Data from two moorings and a Moving Vessel Profiler in the Bay of Biscay (ETOILE campaign - 09/07/2017 to 02/08/2017 )

This data set includes all the data from the ETOILE campaign (https://doi.org/10.17600/17010800) used in the paper:

Moncuquet A., N. L. Jones, A. P. Zulberti, F. Dufois, L. Bordois, P. Lazure. Observations of mode-one nonlinear internal waves of opposite polarity in changing background conditions, submitted to Journal of Geophysical Research in September 2023.

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The ETOILE campaign (https://doi.org/10.17600/17010800) has been designed to study internal dynamics in the Bay of Biscay.
The data archived here are from 2 moorings with ADCPs and temperature/pressure sensors deployed from 09/07/2017 to 02/08/2017. It also includes vertical profiles of CTD measurements performed between the 25th of and 29th of July 2017 using a moving vessel profiler (MVP).

Outer shelf mooring (2L)

The 2L mooring was moored along the 150 m isobath.
The 2L mooring had 9 thermistors distributed between 70cm above the bottom and 20 m below the surface, with an acquisition frequency of 1 minute. The bottoms mounted ADCP (RDI Sentinel 300 kHz) was deployed with an acquisition frequency of 2s. The ADCP and the mooring line were separated by 1.4km and respectively located at 43°59.9N, 2°02.537W and 44°00.1N, 2°01.5W.

The folder named "2L_mooring" includes the following files:
- 2L_MooringLine.mat: a matlab format file with pressure and temperature data.
- ADCP_2L_UVW.mat: a matlab format file with ADCP velocity data in earth coordinates.
- ADCP_2L_EAS.mat: a matlab format file with ADCP backscatter data.
- ADCP_2L_PG.mat: a matlab format file with ADCP "Percentage Good" RDI values.

Inner shelf mooring (2C)

The 2C mooring was moored along the 60 m isobath.
The 2C mooring had 6 thermistors distributed between 70cm above the bottom and 20 m below the surface, with an acquisition frequency of 1 minute. The bottoms mounted ADCP (RDI Sentinel 300 kHz) was deployed with an acquisition frequency of 2s. The ADCP and the mooring line were collocated and located at 44°00N, 1°31W.

The folder named "2C_mooring" includes the following files:
- 2C_MooringLine.mat: a matlab format file with pressure and temperature data.
- ADCP_2C_UVW.mat: a matlab format file with ADCP velocity data in earth coordinates.
- ADCP_2C_EAS.mat: a matlab format file with ADCP backscatter data.
- ADCP_2C_PG.mat: a matlab format file with ADCP "Percentage Good" RDI values.

MVP profiles

The MVP is a self-profiling system capable of measuring pressure P, conductivity sigma, temperature T, salinity S and density rho, behind a travelling vessel at high frequency. The MVP profiled along a 52 km long transect down to 300 m depth for the first two days at a boat speed of 4 knots. The last two days the MVP profiled down to 100 m along a 15 km long transect at a boat speed of 6 knots. A bottom safe margin of 13 m was used to prevent the MVP from hitting the bottom. 

The folder named "MovingVesselProfiler" includes the MVP files in a native ascii format, with one file per profile (including both downcast and upcast). The file headers includes all the metadata including the time and position of each profile.