Sun-induced chlorophyll fluorescence (Fs) is a remote sensing (RS) observable to be linked to plant photosynthesis. Variations of measured canopy Fs are, however, related to several effects in addition to a physiological response of plants. The impact of atmospheric scattering and absorption processes were identified as most critical if Fs retrievals are based on atmospheric O2-absorption bands. In this contribution, we aim to demonstrate the feasibility of airborne based Fs retrievals using the O2-A absorption band. We applied two airborne spectroscopy experiments including a non-imaging repeat-track approach with changing flight altitudes and a multitemporal imaging approach using the new HyPlant spectrometer. Our results demonstrate that atmospheric effects can be compensated and accurate airborne based Fs measurements can be obtained using atmospheric absorption features. Our results are particularly important in view of ESA's potential Earth Explorer 'Fluorescence Explorer' (FLEX) mission that intents to provide high resolution global maps of Fs using atmospheric oxygen absorption features.

Damm, A., Rossini, M., Colombo, R., Rascher, U., Schaepman, M. (2014). Airborne based spectroscopy to measure sun-induced chlorophyll fluorescence. In Workshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing (pp.1-4). IEEE Computer Society [10.1109/WHISPERS.2014.8077628].

Airborne based spectroscopy to measure sun-induced chlorophyll fluorescence

Rossini, M;Colombo, R;
2014

Abstract

Sun-induced chlorophyll fluorescence (Fs) is a remote sensing (RS) observable to be linked to plant photosynthesis. Variations of measured canopy Fs are, however, related to several effects in addition to a physiological response of plants. The impact of atmospheric scattering and absorption processes were identified as most critical if Fs retrievals are based on atmospheric O2-absorption bands. In this contribution, we aim to demonstrate the feasibility of airborne based Fs retrievals using the O2-A absorption band. We applied two airborne spectroscopy experiments including a non-imaging repeat-track approach with changing flight altitudes and a multitemporal imaging approach using the new HyPlant spectrometer. Our results demonstrate that atmospheric effects can be compensated and accurate airborne based Fs measurements can be obtained using atmospheric absorption features. Our results are particularly important in view of ESA's potential Earth Explorer 'Fluorescence Explorer' (FLEX) mission that intents to provide high resolution global maps of Fs using atmospheric oxygen absorption features.
slide + paper
agriculture; airborne based spectroscopy; Fraunhofer line depth (FLD); HyPlant; Sun-induced chlorophyll fluorescence;
agriculture; airborne based spectroscopy; Fraunhofer line depth (FLD); HyPlant; Sun-induced chlorophyll fluorescence; 1707; Signal Processing
English
6th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2014
2014
Damm, A
Workshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing
9781467390125
2014
2014-
1
4
8077628
https://ieeexplore.ieee.org/document/8077628
none
Damm, A., Rossini, M., Colombo, R., Rascher, U., Schaepman, M. (2014). Airborne based spectroscopy to measure sun-induced chlorophyll fluorescence. In Workshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing (pp.1-4). IEEE Computer Society [10.1109/WHISPERS.2014.8077628].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/187450
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