All seismometers are back!

Written by Karin Sigloch, Guilhem Barruol on Saturday, 30 November 2013. Posted in Cruise 2013

29 November 2013

All seismometers are back!

 

 On another gorgeous day, now 200 km southeast of Mauritius, we pulled ocean-bottom seismometer RR56 out of the water – our last instrument is back. Its ascent may have been accompanied by a whale. The big animal surfaced directly next to the ship immediately after we had pulled the OBS onboard, and dove back and forth beneath the ship’s hull twice before disappearing into the blue. A farewell from Neptune? The science party greeted back with excited shouts in any case.

57 OBS deployed, 57 recovered a year later: big relief among technicians and scientists because the marine environment is harsh, technology has its weaknesses, and losses would not have come as a surprise. Some luck is definitely needed, but when you achieve a recovery rate of 100%, you also know that you did something right. Thank you very much to our extremely professional OBS teams: Erik, Edith, Maria, Kasra and Juan for the German instruments, and Romuald and Xuan for the French OBS!

About the Author

Karin Sigloch

Karin Sigloch

The German part of RHUM-RUM is led by Karin Sigloch, Department of Earth Sciences, Ludwig-Maximilians-Universität, Munich, Germany. 

Guilhem BARRUOL

Guilhem Barruol

The French part of RHUM-RUM is led by Guilhem Barruol, CNRS, Institut de Physique du Globe de Paris, Laboratoire GéoSciences Réunion, Université de La Réunion, Saint Denis, La Réunion, France.

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