Environmental correlates of Arctic ice-edge noise
Temporal variations of low-frequency, broadband ambient noise measured in early summer under drifting ice floes of the marginal ice zone (MIZ) are cross correlated with local environmental forces and ice field descriptors. Surface gravity wave forcing is the primary correlate of the noise; its inter...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1078.2773 2023-05-15T14:57:20+02:00 Environmental correlates of Arctic ice-edge noise Nicholasc Makris Ira Dyer The Pennsylvania State University CiteSeerX Archives 1991 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.2773 http://acoustics.mit.edu/faculty/makris/Environmental%20correlates%20of%20Arctic%20ice-edge%20noise.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.2773 http://acoustics.mit.edu/faculty/makris/Environmental%20correlates%20of%20Arctic%20ice-edge%20noise.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://acoustics.mit.edu/faculty/makris/Environmental%20correlates%20of%20Arctic%20ice-edge%20noise.pdf text 1991 ftciteseerx 2020-05-03T00:17:55Z Temporal variations of low-frequency, broadband ambient noise measured in early summer under drifting ice floes of the marginal ice zone (MIZ) are cross correlated with local environmental forces and ice field descriptors. Surface gravity wave forcing is the primary correlate of the noise; its interaction with ice floes generates sound, most likely via flexural floe failure, and unloading motion, within a few kilometers of the ice edge. Ice concentration is also well correlated with the noise, most likely parametrically. That is, as ice concentration increases, so does the density of potential sound sources in the ice field. Ice stress, ice moment, and wind stress magnitude, while highly correlated with low-frequency noise in the fully icecovered Arctic, are poor correlates in the MIZ. Lateral melt rate, as a surrogate for thermally induced ice stress, is also poorly correlated with low-frequency MIZ noise. When surface wave forcing is weak, about 1/2 the time in this experiment, episodes of high noise are sometimes observed. These episodes are roughly 3-6 h in duration and 12 h in periodicity. Evidence suggests that they are related to the formation and advection of bands of highly concentrated ice by internal waves during off-ice winds. Text Arctic Unknown Arctic |
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ftciteseerx |
language |
English |
description |
Temporal variations of low-frequency, broadband ambient noise measured in early summer under drifting ice floes of the marginal ice zone (MIZ) are cross correlated with local environmental forces and ice field descriptors. Surface gravity wave forcing is the primary correlate of the noise; its interaction with ice floes generates sound, most likely via flexural floe failure, and unloading motion, within a few kilometers of the ice edge. Ice concentration is also well correlated with the noise, most likely parametrically. That is, as ice concentration increases, so does the density of potential sound sources in the ice field. Ice stress, ice moment, and wind stress magnitude, while highly correlated with low-frequency noise in the fully icecovered Arctic, are poor correlates in the MIZ. Lateral melt rate, as a surrogate for thermally induced ice stress, is also poorly correlated with low-frequency MIZ noise. When surface wave forcing is weak, about 1/2 the time in this experiment, episodes of high noise are sometimes observed. These episodes are roughly 3-6 h in duration and 12 h in periodicity. Evidence suggests that they are related to the formation and advection of bands of highly concentrated ice by internal waves during off-ice winds. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Nicholasc Makris Ira Dyer |
spellingShingle |
Nicholasc Makris Ira Dyer Environmental correlates of Arctic ice-edge noise |
author_facet |
Nicholasc Makris Ira Dyer |
author_sort |
Nicholasc Makris |
title |
Environmental correlates of Arctic ice-edge noise |
title_short |
Environmental correlates of Arctic ice-edge noise |
title_full |
Environmental correlates of Arctic ice-edge noise |
title_fullStr |
Environmental correlates of Arctic ice-edge noise |
title_full_unstemmed |
Environmental correlates of Arctic ice-edge noise |
title_sort |
environmental correlates of arctic ice-edge noise |
publishDate |
1991 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.2773 http://acoustics.mit.edu/faculty/makris/Environmental%20correlates%20of%20Arctic%20ice-edge%20noise.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
http://acoustics.mit.edu/faculty/makris/Environmental%20correlates%20of%20Arctic%20ice-edge%20noise.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.2773 http://acoustics.mit.edu/faculty/makris/Environmental%20correlates%20of%20Arctic%20ice-edge%20noise.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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