Ice Statistics and Acoustic Scattering in the Arctic Basin.
Acoustic propagation in the Arctic is intimately related to the structure of surface pack ice. In this paper, reflection loss and transmission loss are calculated based upon statistical models of ice roughness. Statistical models of ice ridges are introduced and techniques for estimating the roughne...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
1984
|
Subjects: | |
Online Access: | http://www.dtic.mil/docs/citations/ADA150141 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA150141 |
id |
ftdtic:ADA150141 |
---|---|
record_format |
openpolar |
spelling |
ftdtic:ADA150141 2023-05-15T14:29:12+02:00 Ice Statistics and Acoustic Scattering in the Arctic Basin. Greene,R R SCIENCE APPLICATIONS INTERNATIONAL CORP MCLEAN VA 1984-10-01 text/html http://www.dtic.mil/docs/citations/ADA150141 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA150141 en eng http://www.dtic.mil/docs/citations/ADA150141 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Acoustics *TRANSMISSION LOSS SURFACE ROUGHNESS ICE SOUND TRANSMISSION PARABOLAS STATISTICAL ANALYSIS EQUATIONS ACOUSTIC SCATTERING ARCTIC REGIONS HIGH ANGLES ACOUSTIC REFLECTION RIDGES ARCTIC OCEAN PACK ICE UNDERICE ARCHAPE(Arctic High Angle Parabolic Equations) Parabolic equations Text 1984 ftdtic 2016-02-20T23:45:54Z Acoustic propagation in the Arctic is intimately related to the structure of surface pack ice. In this paper, reflection loss and transmission loss are calculated based upon statistical models of ice roughness. Statistical models of ice ridges are introduced and techniques for estimating the roughness spectrum of ridged surfaces are developed. Next, a model for estimating the mean reflection loss is introduced. The reflection loss formulas are based on the statistical models for roughness. Transmission loss calculations using High-Angle parabolic equation (ARCHAPE) in a simulated Arctic environment are compared with data. The results demonstrate that rough surface scattering from random-depth ice keel structures can account for the observed rate of transmission loss in the Arctic. Keywords include: Acoustic Scattering, and Propagation loss. Text Arctic Basin Arctic Arctic Ocean Ice permafrost 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 |
Snow Ice and Permafrost Acoustics *TRANSMISSION LOSS SURFACE ROUGHNESS ICE SOUND TRANSMISSION PARABOLAS STATISTICAL ANALYSIS EQUATIONS ACOUSTIC SCATTERING ARCTIC REGIONS HIGH ANGLES ACOUSTIC REFLECTION RIDGES ARCTIC OCEAN PACK ICE UNDERICE ARCHAPE(Arctic High Angle Parabolic Equations) Parabolic equations |
spellingShingle |
Snow Ice and Permafrost Acoustics *TRANSMISSION LOSS SURFACE ROUGHNESS ICE SOUND TRANSMISSION PARABOLAS STATISTICAL ANALYSIS EQUATIONS ACOUSTIC SCATTERING ARCTIC REGIONS HIGH ANGLES ACOUSTIC REFLECTION RIDGES ARCTIC OCEAN PACK ICE UNDERICE ARCHAPE(Arctic High Angle Parabolic Equations) Parabolic equations Greene,R R Ice Statistics and Acoustic Scattering in the Arctic Basin. |
topic_facet |
Snow Ice and Permafrost Acoustics *TRANSMISSION LOSS SURFACE ROUGHNESS ICE SOUND TRANSMISSION PARABOLAS STATISTICAL ANALYSIS EQUATIONS ACOUSTIC SCATTERING ARCTIC REGIONS HIGH ANGLES ACOUSTIC REFLECTION RIDGES ARCTIC OCEAN PACK ICE UNDERICE ARCHAPE(Arctic High Angle Parabolic Equations) Parabolic equations |
description |
Acoustic propagation in the Arctic is intimately related to the structure of surface pack ice. In this paper, reflection loss and transmission loss are calculated based upon statistical models of ice roughness. Statistical models of ice ridges are introduced and techniques for estimating the roughness spectrum of ridged surfaces are developed. Next, a model for estimating the mean reflection loss is introduced. The reflection loss formulas are based on the statistical models for roughness. Transmission loss calculations using High-Angle parabolic equation (ARCHAPE) in a simulated Arctic environment are compared with data. The results demonstrate that rough surface scattering from random-depth ice keel structures can account for the observed rate of transmission loss in the Arctic. Keywords include: Acoustic Scattering, and Propagation loss. |
author2 |
SCIENCE APPLICATIONS INTERNATIONAL CORP MCLEAN VA |
format |
Text |
author |
Greene,R R |
author_facet |
Greene,R R |
author_sort |
Greene,R R |
title |
Ice Statistics and Acoustic Scattering in the Arctic Basin. |
title_short |
Ice Statistics and Acoustic Scattering in the Arctic Basin. |
title_full |
Ice Statistics and Acoustic Scattering in the Arctic Basin. |
title_fullStr |
Ice Statistics and Acoustic Scattering in the Arctic Basin. |
title_full_unstemmed |
Ice Statistics and Acoustic Scattering in the Arctic Basin. |
title_sort |
ice statistics and acoustic scattering in the arctic basin. |
publishDate |
1984 |
url |
http://www.dtic.mil/docs/citations/ADA150141 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA150141 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Basin Arctic Arctic Ocean Ice permafrost |
genre_facet |
Arctic Basin Arctic Arctic Ocean Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA150141 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766303271537868800 |