Gail was fortunate enough to have a very special birthday fall in the middle of our expedition. The science party worked very hard to make her birthday a memorable event! We wanted to throw a surprise party with a few of Gail’s favorite things, so she had a Star Trek/cat party! The decorations were … More Birthday at sea!
Once a week the ship will have some type of emergency drill, such as man overboard or abandon ship. Some weeks only the crew is involved (perhaps practicing what to do if there is a fire in the engine room), and other weeks it is ‘all hands’. The first week we had a drill where … More Survival Suit Challenge!
How do we know how fast the pressure waves move through the water? Well one way that we can figure that out is by deploying an expendable bathythermograph, or XBT, to measure the temperature of the water as it falls down through the water column. The probe comes in a long cylindrical canister that we … More Taking The Ocean’s Temperature!
We are now about half way through our expedition. We are closing in on four weeks out at sea and have just under four weeks remaining before we return to terra firma. We recently reached the western-most point in our journey and turned around to return east across the study area. Now it’s time to switch gears in … More Multi-Channel Seismic and the Half-Way Mark!
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
In honor of finishing the OBS portion of the expedition, I will talk about how we go about recovering the OBS instruments. This has been my favorite as well as the most stressful aspect of the OBS process. Even though there were some issues, we were able to recover all of the OBS we deployed!!! I … More Seismic Equipment: OBS Part 3-Recovery
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
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
Alexis here- Like most research cruises, ours is a 24-hour operation. So whether it’s day or night on the Langseth, there’s always work being done. The ship’s crew maintains a 24-hour schedule to keep operations moving, whether it’s upkeep on deck or in the engine room ensuring things are running smoothly. The Captain and his … More Science waits for no one!
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