File:A comparison of ice drift motion from modeled and buoy data (IA acomparisonofice1094527628).pdf
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Summary[edit]
A comparison of ice drift motion from modeled and buoy data ( ) | |
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Author |
Lundeen, Gregory N. |
Title |
A comparison of ice drift motion from modeled and buoy data |
Publisher |
Monterey, California: Naval Postgraduate School |
Description |
U.S. Naval operations in the Arctic require an effective way to predict the movement and behavior of sea ice. This is currently provided by the Navy's PIPS model which is based on Hibler's (1979) sea ice model which combines the thermodynamic ice heat budget with a dynamic ice model sensitive to the effects of ice thickness and ice strength. The PIPS model simultaneously solves a system of four equations of ice momentum balance, ice rheology, ice thickness, and ice strength. In order to test the performance of Hibler's formulation, another version of it, developed by Lemke et al., (1990), was adapted to the Arctic Ocean. The model was initialized and run using 1986 forcing data and its performance evaluated using Arctic buoy drift data. Results indicate that the model ice drift is principally driven by wind forcing, that its response to changes in weather is rapid and essentially correct, and that it performs better at high wind speeds than at low wind speeds. Limitations to its accuracy were chiefly the result of limits to the precision and resolution of the input data provided to run the model, especially near the ice margins. Overall, the model performs well in depicting the ice flow pattern in all conditions in the Arctic. Subjects: Buoys; Sea ice.; PIPS; Sea Ice; Arctic Buoys; Ice Forecast; Arctic |
Language | English |
Publication date |
December 1990 publication_date QS:P577,+1990-12-00T00:00:00Z/10 |
Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
Accession number |
acomparisonofice1094527628 |
Source | |
Permission (Reusing this file) |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted. |
Licensing[edit]
Public domainPublic domainfalsefalse |
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.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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current | 06:48, 8 July 2020 | 1,275 × 1,650, 124 pages (4.79 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection acomparisonofice1094527628 (User talk:Fæ/IA books#Fork8) (batch 1990-1992 #2804) |
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Short title | A comparison of ice drift motion from modeled and buoy data |
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Author | Lundeen, Gregory N. |
File change date and time | 07:47, 23 January 2012 |
Date and time of digitizing | 07:47, 23 January 2012 |
Date metadata was last modified | 07:47, 23 January 2012 |
Software used | Lundeen, Gregory N. |
Conversion program | |
Encrypted | no |
Page size |
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Version of PDF format | 1.4 |