Morning watch on the ecoCTD

We made four short criss-crossings of the Almeria-Oran front overnight, which is spectacularly sharp in salinity and density, before retrieving and packing up the instrument. The ecoCTD watch noticed a massive aggregation of jelly fish right at the front on every crossing of the front, except the last.

 

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Carefully recovering the ecoCTD
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The sunrise at the end of a long night

Lagrangian float deployment

On May 28, we deployed the Lagrangian float from the ship. The float is designed to stay with water of the same density in which it is placed, and since the flow is along constant density surfaces, the float follows the water extremely well. In this study, we are aiming to follow the trajectory of water in three-dimensions, as it gets horizontally advected, but also subducted (vertically) at the front. Later, the float was recovered from a small boat.

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Eric D’Asaro and Andrey Shcherbina checking the float
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Michael Omhart guiding it as it is lifted overboard by the ship’s crane