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Marine Heatwaves and Cold Spells: Dataset and Methods

Publisher
Marine Environmental Data & Information Network
Updated
23 July 2026
Topic
Not set
Licence
Not set

Summary

Cefas Data Cube Viewer which can be accessed here: https://eutro-cube.cefas.co.uk/_

This portal contains Ostia Marine Heatwaves (MHW) and Cold Spells (MCS) dataset between 2020-present. There are following datasets:

  • Daily MCS Flag: sea surface temperature below 10th percentile computed from 10 years of OSTIA L4 Reprocessed data for the particular day
  • Daily MHW Flag: sea surface temperature above 90th percentile computed from 10 years of OSTIA L4 Reprocessed data for the particular day
  • MCS Duration: The number of consecutive days since the trigger of the MCS in 10 days rolling window
  • MHW Duration: The number of consecutive days since the trigger of the MHW in 10 days rolling window
  • MCS Warning: Pixels, where sea surface temperature has been below 10th percentile for 1, 2, 3, 4, 5 days. This shows areas which could potentially become MCSs= a pixel being flagged as MCS 5 consecutive days in a row
  • MHW Warning: Pixels, where sea surface temperature has been above 90th percentile for 1, 2, 3, 4, 5 days. This shows areas which could potentially become MHWs= a pixel being flagged as MHW 5 consecutive days in a row

.. _https://eutro-cube.cefas.co.uk/: https://eutro-cube.cefas.co.uk/

Data links

Link Format Preview Updated
Cefas Data Portal – 23/7/2026

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Additional information

Source Metadata
XML, HTML
Date added
01 February 2024
Harvest GUID
CEFASa7ca777e-64f1-4b2a-ad35-1473dcb3b1ee
Extent (Latitude)
63.00° to 35.00°
Extent (Longitude)
-20.00° to 15.00°
Dataset reference date (publication)
2024-01-17
Dataset reference date (revision)
2024-02-01
Dataset reference date (creation)
2023-10-31
Frequency of update
daily
Responsible party
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) (originator, custodian, distributor)
ISO 19139 resource type
dataset
Metadata language
eng