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Potential of the TROPOspheric Monitoring Instrument (TROPOMI) onboard the Sentinel-5 Precursor for the monitoring of terrestrial chlorophyll fluorescence

Guanter, L. and Aben, I. and Tol, P. and Krijger, J. M. and Hollstein, A. and Köhler, P. and Damm, A. and Joiner, J. and Frankenberg, C. and Landgraf, J. (2015) Potential of the TROPOspheric Monitoring Instrument (TROPOMI) onboard the Sentinel-5 Precursor for the monitoring of terrestrial chlorophyll fluorescence. Atmospheric Measurement Techniques, 8 (3). pp. 1337-1352. ISSN 1867-8548. https://resolver.caltech.edu/CaltechAUTHORS:20200529-093433604

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Abstract

Global monitoring of sun-induced chlorophyll fluorescence (SIF) is improving our knowledge about the photosynthetic functioning of terrestrial ecosystems. The feasibility of SIF retrievals from spaceborne atmospheric spectrometers has been demonstrated by a number of studies in the last years. In this work, we investigate the potential of the upcoming TROPOspheric Monitoring Instrument (TROPOMI) onboard the Sentinel-5 Precursor satellite mission for SIF retrieval. TROPOMI will sample the 675–775 nm spectral window with a spectral resolution of 0.5 nm and a pixel size of 7 km × 7 km. We use an extensive set of simulated TROPOMI data in order to assess the uncertainty of single SIF retrievals and subsequent spatio-temporal composites. Our results illustrate the enormous improvement in SIF monitoring achievable with TROPOMI with respect to comparable spectrometers currently in-flight, such as the Global Ozone Monitoring Experiment-2 (GOME-2) instrument. We find that TROPOMI can reduce global uncertainties in SIF mapping by more than a factor of 2 with respect to GOME-2, which comes together with an approximately 5-fold improvement in spatial sampling. Finally, we discuss the potential of TROPOMI to map other important vegetation parameters at a global scale with moderate spatial resolution and short revisit time. Those include leaf photosynthetic pigments and proxies for canopy structure, which will complement SIF retrievals for a self-contained description of vegetation condition and functioning.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.5194/amt-8-1337-2015DOIArticle
ORCID:
AuthorORCID
Guanter, L.0000-0002-8389-5764
Köhler, P.0000-0002-7820-1318
Joiner, J.0000-0003-4278-1020
Frankenberg, C.0000-0002-0546-5857
Landgraf, J.0000-0002-6069-0598
Additional Information:© Author(s) 2015. This work is distributed under the Creative Commons Attribution 3.0 License. Received: 09 Sep 2014 – Discussion started: 15 Dec 2014 – Revised: 03 Mar 2015 – Accepted: 04 Mar 2015 – Published: 19 Mar 2015. This research has been funded by the Emmy Noether Programme of the German Research Foundation (GU 1276/1-1). Jochem Verrelst and Luis Alonso from the University of Valencia are thanked for the reflectance and fluorescence simulations produced in the framework of the ESA FLUSS project. We would also like to thank the Editor and two anonymous reviewers for their helpful comments. The article processing charges for this open-access publication have been covered by a Research Centre of the Helmholtz Association. Edited by: A. Richter.
Funders:
Funding AgencyGrant Number
Deutsche Forschungsgemeinschaft (DFG)GU 1276/1-1
Issue or Number:3
Record Number:CaltechAUTHORS:20200529-093433604
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200529-093433604
Official Citation:Guanter, L., Aben, I., Tol, P., Krijger, J. M., Hollstein, A., Köhler, P., Damm, A., Joiner, J., Frankenberg, C., and Landgraf, J.: Potential of the TROPOspheric Monitoring Instrument (TROPOMI) onboard the Sentinel-5 Precursor for the monitoring of terrestrial chlorophyll fluorescence, Atmos. Meas. Tech., 8, 1337–1352, https://doi.org/10.5194/amt-8-1337-2015, 2015.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103557
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:01 Jun 2020 15:01
Last Modified:01 Jun 2020 15:01

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