Sargassum Floating Algae Index with Sentinel-2A&B and Landsat 8&9 satellites.

Composite detection of sargassum with MSI and OLI for July 15th, 2022. Sargassum mats are shown in red, clouds and tile limits are shown in grey. Credits CLS.

Composite maps of sargassum detection index NFAI (Normalized Floating Algae Index).

Types of dataset: multimission dataset using MSI instruments onboard Sentinel-2A&B satellites and OLI instruments onboard Landsat-8&9.

DOI: 10.24400/527896/a01-2024.001  -  more metadata

Contents: sargassum detection index (NFAI) maps computed at 20m on specific HR geographical areas from images of MSI Sentinel-2A & 2B resolution every 2-3 days, and OLI Landsat-8 & 9 every 8 days at most, and merged in 300m resolution maps after each satellite pass covering the area of interest.

Use: refine sargassum detection near coast thanks to high resolution sensors.

Condition of access: these products are delivered for any purposes as stated in the licence agreement

Description: gridded products provided in delayed-time since December 7th, 2020, to a month before current date, made available as part of SeSaM SCO project (https://www.spaceclimateobservatory.org/sesam). Each map represents the sargassum presence at 300m.

Citation: when using this product, please cite: “The Sargassum Floating Algae Index product has been produced by CLS operationally in the frame of the SAMTool service. The product is distributed by Aviso+ (DOI 10.24400/527896/a01-2024.001) with support from SCO-CNES.”

Geographic coverage:: coastal waters from 11°N to 22°N, 89°W to 57.5°W up to 20 km from the shore

Format: NetCDF-4 Classic with CF standards.

Tools:

Copyright : 2020 - ongoing, Cls

to get access Aviso products and select the product "Sargassum detection products"

Sargassum Floating Algae Index - MSI and OLI

Product Satellite DOI Authenticated access service  Frequency Data period Dataset name
Sargassum detection - Floating Algae Index - MSI and OLI MSI instruments on Sentinel-2A&B and OLI instruments on Landsat 8&9 10.24400/527896/a01-2024.001 see your MY AVISO+ Daily 2020/12/07 to one month delay dataset-sargassum-cls-merged-msi-oli-global-lr