The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans
Boreal winter jet variability over the North Atlantic is investigated using 40-yr European Centre for Medium-Range Weather Forecasts Re-Analysis (ERA-40) data, where the variability is defined by the first EOF of the zonal wind on seven vertical levels. The principal component time series of this EO...
Published in: | Journal of Climate |
---|---|
Main Authors: | , , , |
Other Authors: | , , , |
Format: | Journal/Newspaper |
Language: | English |
Published: |
journal of climate
2011
|
Subjects: | |
Online Access: | https://hdl.handle.net/20.500.11897/296968 https://doi.org/10.1175/2011JCLI4203.1 |
id |
ftpekinguniv:oai:localhost:20.500.11897/296968 |
---|---|
record_format |
openpolar |
spelling |
ftpekinguniv:oai:localhost:20.500.11897/296968 2023-05-15T15:14:48+02:00 The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans Yuan, Jiacan Feldstein, Steven B. Lee, Sukyoung Tan, Benkui Yuan, JC (reprint author), Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing 100871, Peoples R China. Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA. Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. 2011 https://hdl.handle.net/20.500.11897/296968 https://doi.org/10.1175/2011JCLI4203.1 en eng journal of climate JOURNAL OF CLIMATE.2011,24,(23),6100-6113. 896209 0894-8755 http://hdl.handle.net/20.500.11897/296968 doi:10.1175/2011JCLI4203.1 WOS:000298020500009 EI SCI MADDEN-JULIAN OSCILLATION ARCTIC OSCILLATION CLIMATE-CHANGE TELECONNECTION PATTERNS HEMISPHERE WINTER WAVE-GUIDE VARIABILITY STREAM NAO TEMPERATURES Journal 2011 ftpekinguniv https://doi.org/20.500.11897/296968 https://doi.org/10.1175/2011JCLI4203.1 2021-08-01T09:23:14Z Boreal winter jet variability over the North Atlantic is investigated using 40-yr European Centre for Medium-Range Weather Forecasts Re-Analysis (ERA-40) data, where the variability is defined by the first EOF of the zonal wind on seven vertical levels. The principal component time series of this EOF is referred to as the jet index. A pattern correlation analysis indicates that the jet index more accurately describes intraseasonal North Atlantic zonal wind variability than does the North Atlantic Oscillation (NAG). A series of composite calculations of the jet index based on events of intraseasonal convective precipitation over the tropical Indian and western Pacific Oceans reveals the following statistically significant relationships: 1) negative jet events lead enhanced Indian Ocean precipitation, 2) positive jet events lag enhanced Indian Ocean precipitation, 3) positive jet events lead enhanced western Pacific Ocean precipitation, and 4) negative jet events lag enhanced western Pacific Ocean precipitation. These intraseasonal relationships are found to be linked through the circumglobal teleconnection pattern (CTP). Implications of the sign of the CTP being opposite to that of the jet index suggest that relationships 1 and 3 may arise from cold air surges associated with the CTP over these oceans. On interdecadal time scales, a much greater increase in the frequency of precipitation events from 1958 to 1979 (P1)10 1980 to 2001 (P2) was found for the Indian Ocean relative to the western Pacific Ocean. This observation, combined with relationships 2 and 4, leads to the suggestion that this change in the frequency of intraseasonal Indian Ocean precipitation events may make an important contribution to the excitation of interdecadal variability of the North Atlantic jet. Meteorology & Atmospheric Sciences SCI(E) EI 4 ARTICLE 23 6100-6113 24 Journal/Newspaper Arctic Climate change North Atlantic North Atlantic oscillation Peking University Institutional Repository (PKU IR) Arctic Indian Pacific Journal of Climate 24 23 6100 6113 |
institution |
Open Polar |
collection |
Peking University Institutional Repository (PKU IR) |
op_collection_id |
ftpekinguniv |
language |
English |
topic |
MADDEN-JULIAN OSCILLATION ARCTIC OSCILLATION CLIMATE-CHANGE TELECONNECTION PATTERNS HEMISPHERE WINTER WAVE-GUIDE VARIABILITY STREAM NAO TEMPERATURES |
spellingShingle |
