What caused the cool summer over northern Central Asia, East Asia and central North America during 2009?
Cool and wet weather conditions hit northern Central Asia, East Asia and central North America during the 2009 summer in concert with a strong jet stream and a prominent meandering upper-level circulation in the Northern Hemisphere mid-latitudes despite the fact that the year 2009 is the fifth warme...
Published in: | Environmental Research Letters |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
IOP Publishing
2012
|
Subjects: | |
Online Access: | https://doi.org/10.1088/1748-9326/7/4/044015 https://doaj.org/article/1cb1b4c5cdc74a5f82768a9a17edcec0 |
id |
ftdoajarticles:oai:doaj.org/article:1cb1b4c5cdc74a5f82768a9a17edcec0 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:1cb1b4c5cdc74a5f82768a9a17edcec0 2023-09-05T13:17:14+02:00 What caused the cool summer over northern Central Asia, East Asia and central North America during 2009? Kyung-Ja Ha Jung-Eun Chu June-Yi Lee Bin Wang Saji N Hameed Masahiro Watanabe 2012-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/7/4/044015 https://doaj.org/article/1cb1b4c5cdc74a5f82768a9a17edcec0 EN eng IOP Publishing https://doi.org/10.1088/1748-9326/7/4/044015 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/7/4/044015 1748-9326 https://doaj.org/article/1cb1b4c5cdc74a5f82768a9a17edcec0 Environmental Research Letters, Vol 7, Iss 4, p 044015 (2012) cool summer atmospheric variability El Niño circumglobal teleconnection Arctic oscillation Indian summer monsoon Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2012 ftdoajarticles https://doi.org/10.1088/1748-9326/7/4/044015 2023-08-13T00:37:44Z Cool and wet weather conditions hit northern Central Asia, East Asia and central North America during the 2009 summer in concert with a strong jet stream and a prominent meandering upper-level circulation in the Northern Hemisphere mid-latitudes despite the fact that the year 2009 is the fifth warmest year globally in the modern record. It is found that the conspicuous atmospheric variability in the entire Northern Hemisphere mid-latitudes during the summer of 2009 was caused by a combination of teleconnections associated with significant tropical thermal forcings, strong polar forcing, and interaction between high-frequency weather events and climate anomalies. The strong negative circumglobal teleconnection pattern associated with the deficient Indian summer monsoon rainfall and developing El Niño condition was the major contributor to the cool and wet summer in June. On the other hand, the July weather conditions were attributable to the high-latitude impact of the unprecedented negative Arctic Oscillation, together with the Rossby wave response to the subtropical heating generated by convective activities over the Western North Pacific summer monsoon region. It is also noted that enhanced storm track activity and frequent cold surges from high-latitudes may have played a role in the cool and wet summer over the regions of interest. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Pacific Indian Environmental Research Letters 7 4 044015 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
cool summer atmospheric variability El Niño circumglobal teleconnection Arctic oscillation Indian summer monsoon Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
cool summer atmospheric variability El Niño circumglobal teleconnection Arctic oscillation Indian summer monsoon Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Kyung-Ja Ha Jung-Eun Chu June-Yi Lee Bin Wang Saji N Hameed Masahiro Watanabe What caused the cool summer over northern Central Asia, East Asia and central North America during 2009? |
topic_facet |
cool summer atmospheric variability El Niño circumglobal teleconnection Arctic oscillation Indian summer monsoon Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Cool and wet weather conditions hit northern Central Asia, East Asia and central North America during the 2009 summer in concert with a strong jet stream and a prominent meandering upper-level circulation in the Northern Hemisphere mid-latitudes despite the fact that the year 2009 is the fifth warmest year globally in the modern record. It is found that the conspicuous atmospheric variability in the entire Northern Hemisphere mid-latitudes during the summer of 2009 was caused by a combination of teleconnections associated with significant tropical thermal forcings, strong polar forcing, and interaction between high-frequency weather events and climate anomalies. The strong negative circumglobal teleconnection pattern associated with the deficient Indian summer monsoon rainfall and developing El Niño condition was the major contributor to the cool and wet summer in June. On the other hand, the July weather conditions were attributable to the high-latitude impact of the unprecedented negative Arctic Oscillation, together with the Rossby wave response to the subtropical heating generated by convective activities over the Western North Pacific summer monsoon region. It is also noted that enhanced storm track activity and frequent cold surges from high-latitudes may have played a role in the cool and wet summer over the regions of interest. |
format |
Article in Journal/Newspaper |
author |
Kyung-Ja Ha Jung-Eun Chu June-Yi Lee Bin Wang Saji N Hameed Masahiro Watanabe |
author_facet |
Kyung-Ja Ha Jung-Eun Chu June-Yi Lee Bin Wang Saji N Hameed Masahiro Watanabe |
author_sort |
Kyung-Ja Ha |
title |
What caused the cool summer over northern Central Asia, East Asia and central North America during 2009? |
title_short |
What caused the cool summer over northern Central Asia, East Asia and central North America during 2009? |
title_full |
What caused the cool summer over northern Central Asia, East Asia and central North America during 2009? |
title_fullStr |
What caused the cool summer over northern Central Asia, East Asia and central North America during 2009? |
title_full_unstemmed |
What caused the cool summer over northern Central Asia, East Asia and central North America during 2009? |
title_sort |
what caused the cool summer over northern central asia, east asia and central north america during 2009? |
publisher |
IOP Publishing |
publishDate |
2012 |
url |
https://doi.org/10.1088/1748-9326/7/4/044015 https://doaj.org/article/1cb1b4c5cdc74a5f82768a9a17edcec0 |
geographic |
Arctic Pacific Indian |
geographic_facet |
Arctic Pacific Indian |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Environmental Research Letters, Vol 7, Iss 4, p 044015 (2012) |
op_relation |
https://doi.org/10.1088/1748-9326/7/4/044015 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/7/4/044015 1748-9326 https://doaj.org/article/1cb1b4c5cdc74a5f82768a9a17edcec0 |
op_doi |
https://doi.org/10.1088/1748-9326/7/4/044015 |
container_title |
Environmental Research Letters |
container_volume |
7 |
container_issue |
4 |
container_start_page |
044015 |
_version_ |
1776198483624067072 |