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Vargas, Juan Quirós [Author]; Bendig, Juliane [Author]; Schüttemeyer, Dirk [Author]; Kraska, Thorsten [Author]; Muller, Onno [Author]; Rascher, Uwe [Author]; Mac Arthur, Alasdair [Author]; Burkart, Andreas [Author]; Julitta, Tommaso [Author]; Maseyk, Kadmiel [Author]; Thomas, Rick [Author]; Siegmann, Bastian [Author]; Rossini, Micol [Author]; Celesti, Marco [Author]

Unmanned Aerial Systems (UAS)-Based Methods for Solar Induced Chlorophyll Fluorescence (SIF) Retrieval with Non-Imaging Spectrometers: State of the Art

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  • Media type: E-Article
  • Title: Unmanned Aerial Systems (UAS)-Based Methods for Solar Induced Chlorophyll Fluorescence (SIF) Retrieval with Non-Imaging Spectrometers: State of the Art
  • Contributor: Vargas, Juan Quirós [Author]; Bendig, Juliane [Author]; Schüttemeyer, Dirk [Author]; Kraska, Thorsten [Author]; Muller, Onno [Author]; Rascher, Uwe [Author]; Mac Arthur, Alasdair [Author]; Burkart, Andreas [Author]; Julitta, Tommaso [Author]; Maseyk, Kadmiel [Author]; Thomas, Rick [Author]; Siegmann, Bastian [Author]; Rossini, Micol [Author]; Celesti, Marco [Author]
  • imprint: MDPI, 2020
  • Published in: Remote sensing 12(10), 1624 - (2020). doi:10.3390/rs12101624
  • Language: English
  • DOI: https://doi.org/10.3390/rs12101624
  • ISSN: 2072-4292
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: Chlorophyll fluorescence (ChlF) information offers a deep insight into the plant physiological status by reason of the close relationship it has with the photosynthetic activity. The unmanned aerial systems (UAS)-based assessment of solar induced ChlF (SIF) using non-imaging spectrometers and radiance-based retrieval methods, has the potential to provide spatio-temporal photosynthetic performance information at field scale. The objective of this manuscript is to report the main advances in the development of UAS-based methods for SIF retrieval with non-imaging spectrometers through the latest scientific contributions, some of which are being developed within the frame of the Training on Remote Sensing for Ecosystem Modelling (TRuStEE) program. Investigations from the Universities of Edinburgh (School of Geosciences) and Tasmania (School of Technology, Environments and Design) are first presented, both sharing the principle of the spectroradiometer optical path bifurcation throughout, the so called ‘Piccolo-Doppio’ and ‘AirSIF’ systems, respectively. Furthermore, JB Hyperspectral Devices’ ongoing investigations towards the closest possible characterization of the atmospheric interference suffered by orbital platforms are outlined. The latest approach focuses on the observation of one single ground point across a multiple-kilometer atmosphere vertical column using the high altitude UAS named as AirFloX, mounted on a specifically designed and manufactured fixed wing platform: ‘FloXPlane’. We present technical details and preliminary results obtained from each instrument, a summary of their main characteristics, and finally the remaining challenges and open research questions are addressed. On the basis of the presented findings, the consensus is that SIF can be retrieved from low altitude spectroscopy. However, the UAS-based methods for SIF retrieval still present uncertainties associated with the current sensor characteristics and the spatio-temporal mismatching between aerial and ground measurements, which ...
  • Access State: Open Access