Passive acoustic records of seafloor methane bubble streams on the Oregon continental margin

Dziak, R.P.; Matsumoto, H.; Embley, R.W.; Merle, S.G.; Lau, T.-K.; Baumberger, T.; Hammond, S.R.; Raineault, N.

doi:10.1016/j.dsr2.2018.04.001

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

i

Passive acoustic records of seafloor methane bubble streams on the Oregon continental margin

2018
By Dziak, R.P. ; Matsumoto, H. ; Embley, R.W. ; ...
Source: Deep Sea Research Part II: Topical Studies in Oceanography, 150: 1-21
Series: NOAA/PMEL contribution no. 4639

[PDF-1.13 MB]

Details You May Also Like

Details:

Journal Title:

Deep Sea Research Part II: Topical Studies in Oceanography
Personal Author:

Dziak, R.P. ; Matsumoto, H. ; Embley, R.W. ; Merle, S.G. ; Lau, T.-K. ; ... More +

Dziak, R.P. ; Matsumoto, H. ; Embley, R.W. ; Merle, S.G. ; Lau, T.-K. ; Baumberger, T. ; Hammond, S.R. ; Raineault, N. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) ; Ocean Exploration Program ; CIMRS (Cooperative Institute for Marine Resources Studies)

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) ; Ocean Exploration Program ; CIMRS (Cooperative Institute for Marine Resources Studies) Less -
Description:

We present acoustic records of methane bubble streams recorded ~10 km southwest of Heceta Bank on the Oregon continental margin using an autonomous hydrophone. The hydrophone was deployed at 1228 m water depth via a Remotely Operated Vehicle (ROV) during the E/V Nautilus expedition (NA072) in June 2016. Bubble sound is produced by detachment of the gas bubble from the end of a tube or conduit which causes the bubble to oscillate, producing a sound signal. Despite persistent ship propeller and ROV noise, the acoustic signature of the overall bubble seep site can be seen in the hydrophone record as a broadband (1.0 – 45 kHz) series of short duration (~10–20 ms) oscillatory signals that occur in clusters lasting 2–3 s. The frequency of an individual bubble’s oscillation is proportional to the bubble’s radius; estimates here of bubble radii are consistent with bubble sizes observed in ROV still images. Acoustic signal loss models imply bubble sounds might be recorded over an area of seafloor from ~300 – 3.2 × 104 m2. This study represents a first-step in attempting to identify and quantify deep-ocean bubble stream sounds using passive acoustic techniques.
Keywords:

[+]

OET (Ocean Exploration Trust) Passive Acoustics, Methane Seep, Bubble Streams, Gas Flux, E/V Nautilus Cruise ID NA072
Source:

Deep Sea Research Part II: Topical Studies in Oceanography, 150: 1-21
Series:

NOAA/PMEL contribution no. 4639
DOI:

https://doi.org/10.1016/j.dsr2.2018.04.001
Document Type:

Journal Article
Funding:

Grant no. NA17NOS4290190
Place as Subject:

Oregon ; North Pacific Ocean

Oregon ; North Pacific Ocean Less -
Rights Information:

Accepted Manuscript
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:a6f1ade97968f4281cb5a8690e7a6d0b3be03462333df7b8e7768997a3a7e012
Download URL:

https://repository.library.noaa.gov/view/noaa/31449/noaa_31449_DS1.pdf
File Type:

No Additional Files

More +

Passive acoustic records of seafloor methane bubble streams on the Oregon continental margin

Details:

Supporting Files

You May Also Like