Toward Quantifying the Impact of Atmospheric Forcing on Arctic Sea Ice Variability Using the NPS 1/12 Degree Pan-Arctic Coupled Ice-Ocean Model

The rapid Arctic sea ice decline since the 1970s has propelled the United States into a state of urgency for updating its defense plan as Arctic and non-Arctic nations alike are taking an interest in the newfound natural resources of an ice-declining Arctic. In line with the National Security Presid...

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Main Author: Tseng, Hsien-Liang R.
Other Authors: NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Format: Text
Language:English
Published: 2010
Subjects:
Online Access:http://www.dtic.mil/docs/citations/ADA518687
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA518687
id ftdtic:ADA518687
record_format openpolar
spelling ftdtic:ADA518687 2023-05-15T14:33:14+02:00 Toward Quantifying the Impact of Atmospheric Forcing on Arctic Sea Ice Variability Using the NPS 1/12 Degree Pan-Arctic Coupled Ice-Ocean Model Tseng, Hsien-Liang R. NAVAL POSTGRADUATE SCHOOL MONTEREY CA 2010-03 text/html http://www.dtic.mil/docs/citations/ADA518687 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA518687 en eng http://www.dtic.mil/docs/citations/ADA518687 Approved for public release; distribution is unlimited. DTIC Meteorology Physical and Dynamic Oceanography *ARCTIC OCEAN *SEA ICE UNITED STATES DEFENSE SYSTEMS MODELS PARAMETERS NATURAL RESOURCES WIND ATMOSPHERIC TEMPERATURE COOLING VARIATIONS COVARIANCE SURFACE TEMPERATURE ARCTIC REGIONS ANOMALIES STRESSES OUTPUT Text 2010 ftdtic 2016-02-23T00:35:39Z The rapid Arctic sea ice decline since the 1970s has propelled the United States into a state of urgency for updating its defense plan as Arctic and non-Arctic nations alike are taking an interest in the newfound natural resources of an ice-declining Arctic. In line with the National Security Presidential Directive-66, we quantify the amount of anomalous sea ice variability (aSIV) that anomalous atmospheric forcing parameters explain using partial covariance analysis. A one-system approach where the NPS Model sea ice parameters are the direct output of the atmospheric forcing parameters input is employed. Atmospheric forcing fields of 2-m temperature, downward shortwave and longwave fluxes, 10-m zonal and meridional winds and stresses, are from the European Centre for Medium-Range Weather Forecasts Reanalysis-15 and Operational Products. Locations of interest are the Central Arctic seas, and locations along the Northwest Passage (NWP) and the Northern Sea Route (NSR). Results show that the atmospheric parameter having the largest influence on aSIV is anomalous surface air temperature. This occurs during the cooling months and averages 4-39% of aSAT contribution to aSIV in the Central Arctic, 9-16% along the NWP, and 11-25% along the NSR. Results also suggest that atmospheric forcing alone does not explain all of aSIV. The original document contains color images. Text Arctic Arctic Ocean Northern Sea Route Northwest passage Sea ice Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean Northwest Passage
institution Open Polar
collection Defense Technical Information Center: DTIC Technical Reports database
op_collection_id ftdtic
language English
topic Meteorology
Physical and Dynamic Oceanography
*ARCTIC OCEAN
*SEA ICE
UNITED STATES
DEFENSE SYSTEMS
MODELS
PARAMETERS
NATURAL RESOURCES
WIND
ATMOSPHERIC TEMPERATURE
COOLING
VARIATIONS
COVARIANCE
SURFACE TEMPERATURE
ARCTIC REGIONS
ANOMALIES
STRESSES
OUTPUT
spellingShingle Meteorology
Physical and Dynamic Oceanography
*ARCTIC OCEAN
*SEA ICE
UNITED STATES
DEFENSE SYSTEMS
MODELS
PARAMETERS
NATURAL RESOURCES
WIND
ATMOSPHERIC TEMPERATURE
COOLING
VARIATIONS
COVARIANCE
SURFACE TEMPERATURE
ARCTIC REGIONS
ANOMALIES
STRESSES
OUTPUT
Tseng, Hsien-Liang R.
