The Slop Chest

According to Wikipedia’s glossary of nautical terms, a slop chest is ‘A ship’s store of merchandise, such as clothing, tobacco, etc., maintained aboard merchant ships for sale to the crew.’ About once a week Captain Mark opens up the slop chest in case anyone needs an item. All the items fit into one cabinet, but … More The Slop Chest

Operations Update

Today we finished the ocean bottom seismometer (OBS) part of our survey! We carried out 5 profiles, each with 7 OBSs. For every profile we deployed the instruments, traversed back along the profile while the OBSs recorded our sound source, and then recovered the instruments (more on that later). It is very satisfying to have all OBSs back … More Operations Update

Seeing with Sound

Hi there. My name is John Greene. I am a PhD student studying geophysics at Texas A&M, and today I will be telling you all about multibeam bathymetry. Throughout history, water depth has been one of the fundamental measurements taken by vessels at sea. This used to be done with the very tedious method of … More Seeing with Sound

Seasickness and Sunsets

Hello everyone! My name is Clint Koch, and I am a first year PhD student at the University of Arizona. My research involves using reflection seismic data to address interesting tectonic problems. I joined this expedition to gain some experience in acquisition and processing of seismic data. I spent the first couple weeks on the … More Seasickness and Sunsets

Seismic Equipment: OBS Part 2 – Deployment!

Howdy! Last couple days have been very very exciting for the science crew. We have started deploying the equipment! At the time of writing, we have finished our first OBS transect (deployed, shot the air guns and collected the OBS) and finished deploying the OBS on the second OBS transect. We are now maneuvering the ship … More Seismic Equipment: OBS Part 2 – Deployment!

We’re here!!!!!!

After what seems like such a long journey, we finally arrived to the study area in the South Atlantic, and began putting instruments in the water on Saturday morning!! We dropped 7 OBS over the side (see earlier post on what an OBS is) and acquired data on them through the night.  Now it is … More We’re here!!!!!!