[1656] - Sun-induced fluorescence – a new probe of photosynthesis: First maps from the imaging spectrometer HyPlant

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Rascher, U., Alonso, L., Burkart, A., Cilia, C., Cogliati, S., Colombo, R., Damm, A., Drusch, M., Guanter, L., Hanus, J., Hyvärinen, T., Julitta, T., Jussila, J., Kataja, K., Kokkalis, P. N., Kraft, S., Kraska, T., Matveeva, M., Moreno, J. F., Muller, O., Panigada, C., Pikl, M., Pinto, F., Prey, L., Prude, R., Rossini, M., Schickling, A., Schurr, U., Schüttemeyer, D., Verrelst, J., Zemek, F., 2015. Sun-induced fluorescence – a new probe of photosynthesis: First maps from the imaging spectrometer HyPlant. Global Change Biology, 21, 4673 - 4684. DOI: 10.1111/gcb.13017.
Title(s):Main Title: Sun-induced fluorescence – a new probe of photosynthesis: First maps from the imaging spectrometer HyPlant
Description(s):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.
Identifier(s):DOI: 10.1111/gcb.13017
Responsible Party
Creator(s):Author: Uwe Rascher
Author: Luis Alonso
Author: Andreas Burkart
Author: Chiara Cilia
Author: Sergio Cogliati
Author: Roberto Colombo
Author: Alexander Damm
Author: Matthias Drusch
Author: Luis Guanter
Author: Jan Hanus
Author: Timo Hyvärinen
Author: Tommaso Julitta
Author: Jouni Jussila
Author: Kari Kataja
Author: Panagiotis N. Kokkalis
Author: Stefan Kraft
Author: Thorsten Kraska
Author: Maria Matveeva
Author: Jose F. Moreno
Author: Onno Muller
Author: Cinzia Panigada
Author: Miroslav Pikl
Author: Francisco Pinto
Author: L. Prey
Author: Ralf Prude
Author: Micol Rossini
Author: Anke Schickling
Author: Ulrich Schurr
Author: Dirk Schüttemeyer
Author: Jochem Verrelst
Author: Frantisek Zemek
Publisher:John Wiley & Sons Ltd
TR32 Topic:Vegetation
Related Sub-project(s):D2
Subject(s):CRC/TR32 Keywords: Airborne Measurements, Chlorophyll Fluorescence, Photosynthesis, Remote Sensing, Fluorescence, Vegetation
File Details
File Name:Rascher_et_al_2015.pdf
Data Type:Text
Size(s):12 Pages
File Size:987 kB (0.964 MB)
Date(s):Date Accepted: 2015-05-26
Mime Type:application/pdf
Data Format:PDF
Download Permission:OnlyTR32
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Licence:TR32DB Data policy agreement
North:-no map data
Measurement Region:Other
Measurement Location:--Other--
Specific Informations - Publication
Article Type:Journal
Source:Global Change Biology
Number Of Pages:12
Page Range:4673 - 4684
Metadata Details
Metadata Creator:Tanja Kramm
Metadata Created:2017-05-26
Metadata Last Updated:2017-05-26
Funding Phase:3
Metadata Language:English
Metadata Version:V41
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