Global maps of Forel–Ule index, hue angle and Secchi disk depth derived from 21 years of monthly ESA Ocean Colour Climate Change Initiative data

Pitarch, Jaime; Bellacicco, Marco; Marullo, Salvatore; van der Woerd, Hendrik J.

doi:https://doi.org/10.5194/essd-13-481-2021

Articles | Volume 13, issue 2

https://doi.org/10.5194/essd-13-481-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/essd-13-481-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 2

Data description paper

|

16 Feb 2021

Data description paper |

| 16 Feb 2021

Global maps of Forel–Ule index, hue angle and Secchi disk depth derived from 21 years of monthly ESA Ocean Colour Climate Change Initiative data

Jaime Pitarch, Marco Bellacicco, Salvatore Marullo, and Hendrik J. van der Woerd

Data sets

Twenty years of monthly global maps of Hue angle, Forel-Ule and Secchi disk depth, based on ESA-OC-CCI data Pitarch, Jaime; van der Woerd, Hendrik J; Brewin, Robert J W; Zielinski, Oliver https://doi.org/10.1594/PANGAEA.904266

Model code and software

hue-FU-secchi Pitarch, Jaime https://doi.org/10.5281/zenodo.4439646

Short summary

Ocean monitoring is crucial to understand the regular seasonality and the drift induced by climate change. Satellites offer a possibility to monitor the complete surface of the Earth within a few days with a harmonized methodology, reaching resolutions of few kilometres. We revisit traditional ship survey optical parameters such as the Secchi disk depth and the Forel–Ule index and derive them from satellite observations. Our time series is 21 years long and has global coverage.