Intense activity in the Indian Ocean for Beautemps-Beaupré

June 24, 2019 (Google Translation) – In April, the Beautemps-Beaupré Hydrographic and Oceanographic Building (BHO) conducted a campaign in the heart of the Indian Ocean to benefit the National Center for Scientific Research (CNRS). This campaign was part of the ship-sharing agreement between the French Navy, Ifremer (French Institute for the Exploitation of the Sea) and the Hydrographic and Oceanographic Service of the Navy (Shom).

The aim was to explore the Carlsberg Ridge, which runs along the North / North-West Indian Ocean, to better understand the evolution over time of plate tectonics responsible for the diversity of landscapes. and submarines.

The Beautemps Beaupré then conducted oceanographic campaign “PHYSINDIEN 2019” conducted in the Arabian Sea under the operational control of the admiral, commander of the maritime zone of the Indian Ocean (ALINDIEN). The results obtained will be used to improve the sonar range prediction models made available by Shom for the benefit of submarines and anti-submarine frigates operating in the area.

A particularly complex area, the Arabian Sea is subject to the influence of the Red Sea and the Arabian Gulf, which are areas of formation of very salty water bodies subjected to intense evaporation. These bodies of water flow into the Arabian Sea via the gulfs of Aden and Oman and are transported in the form of a deep-water vein. To study how these water masses interact with each other, many measurements have been made in situ in order to better understand the physical processes involved (currents, temperature profiles, properties of water bodies).

Preparation and launching of the CTD. The electro-transport cable makes it possible to identify, as soon as the descent, the immersions to which the sampling bottles will be triggered at the ascent.