Hydrodynamic dataset from the UPCAST and CASSISED campaigns in the Cassidaigne canyon (NW Mediterranean Sea)

In the Gulf of Lions, Northwestern Mediterranean Sea, the Cassidaigne submarine canyon is located in an active circulation area. Water movements are modulated both by westerly and easterly winds and by the Northern Current's mesoscale structures. The Cassidaigne canyon interacts with the general circulation inducing locally complex hydrodynamic processes. In 2017 and 2019, two oceanographic cruises were carried out in the Cassidaigne canyon area to gather current and temperature data. 2 ADCPs were moored on the shelf at 100 m depth around the canyon head, and 3 ADCPs were moored along the canyon axis from its head at 400 m depth to the base of the continental slope at 1900 m depth. STBD turbidimeters were moored in the canyon head and gorge to quantify sediment transport in the canyon. In addition, three Mastodon-2d thermistor lines were moored around the canyon head. Current measurements revealed a local circulation modulated by the morphology of the canyon depending on the stratification. Cross-canyon currents were recorded during Northern Current intrusion events. Temperature measurements revealed the generation of upwelling events under strong westerly winds. Near the bottom, these in-situ measurements revealed turbidity currents related to the canyon internal hydrodynamics.

Data and resources

Raw data

ADCP B (UPCAST cruise; N43°06.2220 and E5°26.8620) - 3 MB

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Raw data

Shelf ADCP (CASSISED cruise; N43°08.7780 and E5°32.2440) - 15 MB

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Raw data

ADCP PeerGynt1 (CASSISED cruise; N43°08.2367 and E5°30.7570) - 16 MB

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Raw data

ADCP PeerGynt2 (CASSISED cruise; N43°01.3409 and E5°25.3316) - 16 MB

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Raw data

ADCP Aniitra (CASSISED cruise; N42°56.1653 and E5°25.5704) - 41 MB

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Raw data

Mastodon B' (UPCAST cruise; N43°06.2096 and E5°26.8616) - 3 MB

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Raw data

Mastodon C (UPCAST cruise; N43°08.453 and E5°27.140) - 3 MB

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Mastodon D (UPCAST cruise; N43°07.3953 and E5°30.3355) - 3 MB

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Raw data

STBD turbidimeter on PeerGynt1 (CASSISED cruise; N43°08.2367 and E5°30.7570) - 989 KB

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Raw data

STBD turbidimeter on PeerGynt2 (CASSISED cruise; N43°01.3409 and E5°25.3316) - 980 KB

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Quality controlled data

ADCP B (UPCAST cruise; N43°06.2220 and E5°26.8620) - 3 MB

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Quality controlled data

ADCP PeerGynt1 (CASSISED cruise; N43°08.2367 and E5°30.7570) - 23 MB

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Quality controlled data

ADCP PeerGynt2 (CASSISED cruise; N43°01.3409 and E5°25.3316) - 23 MB

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Quality controlled data

ADCP Aniitra (CASSISED cruise; N42°56.1653 and E5°25.5704) - 68 MB

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Quality controlled data

Shelf ADCP (CASSISED cruise; N43°08.7780 and E5°32.2440) - 22 MB

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DOI of the product

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Seanoe

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Additional information

Temporal extent	2017-08-17 – 2019-11-18
Date (publication)	2023-02-16
Date (revision)	2025-12-24
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	CC-BY-NC-ND (Creative Commons - Attribution, No commercial usage, No modification)
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show