Validation of the Sentinel-3 Ocean and Land Colour Instrument (OLCI) Terrestrial Chlorophyll Index (OTCI): synergetic exploitation of the Sentinel-2 missions

Brown, LA; Dash, J; Lidon, AL; Lopez-Baeza, E; Dransfeld, S

Abstract

Continuity to the Medium Resolution Imaging Spectrometer (MERIS) Terrestrial Chlorophyll Index (MTCI) will be provided by the Sentinel-3 Ocean and Land Colour Instrument (OLCI), and to ensure its utility in a wide range of operational applications, validation efforts are required. In the past, these activities have been constrained by the need for costly airborne hyperspectral data acquisition, but the Sentinel-2 Multispectral Instrument (MSI) now offers a promising alternative. In this paper, we explore the synergetic use of Sentinel-2 MSI data for validation of the Sentinel-3 OLCI Terrestrial Chlorophyll Index (OTCI) over the Valencia Anchor Station, a large agricultural site in the Valencian Community, Spain. High retrieval accuracy (RMSE = 0.20 g m -2 ) was obtained by applying machine learning techniques to Sentinel-2 MSI data, highlighting the valuable information it can provide when used in synergy with Sentinel-3 OLCI data for land product validation.

Citation

Brown, L., Dash, J., Lidon, A., Lopez-Baeza, E., & Dransfeld, S. (2018, July). Validation of the Sentinel-3 Ocean and Land Colour Instrument (OLCI) Terrestrial Chlorophyll Index (OTCI): synergetic exploitation of the Sentinel-2 missions. Presented at IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, Valencia, Spain

• Presentation Conference Type: Other
• Conference Name: IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium
• Conference Location: Valencia, Spain
• Start Date: Jul 22, 2018
• End Date: Jul 27, 2018
• Online Publication Date: Nov 4, 2018
• Publication Date: Nov 4, 2018
• Deposit Date: Oct 28, 2022
• Publisher: Institute of Electrical and Electronics Engineers
• ISBN: 9781538671504
• DOI: https://doi.org/10.1109/igarss.2018.8518076
• Publisher URL: http://doi.org/10.1109/igarss.2018.8518076
• Additional Information: Event Type : Conference