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Creator:: Bohnenstiehl, DelWayne R., Scheip, Corey M., Matsumoto, Haru, and Dziak, Robert P.
Abstract:: During January–February 2009, an active-source seismic survey was performed over the Eastern Lau Spreading Center in the Lau Back-Arc Basin (21°S, 176°S). Acoustic signals generated by the R/V Langseth's 36-gun pneumatic source array were recorded within the deep sound channel at offsets of 29–416 km. The local ocean acoustic environment...
Resource Type:: Article
Full Text:: intermediate ranges within the Lau Basin DelWayne R. Bohnenstiehl and Corey M. Scheip Department of Marine

Creator:: Dziak, Robert P., Bohnenstiehl, DelWayne R., Stafford, Kathleen M., Matsumoto, Haruyoshi, Park, Minkyu, Lee, Won Sang, Fowler, Matt J., Lau, Tai-Kwan, Haxel, Joseph H., and Mellinger, David K.
Abstract:: Arrays of hydrophones were deployed within the Bransfield Strait and Scotia Sea (Antarctic Peninsula region) from 2005 to 2009 to record ambient ocean sound at frequencies of up to 125 and 500 Hz. Icequakes, which are broadband, short duration signals derived from fracturing of large free-floating icebergs, are a prominent...
Resource Type:: Article
Full Text:: Peninsula Dziak, R. P., Bohnenstiehl, D. R., Stafford, K. M., Matsumoto, H., Park, M., Lee, W. S

Creator:: Klinck, Holger, Nieukirk, Sharon L., Mellinger, David K., Klinck, Karolin, Matsumoto, Haruyoshi, and Dziak, Robert P.
Abstract:: In 2009 two calibrated acoustic recorders were deployed in polar waters of the North Atlantic to study the seasonal occurrence of blue, fin, and sperm whales and to assess current ambient noise levels. Sounds from these cetaceans were recorded at both locations in most months of the year. During the...
Resource Type:: Article
Full Text:: ., Howe, B. M., Mercer, J. A., and Dzieciuch, M. A. (2002). “Ocean ambient sound: Comparing the 1960s

Creator:: Nieukirk, Sharon L., Mellinger, David K., Moore, Sue E., Klinck, Karolin, Dziak, Robert P., and Goslin, Jean
Abstract:: Between 1999 and 2009, autonomous hydrophones were deployed to monitor seismic activity from 16° N to 50° N along the Mid-Atlantic Ridge. These data were examined for airgun sounds produced during offshore surveys for oil and gas deposits, as well as the 20 Hz pulse sounds from fin whales, which may...
Resource Type:: Article
Full Text:: . This is PMEL contribution #3515. Andrew, R. K., Howe, B. M., and Mercer, J. A. (2001). “Ocean ambient

Creator:: Matsumoto, Haru, Bohnenstiehl, DelWayne R., Tournadre, Jean, Dziak, Robert P., Haxel, Joseph H., Lau, T. -K. A., Fowler, Matt, and Salo, Sigrid A.
Abstract:: In late 2007, two massive icebergs, C19a and B15a, drifted into open water and slowly disintegrated in the southernmost Pacific Ocean. Archived acoustic records show that the high-intensity underwater sounds accompanying this breakup increased ocean noise levels at mid-to-equatorial latitudes over a period of ~1.5 years. More typically, seasonal variations...
Resource Type:: Article
Full Text:: marine ecosystems. References Andrew, R. K., B. M. Howe, and J. A. Mercer (2011), Long-time trends in

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