Toward Quantifying the Impact of Atmospheric Forcing on Arctic Sea Ice Variability Using the NPS 1/12 Degree Pan-Arctic Coupled Ice-Ocean Model
topic_facet Meteorology
Physical and Dynamic Oceanography
*ARCTIC OCEAN
*SEA ICE
UNITED STATES
DEFENSE SYSTEMS
MODELS
PARAMETERS
NATURAL RESOURCES
WIND
ATMOSPHERIC TEMPERATURE
COOLING
VARIATIONS
COVARIANCE
SURFACE TEMPERATURE
ARCTIC REGIONS
ANOMALIES
STRESSES
OUTPUT
description The rapid Arctic sea ice decline since the 1970s has propelled the United States into a state of urgency for updating its defense plan as Arctic and non-Arctic nations alike are taking an interest in the newfound natural resources of an ice-declining Arctic. In line with the National Security Presidential Directive-66, we quantify the amount of anomalous sea ice variability (aSIV) that anomalous atmospheric forcing parameters explain using partial covariance analysis. A one-system approach where the NPS Model sea ice parameters are the direct output of the atmospheric forcing parameters input is employed. Atmospheric forcing fields of 2-m temperature, downward shortwave and longwave fluxes, 10-m zonal and meridional winds and stresses, are from the European Centre for Medium-Range Weather Forecasts Reanalysis-15 and Operational Products. Locations of interest are the Central Arctic seas, and locations along the Northwest Passage (NWP) and the Northern Sea Route (NSR). Results show that the atmospheric parameter having the largest influence on aSIV is anomalous surface air temperature. This occurs during the cooling months and averages 4-39% of aSAT contribution to aSIV in the Central Arctic, 9-16% along the NWP, and 11-25% along the NSR. Results also suggest that atmospheric forcing alone does not explain all of aSIV. The original document contains color images.
author2 NAVAL POSTGRADUATE SCHOOL MONTEREY CA
format Text
author Tseng, Hsien-Liang R.
author_facet Tseng, Hsien-Liang R.
author_sort Tseng, Hsien-Liang R.
title Toward Quantifying the Impact of Atmospheric Forcing on Arctic Sea Ice Variability Using the NPS 1/12 Degree Pan-Arctic Coupled Ice-Ocean Model
title_short Toward Quantifying the Impact of Atmospheric Forcing on Arctic Sea Ice Variability Using the NPS 1/12 Degree Pan-Arctic Coupled Ice-Ocean Model
title_full Toward Quantifying the Impact of Atmospheric Forcing on Arctic Sea Ice Variability Using the NPS 1/12 Degree Pan-Arctic Coupled Ice-Ocean Model
title_fullStr Toward Quantifying the Impact of Atmospheric Forcing on Arctic Sea Ice Variability Using the NPS 1/12 Degree Pan-Arctic Coupled Ice-Ocean Model
title_full_unstemmed Toward Quantifying the Impact of Atmospheric Forcing on Arctic Sea Ice Variability Using the NPS 1/12 Degree Pan-Arctic Coupled Ice-Ocean Model
title_sort toward quantifying the impact of atmospheric forcing on arctic sea ice variability using the nps 1/12 degree pan-arctic coupled ice-ocean model
publishDate 2010
url http://www.dtic.mil/docs/citations/ADA518687
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA518687
geographic Arctic
Arctic Ocean
Northwest Passage
geographic_facet Arctic
Arctic Ocean
Northwest Passage
genre Arctic
Arctic Ocean
Northern Sea Route
Northwest passage
Sea ice
genre_facet Arctic
Arctic Ocean
Northern Sea Route
Northwest passage
Sea ice
op_source DTIC
op_relation http://www.dtic.mil/docs/citations/ADA518687
op_rights Approved for public release; distribution is unlimited.
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