The zonal North Pacific Oscillation: a high-impact atmospheric teleconnection pattern influencing the North Pacific and North America
Based on unfiltered daily Japanese 55 year reanalysis covering the 60 winters in 1958–2018, a new teleconnection pattern called the zonal North Pacific Oscillation (ZNPO) pattern has been detected. The ZNPO pattern describes a mass oscillation in the troposphere between the eastern and western North...
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ftdoajarticles:oai:doaj.org/article:684f3271c4e2416ca4e68e25a98771b3 2023-09-05T13:18:31+02:00 The zonal North Pacific Oscillation: a high-impact atmospheric teleconnection pattern influencing the North Pacific and North America Anran Zhuge Benkui Tan 2021-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/ac037b https://doaj.org/article/684f3271c4e2416ca4e68e25a98771b3 EN eng IOP Publishing https://doi.org/10.1088/1748-9326/ac037b https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ac037b 1748-9326 https://doaj.org/article/684f3271c4e2416ca4e68e25a98771b3 Environmental Research Letters, Vol 16, Iss 7, p 074007 (2021) zonal North Pacific Oscillation atmospheric teleconnection subseasonal climate variability Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2021 ftdoajarticles https://doi.org/10.1088/1748-9326/ac037b 2023-08-13T00:37:11Z Based on unfiltered daily Japanese 55 year reanalysis covering the 60 winters in 1958–2018, a new teleconnection pattern called the zonal North Pacific Oscillation (ZNPO) pattern has been detected. The ZNPO pattern describes a mass oscillation in the troposphere between the eastern and western North Pacific, persisting for a week or so. It is shown that the ZNPO pattern is a high-impact teleconnection pattern that brings the wintertime North Pacific and North America severe weather and hydroclimate events. It may cause rapid surface air temperature drop or rise over the northern North Pacific and North America, remarkable sea ice concentration anomalies over the northeastern Bering Sea, and strong convective anomalies in the lower troposphere over the eastern and western midlatitude North Pacific. The ZNPO pattern arises from two westward-moving geopotential height disturbances over the North Pacific and North America and is driven mainly by baroclinic energy conversion and feedback forcing by transient eddies. The baroclinic energy conversion acts to overcome the available potential energy (APE) loss caused by the heat flux of transient eddies and at the same time acts as a major kinetic energy (KE) source to maintain the ZNPO pattern. The barotropic feedback forcing by transient eddies acts as a major KE source to drive the ZNPO pattern during the growing stage of the ZNPO pattern and as a major KE sink to heavily damp the ZNPO pattern during the decaying stage. Article in Journal/Newspaper Bering Sea Sea ice Directory of Open Access Journals: DOAJ Articles Bering Sea Pacific Environmental Research Letters 16 7 074007 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
zonal North Pacific Oscillation atmospheric teleconnection subseasonal climate variability Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
zonal North Pacific Oscillation atmospheric teleconnection subseasonal climate variability Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Anran Zhuge Benkui Tan The zonal North Pacific Oscillation: a high-impact atmospheric teleconnection pattern influencing the North Pacific and North America |
topic_facet |
zonal North Pacific Oscillation atmospheric teleconnection subseasonal climate variability Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Based on unfiltered daily Japanese 55 year reanalysis covering the 60 winters in 1958–2018, a new teleconnection pattern called the zonal North Pacific Oscillation (ZNPO) pattern has been detected. The ZNPO pattern describes a mass oscillation in the troposphere between the eastern and western North Pacific, persisting for a week or so. It is shown that the ZNPO pattern is a high-impact teleconnection pattern that brings the wintertime North Pacific and North America severe weather and hydroclimate events. It may cause rapid surface air temperature drop or rise over the northern North Pacific and North America, remarkable sea ice concentration anomalies over the northeastern Bering Sea, and strong convective anomalies in the lower troposphere over the eastern and western midlatitude North Pacific. The ZNPO pattern arises from two westward-moving geopotential height disturbances over the North Pacific and North America and is driven mainly by baroclinic energy conversion and feedback forcing by transient eddies. The baroclinic energy conversion acts to overcome the available potential energy (APE) loss caused by the heat flux of transient eddies and at the same time acts as a major kinetic energy (KE) source to maintain the ZNPO pattern. The barotropic feedback forcing by transient eddies acts as a major KE source to drive the ZNPO pattern during the growing stage of the ZNPO pattern and as a major KE sink to heavily damp the ZNPO pattern during the decaying stage. |
format |
Article in Journal/Newspaper |
author |
Anran Zhuge Benkui Tan |
author_facet |
Anran Zhuge Benkui Tan |
author_sort |
Anran Zhuge |
title |
The zonal North Pacific Oscillation: a high-impact atmospheric teleconnection pattern influencing the North Pacific and North America |
title_short |
The zonal North Pacific Oscillation: a high-impact atmospheric teleconnection pattern influencing the North Pacific and North America |
title_full |
The zonal North Pacific Oscillation: a high-impact atmospheric teleconnection pattern influencing the North Pacific and North America |
title_fullStr |
The zonal North Pacific Oscillation: a high-impact atmospheric teleconnection pattern influencing the North Pacific and North America |
title_full_unstemmed |
The zonal North Pacific Oscillation: a high-impact atmospheric teleconnection pattern influencing the North Pacific and North America |
title_sort |
zonal north pacific oscillation: a high-impact atmospheric teleconnection pattern influencing the north pacific and north america |
publisher |
IOP Publishing |
publishDate |
2021 |
url |
https://doi.org/10.1088/1748-9326/ac037b https://doaj.org/article/684f3271c4e2416ca4e68e25a98771b3 |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Bering Sea Sea ice |
genre_facet |
Bering Sea Sea ice |
op_source |
Environmental Research Letters, Vol 16, Iss 7, p 074007 (2021) |
op_relation |
https://doi.org/10.1088/1748-9326/ac037b https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ac037b 1748-9326 https://doaj.org/article/684f3271c4e2416ca4e68e25a98771b3 |
op_doi |
https://doi.org/10.1088/1748-9326/ac037b |
container_title |
Environmental Research Letters |
container_volume |
16 |
container_issue |
7 |
container_start_page |
074007 |
_version_ |
1776199469509902336 |