On Modeling High-Frequency Acoustic Scatter from a Basic Arctic Under-Ice Experiment: The Benchmark Ice-Block Problem
High-frequency underwater acoustic propagation and scattering in the presence of the underside of the Arctic ice canopy have been studied in the last decade. Promising computer simulation models and some good experimental data have resulted from these studies. While presenting a brief overview of th...
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ftdtic:ADA230003 2023-05-15T14:37:42+02:00 On Modeling High-Frequency Acoustic Scatter from a Basic Arctic Under-Ice Experiment: The Benchmark Ice-Block Problem Chin-Bing, Stanley A. Murphy, Joseph E. Keiffer, Richard S. NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS 1990 text/html http://www.dtic.mil/docs/citations/ADA230003 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA230003 en eng http://www.dtic.mil/docs/citations/ADA230003 Approved for public release; distribution is unlimited. Announcement only, no copies furnished by DTIC. DTIC AND NTIS Snow Ice and Permafrost Acoustics *COMPUTERIZED SIMULATION HIGH FREQUENCY EXPERIMENTAL DATA MODELS EDGES FINITE ELEMENT ANALYSIS ACCURACY ICE DIFFRACTION SOUND TRANSMISSION CANOPIES ACOUSTIC SCATTERING UNDERWATER ACOUSTICS ARCTIC REGIONS UNDERICE SCATTERING DD298 ONLY ICE CANOPIES PE61153N WUDN257033 SEA ICE COMPUTERIZED SIMULATION ACOUSTIC WAVES/SCATTERING SEISMIC WAVES Text 1990 ftdtic 2016-02-22T23:27:33Z High-frequency underwater acoustic propagation and scattering in the presence of the underside of the Arctic ice canopy have been studied in the last decade. Promising computer simulation models and some good experimental data have resulted from these studies. While presenting a brief overview of the Arctic modeling achievements, this talk concentrates primarily on the need for more benchmark modeling-experimental efforts. The ice-block reverberation experimental data taken by Francois and Garrison is used as an illustration. Under-ice acoustic scattering models based on various approaches (Kirchhoff, edge diffraction, and finite element) are used to analyze the ice-block data and comparisons of accuracy versus computation effort will be presented. The presentation concludes with the suggestion that a need exists for more Arctic under-ice acoustic benchmark cases. (mm) Text Arctic Ice permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database Arctic |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Acoustics *COMPUTERIZED SIMULATION HIGH FREQUENCY EXPERIMENTAL DATA MODELS EDGES FINITE ELEMENT ANALYSIS ACCURACY ICE DIFFRACTION SOUND TRANSMISSION CANOPIES ACOUSTIC SCATTERING UNDERWATER ACOUSTICS ARCTIC REGIONS UNDERICE SCATTERING DD298 ONLY ICE CANOPIES PE61153N WUDN257033 SEA ICE COMPUTERIZED SIMULATION ACOUSTIC WAVES/SCATTERING SEISMIC WAVES |
spellingShingle |
Snow Ice and Permafrost Acoustics *COMPUTERIZED SIMULATION HIGH FREQUENCY EXPERIMENTAL DATA MODELS EDGES FINITE ELEMENT ANALYSIS ACCURACY ICE DIFFRACTION SOUND TRANSMISSION CANOPIES ACOUSTIC SCATTERING UNDERWATER ACOUSTICS ARCTIC REGIONS UNDERICE SCATTERING DD298 ONLY ICE CANOPIES PE61153N WUDN257033 SEA ICE COMPUTERIZED SIMULATION ACOUSTIC WAVES/SCATTERING SEISMIC WAVES Chin-Bing, Stanley A. Murphy, Joseph E. Keiffer, Richard S. On Modeling High-Frequency Acoustic Scatter from a Basic Arctic Under-Ice Experiment: The Benchmark Ice-Block Problem |
topic_facet |
Snow Ice and Permafrost Acoustics *COMPUTERIZED SIMULATION HIGH FREQUENCY EXPERIMENTAL DATA MODELS EDGES FINITE ELEMENT ANALYSIS ACCURACY ICE DIFFRACTION SOUND TRANSMISSION CANOPIES ACOUSTIC SCATTERING UNDERWATER ACOUSTICS ARCTIC REGIONS UNDERICE SCATTERING DD298 ONLY ICE CANOPIES PE61153N WUDN257033 SEA ICE COMPUTERIZED SIMULATION ACOUSTIC WAVES/SCATTERING SEISMIC WAVES |
description |
High-frequency underwater acoustic propagation and scattering in the presence of the underside of the Arctic ice canopy have been studied in the last decade. Promising computer simulation models and some good experimental data have resulted from these studies. While presenting a brief overview of the Arctic modeling achievements, this talk concentrates primarily on the need for more benchmark modeling-experimental efforts. The ice-block reverberation experimental data taken by Francois and Garrison is used as an illustration. Under-ice acoustic scattering models based on various approaches (Kirchhoff, edge diffraction, and finite element) are used to analyze the ice-block data and comparisons of accuracy versus computation effort will be presented. The presentation concludes with the suggestion that a need exists for more Arctic under-ice acoustic benchmark cases. (mm) |
author2 |
NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS |
format |
Text |
author |
Chin-Bing, Stanley A. Murphy, Joseph E. Keiffer, Richard S. |
author_facet |
Chin-Bing, Stanley A. Murphy, Joseph E. Keiffer, Richard S. |
author_sort |
Chin-Bing, Stanley A. |
title |
On Modeling High-Frequency Acoustic Scatter from a Basic Arctic Under-Ice Experiment: The Benchmark Ice-Block Problem |
title_short |
On Modeling High-Frequency Acoustic Scatter from a Basic Arctic Under-Ice Experiment: The Benchmark Ice-Block Problem |
title_full |
On Modeling High-Frequency Acoustic Scatter from a Basic Arctic Under-Ice Experiment: The Benchmark Ice-Block Problem |
title_fullStr |
On Modeling High-Frequency Acoustic Scatter from a Basic Arctic Under-Ice Experiment: The Benchmark Ice-Block Problem |
title_full_unstemmed |
On Modeling High-Frequency Acoustic Scatter from a Basic Arctic Under-Ice Experiment: The Benchmark Ice-Block Problem |
title_sort |
on modeling high-frequency acoustic scatter from a basic arctic under-ice experiment: the benchmark ice-block problem |
publishDate |
1990 |
url |
http://www.dtic.mil/docs/citations/ADA230003 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA230003 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Sea ice |
genre_facet |
Arctic Ice permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA230003 |
op_rights |
Approved for public release; distribution is unlimited. Announcement only, no copies furnished by DTIC. |
_version_ |
1766309912544018432 |