File:Identification of acoustically active Arctic pressure ridges through the use of RADARSAT Geophysical Processor System (RGPS) sea ice products (IA identificationof00spec).pdf

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Original file ‎(1,252 × 1,639 pixels, file size: 23.41 MB, MIME type: application/pdf, 344 pages)

Summary

Identification of acoustically active Arctic pressure ridges through the use of RADARSAT Geophysical Processor System (RGPS) sea ice products   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
Speckhahn, Marcus M.
image of artwork listed in title parameter on this page
Title
Identification of acoustically active Arctic pressure ridges through the use of RADARSAT Geophysical Processor System (RGPS) sea ice products
Publisher
Monterey, California: Naval Postgraduate School;Springfield, Va.: Available from National Technical Information Service
Description
"June 1998."
Thesis advisor(s): Robert H. Bourke, James H. Wilson
Thesis (M.S. in Meteorology and Physical Oceanography) Naval Postgraduate School, June 1998
Includes bibliographical references (p. 301-304)
The identification of acoustically active pressure ridges in the Arctic Ocean represents an important step in the development of a physics based, operational Polar ambient noise model. One method to accomplish this goal is through the use of satellite based remote sensors, specifically synthetic aperture radar (SAR). A proof of concept study was conducted that determined that the RADARSAT Geophysical Processor System (RGPS) produces SAR derived sea ice products capable of quantifying large scale ice deformation that may produce significant levels of low frequency ambient noise. This research also identifies the meteorological forcing that causes the sequence of divergent and convergent events in the ice cover, which results in the creation of open water leads and subsequent generation of noisy pressure ridges. Offshore followed by onshore winds near coasts and land fast ice and atmospheric lows/troughs followed by atmospheric highs/ridges or velocity shear in straight isobaric flow result in significant pressure ridge formation. The RGPS ridging algorithm shows that more ridges exist in RGPS cells exhibiting large cell area changes than in those with small area changes, assuming relatively constant cell heights in all cells. The feasibility of using ice divergence fields generated by Fleet Numerical Meteorology and Oceanography Center's (FNMOC's) Polar Ice Prediction System (PIPS) was evaluated. PIPS modeled ice divergence patterns reasonably well, although divergence values in the high Arctic ice cover were underestimated
Mode of access: World Wide Web
System requirements: Adobe Acrobat reader
US Navy (USN) author
dk/dk cc:9116 10/06/98

Subjects:
Language English
Publication date 1 June 1998
publication_date QS:P577,+1998-06-01T00:00:00Z/11
Current location
IA Collections: navalpostgraduateschoollibrary; fedlink; americana
Accession number
identificationof00spec
Notes tight gutters throughout the book.
Authority file  OCLC: 1046599097
Source
Internet Archive identifier: identificationof00spec
https://archive.org/download/identificationof00spec/identificationof00spec.pdf

Licensing

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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current21:19, 21 July 2020Thumbnail for version as of 21:19, 21 July 20201,252 × 1,639, 344 pages (23.41 MB)FæFEDLINK - United States Federal Collection identificationof00spec (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #18096)
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