Arctic-North Pacific Coupled Impacts on the Late Autumn Cold in North America
The Pacific Decadal Oscillation (PDO) is known to bring an anomalously cold (warm) period to southeastern (northwestern) North America during the cold season of its positive phase through a Rossby wave linkage. This study provides evidence that the remote connection between the North Pacific and the...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20160011114 2023-05-15T14:35:57+02:00 Arctic-North Pacific Coupled Impacts on the Late Autumn Cold in North America Lim, Young-Kwon Sung, Mi-Kyung Kim, Seong-Joong Baik, Eun-Hyuk Kim, Baek-Min Unclassified, Unlimited, Publicly available August 18, 2016 application/pdf http://hdl.handle.net/2060/20160011114 unknown Document ID: 20160011114 http://hdl.handle.net/2060/20160011114 Copyright, Distribution under U.S. Government purpose rights CASI Meteorology and Climatology GSFC-E-DAA-TN34720 Environmental Research Letters (e-ISSN 1748-9326); 11; 8; 084016 2016 ftnasantrs 2019-07-20T23:45:52Z The Pacific Decadal Oscillation (PDO) is known to bring an anomalously cold (warm) period to southeastern (northwestern) North America during the cold season of its positive phase through a Rossby wave linkage. This study provides evidence that the remote connection between the North Pacific and the downstream temperature over central North America is strengthened by the warm arctic conditions over the Chukchi and East Siberian Sea, especially in the late autumn season. The modulation effect of the Arctic manifests itself as an altered Rossby wave response to a transient vorticity forcing that results from an equatorward storm track shift, which is induced collaboratively by the PDO and the warm Arctic. This observational finding is supported by two independent modeling experiments: 1) an idealized coupled GCM experiment being nudged toward the warm arctic surface condition and 2) a simple stationary wave model (SWM) experiment forced by transient eddy forcing. Other/Unknown Material Arctic Chukchi East Siberian Sea NASA Technical Reports Server (NTRS) Arctic East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Pacific |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Lim, Young-Kwon Sung, Mi-Kyung Kim, Seong-Joong Baik, Eun-Hyuk Kim, Baek-Min Arctic-North Pacific Coupled Impacts on the Late Autumn Cold in North America |
topic_facet |
Meteorology and Climatology |
description |
The Pacific Decadal Oscillation (PDO) is known to bring an anomalously cold (warm) period to southeastern (northwestern) North America during the cold season of its positive phase through a Rossby wave linkage. This study provides evidence that the remote connection between the North Pacific and the downstream temperature over central North America is strengthened by the warm arctic conditions over the Chukchi and East Siberian Sea, especially in the late autumn season. The modulation effect of the Arctic manifests itself as an altered Rossby wave response to a transient vorticity forcing that results from an equatorward storm track shift, which is induced collaboratively by the PDO and the warm Arctic. This observational finding is supported by two independent modeling experiments: 1) an idealized coupled GCM experiment being nudged toward the warm arctic surface condition and 2) a simple stationary wave model (SWM) experiment forced by transient eddy forcing. |
format |
Other/Unknown Material |
author |
Lim, Young-Kwon Sung, Mi-Kyung Kim, Seong-Joong Baik, Eun-Hyuk Kim, Baek-Min |
author_facet |
Lim, Young-Kwon Sung, Mi-Kyung Kim, Seong-Joong Baik, Eun-Hyuk Kim, Baek-Min |
author_sort |
Lim, Young-Kwon |
title |
Arctic-North Pacific Coupled Impacts on the Late Autumn Cold in North America |
title_short |
Arctic-North Pacific Coupled Impacts on the Late Autumn Cold in North America |
title_full |
Arctic-North Pacific Coupled Impacts on the Late Autumn Cold in North America |
title_fullStr |
Arctic-North Pacific Coupled Impacts on the Late Autumn Cold in North America |
title_full_unstemmed |
Arctic-North Pacific Coupled Impacts on the Late Autumn Cold in North America |
title_sort |
arctic-north pacific coupled impacts on the late autumn cold in north america |
publishDate |
2016 |
url |
http://hdl.handle.net/2060/20160011114 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic East Siberian Sea Pacific |
geographic_facet |
Arctic East Siberian Sea Pacific |
genre |
Arctic Chukchi East Siberian Sea |
genre_facet |
Arctic Chukchi East Siberian Sea |
op_source |
CASI |
op_relation |
Document ID: 20160011114 http://hdl.handle.net/2060/20160011114 |
op_rights |
Copyright, Distribution under U.S. Government purpose rights |
_version_ |
1766308682053713920 |