Anyone watch Star Trek? Remember the people that were always tirelessly working and performing miracles in the engine room to ensure the Enterprise wasn’t lost? It’s sort of like that on board the R/V Langseth as well. This expedition would all be for naught if the ship did not stop and go as needed. The … More Looking under the hood
Hello Readers. My name is Dan Kot and I am an ocean bottom seismometer (OBS) technician with Woods Hole Oceanographic. For those of you that are new to the world of oceanography, I thought I would touch upon how we withstand the pressure at the bottom of the ocean. There are a number of ways … More Withstanding the Pressure
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!
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
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
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!
Howdy! My name is Akhil Amara. I am a masters student studying geophysics at Texas A&M. My goal will be to help you understand the equipment that will be used for part of our research expedition. Due to the extended transit time to location of the survey, it has allowed the science party, especially the … More Seismic Equipment: OBS Part 1