive to subtle, stress-induced variations in
                      non-photochemical quenching and in photosynthetic electron
                      transport, caused by e.g., a fluctuation in the water
                      availability. Based on this sensitivity, a framework for
                      calibrating a water stress function in a crop growth model
                      using ground-based SIF observations is proposed. SIF time
                      series are simulated by coupling the AgroC crop growth model
                      to the Soil Canopy Observations Photosynthesis Energy
                      (SCOPE) model. This allowed parametrizing the water stress
                      function in the AgroC crop growth model, resulting in
                      improved estimates of actual evapotranspiration and net
                      ecosystem exchange over a sugar beet stand during stressed
                      periods. The improvement in the estimation of the water and
                      carbon fluxes by AgroC during the summer months highlights
                      the ability of canopyscale SIF observations to serve as a
                      remote sensing metric to indicate the intensity of a stress
                      condition. We argue that our framework, linking SIF emission
                      to stress functions, can be used to extract information
                      concerning drought stress from the Fluorescence Explorer
                      (FLEX) satellite, scheduled for launch in 2024.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2173},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000708537500003},
      doi          = {10.1016/j.rse.2021.112722},
      url          = {https://juser.fz-juelich.de/record/903179},
}