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@ARTICLE{Rascher:276580,
      author       = {Rascher, Uwe and Alonso, L. and Burkart, A. and Cilia, C.
                      and Cogliati, S. and Colombo, R. and Damm, A. and Drusch, M.
                      and Guanter, L. and Hanus, J. and Hyvärinen, T. and
                      Julitta, T. and Jussila, J. and Kataja, K. and Kokkalis, P.
                      and Kraft, S. and Kraska, T. and Matveeva, M. and Moreno, J.
                      and Muller, O. and Panigada, C. and Pikl, M. and Pinto, F.
                      and Prey, L. and Pude, R. and Rossini, M. and Schickling, A.
                      and Schurr, U. and Schüttemeyer, D. and Verrelst, J. and
                      Zemek, F.},
      title        = {{S}un-induced fluorescence - a new probe of photosynthesis:
                      {F}irst maps from the imaging spectrometer  {H}y{P}lant},
      journal      = {Global change biology},
      volume       = {21},
      number       = {12},
      issn         = {1354-1013},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2015-06945},
      pages        = {4673 - 4684},
      year         = {2015},
      abstract     = {Variations in photosynthesis still cause substantial
                      uncertainties in predicting photosynthetic CO2 uptake rates
                      and monitoring plant stress. Changes in actual
                      photosynthesis that are not related to greenness of
                      vegetation are difficult to measure by reflectance based
                      optical remote sensing techniques. Several activities are
                      underway to evaluate the sun-induced fluorescence signal on
                      the ground and on a coarse spatial scale using space-borne
                      imaging spectrometers. Intermediate-scale observations using
                      airborne-based imaging spectroscopy, which are critical to
                      bridge the existing gap between small-scale field studies
                      and global observations, are still insufficient. Here we
                      present the first validated maps of sun-induced fluorescence
                      in that critical, intermediate spatial resolution, employing
                      the novel airborne imaging spectrometer HyPlant. HyPlant has
                      an unprecedented spectral resolution, which allows for the
                      first time quantifying sun-induced fluorescence fluxes in
                      physical units according to the Fraunhofer Line Depth
                      Principle that exploits solar and atmospheric absorption
                      bands. Maps of sun-induced fluorescence show a large spatial
                      variability between different vegetation types, which
                      complement classical remote sensing approaches. Different
                      crop types largely differ in emitting fluorescence that
                      additionally changes within the seasonal cycle and thus may
                      be related to the seasonal activation and deactivation of
                      the photosynthetic machinery. We argue that sun-induced
                      fluorescence emission is related to two processes: (i) the
                      total absorbed radiation by photosynthetically active
                      chlorophyll; and (ii) the functional status of actual
                      photosynthesis and vegetation stress.},
      cin          = {IBG-2},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000364777400032},
      pubmed       = {pmid:26146813},
      doi          = {10.1111/gcb.13017},
      url          = {https://juser.fz-juelich.de/record/276580},
}