From January 21 - March 2, Lauren Roche from the PMEL Acoustics Program will be aboard the R/V Araon deploying six hydrophones (shown in the image below in the Ross Sea, Antarctica. The objective of this research cruise is to use various land- and ship-based research methods to gain a thorough understanding of the Terra Nova Bay region. The PMEL Acoustics Program has been collaborating with the Korea Polar Research Institute (KOPRI) for several years on multiple projects in Antarctica. On this research cruise, Lauren will be replacing a hydrophone triad near the Drygalski Ice Tongue that was deployed last year as well as deploying a second triad in a new location further north. The data collected from these deployments will allow the Acoustics program to characterize the soundscape of the Terra Nova Bay polynya.
On February 8, Lauren successfully recovered hydrophones that likely recorded the Nansen glacier calving event. Read more about the event and the Nansen ice shelf here: http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/Sentinel-1/Nansen_gives_birth_to_two_icebergs
Lauren Roche is a new mooring technician with PMEL Acoustics Program through Oregon State University’s Cooperative Institute for Marine Resources Studies (CIMRS). Her background is in bioacoustics and fisheries and will be deploying, recovering, and building the hydrophones for the group. Learn more about the acoustics program here.
PMEL in the News
Voodoo may not be the hottest place, but it's a bustling paradise for countless marine creatures. "Imagine a vast deep-sea desert, where there is not enough food or energy to survive. It's cold and inhospitable," said David Butterfield, a principal research scientist of oceanography at the Joint...
As the Arctic slipped into the half-darkness of autumn last year, it seemed to enter the Twilight Zone. In the span of a few months, all manner of strange things happened. The cap of sea ice covering the Arctic Ocean started to shrink when it should have been growing. Temperatures at the North...
The lowland snows are back. Temperatures have dropped. After three unusually warm winters, does the current winter's cold mark a return to a "normal" winter for western Washington? "It's not just normal, it's below normal," said Washington state Climatologist Nick Bond.
Axial Seamount, 300 miles off the coast of Oregon and 0.7 miles beneath the ocean’s surface, is situated along a mid-ocean ridge where two ocean plates are moving apart. It is the most active submarine volcano in the northeast Pacific Ocean, with documented eruptions in 1998, 2011, and most recently, in 2015. Its activity has been monitored for two decades, since the establishment of the NeMO Seafloor Observatory in 1996, and more recently the launch of the National Science Foundation’s... more