MADDEN-JULIAN OSCILLATION ARCTIC OSCILLATION CLIMATE-CHANGE TELECONNECTION PATTERNS HEMISPHERE WINTER WAVE-GUIDE VARIABILITY STREAM NAO TEMPERATURES Yuan, Jiacan Feldstein, Steven B. Lee, Sukyoung Tan, Benkui The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans |
topic_facet |
MADDEN-JULIAN OSCILLATION ARCTIC OSCILLATION CLIMATE-CHANGE TELECONNECTION PATTERNS HEMISPHERE WINTER WAVE-GUIDE VARIABILITY STREAM NAO TEMPERATURES |
description |
Boreal winter jet variability over the North Atlantic is investigated using 40-yr European Centre for Medium-Range Weather Forecasts Re-Analysis (ERA-40) data, where the variability is defined by the first EOF of the zonal wind on seven vertical levels. The principal component time series of this EOF is referred to as the jet index. A pattern correlation analysis indicates that the jet index more accurately describes intraseasonal North Atlantic zonal wind variability than does the North Atlantic Oscillation (NAG). A series of composite calculations of the jet index based on events of intraseasonal convective precipitation over the tropical Indian and western Pacific Oceans reveals the following statistically significant relationships: 1) negative jet events lead enhanced Indian Ocean precipitation, 2) positive jet events lag enhanced Indian Ocean precipitation, 3) positive jet events lead enhanced western Pacific Ocean precipitation, and 4) negative jet events lag enhanced western Pacific Ocean precipitation. These intraseasonal relationships are found to be linked through the circumglobal teleconnection pattern (CTP). Implications of the sign of the CTP being opposite to that of the jet index suggest that relationships 1 and 3 may arise from cold air surges associated with the CTP over these oceans. On interdecadal time scales, a much greater increase in the frequency of precipitation events from 1958 to 1979 (P1)10 1980 to 2001 (P2) was found for the Indian Ocean relative to the western Pacific Ocean. This observation, combined with relationships 2 and 4, leads to the suggestion that this change in the frequency of intraseasonal Indian Ocean precipitation events may make an important contribution to the excitation of interdecadal variability of the North Atlantic jet. Meteorology & Atmospheric Sciences SCI(E) EI 4 ARTICLE 23 6100-6113 24 |
author2 |
Yuan, JC (reprint author), Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing 100871, Peoples R China. Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA. Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. |
format |
Journal/Newspaper |
author |
Yuan, Jiacan Feldstein, Steven B. Lee, Sukyoung Tan, Benkui |
author_facet |
Yuan, Jiacan Feldstein, Steven B. Lee, Sukyoung Tan, Benkui |
author_sort |
Yuan, Jiacan |
title |
The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans |
title_short |
The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans |
title_full |
The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans |
title_fullStr |
The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans |
title_full_unstemmed |
The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans |
title_sort |
relationship between the north atlantic jet and tropical convection over the indian and western pacific oceans |
publisher |
journal of climate |
publishDate |
2011 |
url |
https://hdl.handle.net/20.500.11897/296968 https://doi.org/10.1175/2011JCLI4203.1 |
geographic |
Arctic Indian Pacific |
geographic_facet |
Arctic Indian Pacific |
genre |
Arctic Climate change North Atlantic North Atlantic oscillation |
genre_facet |
Arctic Climate change North Atlantic North Atlantic oscillation |
op_source |
EI SCI |
op_relation |
JOURNAL OF CLIMATE.2011,24,(23),6100-6113. 896209 0894-8755 http://hdl.handle.net/20.500.11897/296968 doi:10.1175/2011JCLI4203.1 WOS:000298020500009 |
op_doi |
https://doi.org/20.500.11897/296968 https://doi.org/10.1175/2011JCLI4203.1 |
container_title |
Journal of Climate |
container_volume |
24 |
container_issue |
23 |
container_start_page |
6100 |
op_container_end_page |
6113 |
_version_ |
1766345213648830464 |