Hawaiian-Emperor Seamount Seismic Experiment

Example of data recorded on seismic streamer after one pulse  from  the seismic  sound source. This image  shows  a sound  waves  that  have bounced  off of the  seafloor  and  underlying  l ayers. After processing, it can be used to create a  picture of  geology under the seafloor. Ever since we finished rolling out the 15-km (~10 mile) seismic streamer and seismic sound source, the seismic data have been rolling in.   Each time we emit a pulse of sound waves from our seismic source, we acquire recordings of seismic energy that have traveled into the earth, bounced off of rock layers below the seafloor, and returned to the sea surface.   The Langseth ’s seismic streamer has 1200 channels that record returning sound waves at a sample rate of only 2 milliseconds for 26 seconds – enough time for seismic energy that has traveled deep into the earth to return to the sea surface and be recorded by the seismic streamer before generating a new pulse of sound waves.

Marcus G. Langseth  Ping Pong Tournament Tournament Start This 26 th  of September, the third week of the Hawaiian-Emperor Seamount Seismic Experiment, marks the opening of the Marcus G. Langseth Ping-Pong Tournament and what a fantastic day to play Ping-Pong.  Well the exciting sport of Ping-Pong is traditionally played in sports bars, local taverns, or the Olympics, this tournament has taken the sport to the next level as our competitors attempt to play in high seas. The tournament is being held aboard Marcus G. Langseth R/V. Well there may be an active seismic study in progress, the crew of the Langseth have been preparing for weeks to host this tournament. Ping-Pong at sea is no laughing matter. The cramped rooms and the roll of the ship creates a high variability to each game. The shifting of the floor leaves the player to manage their unstable weight and attempt to play the ball’s variable trajectories. Well Ping-Pong is not a dangerous sport t