Development of a Low Frequency Ambient Noise Storm Model for the Arctic Ocean.
The development of an ambient noise model for use in ice-covered Arctic waters is the primary goal of this research. The generation of ambient noise is considered to originate from large scale deformation of the ice cover (pressure ridge formation) which is caused on a synoptic scale by convergence...
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ftdtic:ADA325452 2023-05-15T14:29:17+02:00 Development of a Low Frequency Ambient Noise Storm Model for the Arctic Ocean. Collins, David A. NAVAL POSTGRADUATE SCHOOL MONTEREY CA 1996-12 text/html http://www.dtic.mil/docs/citations/ADA325452 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA325452 en eng http://www.dtic.mil/docs/citations/ADA325452 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Physical and Dynamic Oceanography Acoustics *AMBIENT NOISE *ARCTIC OCEAN DATA BASES MATHEMATICAL MODELS OCEAN SURFACE DEFORMATION THESES ICE MECHANICS ICE FORMATION STORMS ACOUSTIC MEASUREMENT WIND VELOCITY UNDERWATER ACOUSTICS ACOUSTIC DATA LOW FREQUENCY WIND STRESS OCEAN BASINS SEA ICE PACK ICE ACOUSTIC MODELS ASNM(ARCTIC STORM NOISE MODEL) Text 1996 ftdtic 2016-02-19T20:13:15Z The development of an ambient noise model for use in ice-covered Arctic waters is the primary goal of this research. The generation of ambient noise is considered to originate from large scale deformation of the ice cover (pressure ridge formation) which is caused on a synoptic scale by convergence of the ice cover due to wind stress/speed associated with the passage of Arctic storms. The Arctic Storm Noise Model (ASNM) has been developed as a dynamic model to predict the occurrence of extreme noise events. The emphasis is on accurately predicting the large increases or decreases in ambient noise, which observations have shown to be in the order of 20 to 30 dB over a matter of hours. ASNM was adapted from the Ambient Noise Directional Estimation System (ANDES) for use under the Arctic pack ice. ASNM predictions are compared quantitatively to noise measurements made by ice-mounted drifting buoys in the Arctic basin during the early 1990's. Results showed that for extreme events (<5th or >95th percentile) ASNM is accurate in predicting both the level of ambient noise and the large increases in the noise record. Due to the encouraging results further improvements are recommended to increase the robustness of the model for potential tactical use by submarine units operating under the Arctic pack ice. Original contains color plates: All DTIC reproductions will be in black and white. Text Arctic Basin Arctic Arctic Ocean ice pack Sea ice Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Physical and Dynamic Oceanography Acoustics *AMBIENT NOISE *ARCTIC OCEAN DATA BASES MATHEMATICAL MODELS OCEAN SURFACE DEFORMATION THESES ICE MECHANICS ICE FORMATION STORMS ACOUSTIC MEASUREMENT WIND VELOCITY UNDERWATER ACOUSTICS ACOUSTIC DATA LOW FREQUENCY WIND STRESS OCEAN BASINS SEA ICE PACK ICE ACOUSTIC MODELS ASNM(ARCTIC STORM NOISE MODEL) |
spellingShingle |
Physical and Dynamic Oceanography Acoustics *AMBIENT NOISE *ARCTIC OCEAN DATA BASES MATHEMATICAL MODELS OCEAN SURFACE DEFORMATION THESES ICE MECHANICS ICE FORMATION STORMS ACOUSTIC MEASUREMENT WIND VELOCITY UNDERWATER ACOUSTICS ACOUSTIC DATA LOW FREQUENCY WIND STRESS OCEAN BASINS SEA ICE PACK ICE ACOUSTIC MODELS ASNM(ARCTIC STORM NOISE MODEL) Collins, David A. Development of a Low Frequency Ambient Noise Storm Model for the Arctic Ocean. |
topic_facet |
Physical and Dynamic Oceanography Acoustics *AMBIENT NOISE *ARCTIC OCEAN DATA BASES MATHEMATICAL MODELS OCEAN SURFACE DEFORMATION THESES ICE MECHANICS ICE FORMATION STORMS ACOUSTIC MEASUREMENT WIND VELOCITY UNDERWATER ACOUSTICS ACOUSTIC DATA LOW FREQUENCY WIND STRESS OCEAN BASINS SEA ICE PACK ICE ACOUSTIC MODELS ASNM(ARCTIC STORM NOISE MODEL) |
description |
The development of an ambient noise model for use in ice-covered Arctic waters is the primary goal of this research. The generation of ambient noise is considered to originate from large scale deformation of the ice cover (pressure ridge formation) which is caused on a synoptic scale by convergence of the ice cover due to wind stress/speed associated with the passage of Arctic storms. The Arctic Storm Noise Model (ASNM) has been developed as a dynamic model to predict the occurrence of extreme noise events. The emphasis is on accurately predicting the large increases or decreases in ambient noise, which observations have shown to be in the order of 20 to 30 dB over a matter of hours. ASNM was adapted from the Ambient Noise Directional Estimation System (ANDES) for use under the Arctic pack ice. ASNM predictions are compared quantitatively to noise measurements made by ice-mounted drifting buoys in the Arctic basin during the early 1990's. Results showed that for extreme events (<5th or >95th percentile) ASNM is accurate in predicting both the level of ambient noise and the large increases in the noise record. Due to the encouraging results further improvements are recommended to increase the robustness of the model for potential tactical use by submarine units operating under the Arctic pack ice. Original contains color plates: All DTIC reproductions will be in black and white. |
author2 |
NAVAL POSTGRADUATE SCHOOL MONTEREY CA |
format |
Text |
author |
Collins, David A. |
author_facet |
Collins, David A. |
author_sort |
Collins, David A. |
title |
Development of a Low Frequency Ambient Noise Storm Model for the Arctic Ocean. |
title_short |
Development of a Low Frequency Ambient Noise Storm Model for the Arctic Ocean. |
title_full |
Development of a Low Frequency Ambient Noise Storm Model for the Arctic Ocean. |
title_fullStr |
Development of a Low Frequency Ambient Noise Storm Model for the Arctic Ocean. |
title_full_unstemmed |
Development of a Low Frequency Ambient Noise Storm Model for the Arctic Ocean. |
title_sort |
development of a low frequency ambient noise storm model for the arctic ocean. |
publishDate |
1996 |
url |
http://www.dtic.mil/docs/citations/ADA325452 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA325452 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Basin Arctic Arctic Ocean ice pack Sea ice |
genre_facet |
Arctic Basin Arctic Arctic Ocean ice pack Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA325452 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766303344872128512 |