The TROPOSIF global sun-induced fluorescence dataset from the Sentinel-5P TROPOMI mission

<p>The first satellite-based global retrievals of terrestrial sun-induced chlorophyll fluorescence (SIF) were achieved in 2011. Since then, a number of global SIF datasets with different spectral, spatial, and temporal sampling characteristics have become available to the scientific community....

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Autores principales: L. Guanter, C. Bacour, A. Schneider, I. Aben, T. A. van Kempen, F. Maignan, C. Retscher, P. Köhler, C. Frankenberg, J. Joiner, Y. Zhang
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Publicado: Copernicus Publications 2021
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spelling oai:doaj.org-article:be9d9cb2edb04e30985258281ac6085f2021-11-19T14:20:22ZThe TROPOSIF global sun-induced fluorescence dataset from the Sentinel-5P TROPOMI mission10.5194/essd-13-5423-20211866-35081866-3516https://doaj.org/article/be9d9cb2edb04e30985258281ac6085f2021-11-01T00:00:00Zhttps://essd.copernicus.org/articles/13/5423/2021/essd-13-5423-2021.pdfhttps://doaj.org/toc/1866-3508https://doaj.org/toc/1866-3516<p>The first satellite-based global retrievals of terrestrial sun-induced chlorophyll fluorescence (SIF) were achieved in 2011. Since then, a number of global SIF datasets with different spectral, spatial, and temporal sampling characteristics have become available to the scientific community. These datasets have been useful to monitor the dynamics and productivity of a range of vegetated areas worldwide, but the coarse spatiotemporal sampling and low signal-to-noise ratio of the data hamper their application over small or fragmented ecosystems. The recent advent of the Copernicus Sentinel-5P TROPOMI mission and the high quality of its data products promise to alleviate this situation, as TROPOMI provides daily global measurements at a much denser spatial and temporal sampling than earlier satellite instruments. In this work, we present a global SIF dataset produced from TROPOMI measurements within the TROPOSIF project funded by the European Space Agency. The current version of the TROPOSIF dataset covers the time period between May 2018 and April 2021. Baseline SIF retrievals are derived from the 743–758 nm window. A secondary SIF dataset derived from an extended fitting window (735–758 <span class="inline-formula">nm</span> window) is included. This provides an enhanced signal-to-noise ratio at the expense of a higher sensitivity to atmospheric effects. Spectral reflectance spectra at seven 3 <span class="inline-formula">nm</span> windows devoid of atmospheric absorption within the 665–785 <span class="inline-formula">nm</span> range are also included in the TROPOSIF dataset as an important ancillary variable to be used in combination with SIF. The methodology to derive SIF and ancillary data as well as results from an initial data quality assessment are presented in this work. The TROPOSIF dataset is available through the following digital object identifier (DOI): <span class="uri">https://doi.org/10.5270/esa-s5p_innovation-sif-20180501_20210320-v2.1-202104</span> <span class="cit" id="xref_paren.1">(<a href="#bib1.bibx17">Guanter et al.</a>, <a href="#bib1.bibx17">2021</a>)</span>.</p>L. GuanterC. BacourA. SchneiderA. SchneiderI. AbenT. A. van KempenF. MaignanC. RetscherP. KöhlerC. FrankenbergJ. JoinerY. ZhangCopernicus PublicationsarticleEnvironmental sciencesGE1-350GeologyQE1-996.5ENEarth System Science Data, Vol 13, Pp 5423-5440 (2021)
institution DOAJ
collection DOAJ
language EN
topic Environmental sciences
GE1-350
Geology
QE1-996.5
spellingShingle Environmental sciences
GE1-350
Geology
QE1-996.5
L. Guanter
C. Bacour
A. Schneider
A. Schneider
I. Aben
T. A. van Kempen
F. Maignan
C. Retscher
P. Köhler
C. Frankenberg
J. Joiner
Y. Zhang
The TROPOSIF global sun-induced fluorescence dataset from the Sentinel-5P TROPOMI mission
description <p>The first satellite-based global retrievals of terrestrial sun-induced chlorophyll fluorescence (SIF) were achieved in 2011. Since then, a number of global SIF datasets with different spectral, spatial, and temporal sampling characteristics have become available to the scientific community. These datasets have been useful to monitor the dynamics and productivity of a range of vegetated areas worldwide, but the coarse spatiotemporal sampling and low signal-to-noise ratio of the data hamper their application over small or fragmented ecosystems. The recent advent of the Copernicus Sentinel-5P TROPOMI mission and the high quality of its data products promise to alleviate this situation, as TROPOMI provides daily global measurements at a much denser spatial and temporal sampling than earlier satellite instruments. In this work, we present a global SIF dataset produced from TROPOMI measurements within the TROPOSIF project funded by the European Space Agency. The current version of the TROPOSIF dataset covers the time period between May 2018 and April 2021. Baseline SIF retrievals are derived from the 743–758 nm window. A secondary SIF dataset derived from an extended fitting window (735–758 <span class="inline-formula">nm</span> window) is included. This provides an enhanced signal-to-noise ratio at the expense of a higher sensitivity to atmospheric effects. Spectral reflectance spectra at seven 3 <span class="inline-formula">nm</span> windows devoid of atmospheric absorption within the 665–785 <span class="inline-formula">nm</span> range are also included in the TROPOSIF dataset as an important ancillary variable to be used in combination with SIF. The methodology to derive SIF and ancillary data as well as results from an initial data quality assessment are presented in this work. The TROPOSIF dataset is available through the following digital object identifier (DOI): <span class="uri">https://doi.org/10.5270/esa-s5p_innovation-sif-20180501_20210320-v2.1-202104</span> <span class="cit" id="xref_paren.1">(<a href="#bib1.bibx17">Guanter et al.</a>, <a href="#bib1.bibx17">2021</a>)</span>.</p>
format article
author L. Guanter
C. Bacour
A. Schneider
A. Schneider
I. Aben
T. A. van Kempen
F. Maignan
C. Retscher
P. Köhler
C. Frankenberg
J. Joiner
Y. Zhang
author_facet L. Guanter
C. Bacour
A. Schneider
A. Schneider
I. Aben
T. A. van Kempen
F. Maignan
C. Retscher
P. Köhler
C. Frankenberg
J. Joiner
Y. Zhang
author_sort L. Guanter
title The TROPOSIF global sun-induced fluorescence dataset from the Sentinel-5P TROPOMI mission
title_short The TROPOSIF global sun-induced fluorescence dataset from the Sentinel-5P TROPOMI mission
title_full The TROPOSIF global sun-induced fluorescence dataset from the Sentinel-5P TROPOMI mission
title_fullStr The TROPOSIF global sun-induced fluorescence dataset from the Sentinel-5P TROPOMI mission
title_full_unstemmed The TROPOSIF global sun-induced fluorescence dataset from the Sentinel-5P TROPOMI mission
title_sort troposif global sun-induced fluorescence dataset from the sentinel-5p tropomi mission
publisher Copernicus Publications
publishDate 2021
url https://doaj.org/article/be9d9cb2edb04e30985258281ac6085f
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