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Using Copernicus Sentinel-2 and Sentinel-3 data to monitor harmful algal blooms in Southern Chile during the COVID-19 lockdown.

Abstract：

:During the southern summer of 2020, large phytoplankton blooms were detected using satellite technology in Chile (western Patagonia), where intensive salmonid aquaculture is carried out. Some harvesting sites recorded massive fish mortalities, which were associated with the presence of the dinoflagellate species Cochlodinium sp. The bloom included other phytoplankton species, as Lepidodinium chlorophorum, which persistently changed the colour of the ocean to green. These blooms coincided with the government-managed emergency lockdown due to the COVID-19 pandemic. Local in situ sampling was slowed down. However, imagery from the Copernicus programme allowed operational monitoring. This study shows the benefits of both Sentinel-3 and Sentinel-2 satellites in terms of their spectral, spatial and temporal capabilities for improved algal bloom monitoring. These novel tools, which can foster optimal decision-making, are available for delivering early alerts in situations of natural catastrophes and blockages, such as those occurred during the global COVID-19 lockdown.

journal_name

Mar Pollut Bull

journal_title

Marine pollution bulletin

authors

Rodríguez-Benito CV,Navarro G,Caballero I

doi

10.1016/j.marpolbul.2020.111722

subject

Has Abstract

pub_date

2020-12-01 00:00:00

pages

111722

issue

Pt A

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(20)30840-7

journal_volume

161

pub_type

杂志文章

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