Global structure of Bidecadal precipitation variability in boreal winter
Three global monthly precipitation datasets, including gauge measurements, gauge/satellite merged analysis (CMAP), and NCEP/NCAR reanalysis, are analyzed with respect to Bi-Decadal Oscillation (BDO) in boreal winter during the 20th century. Correlation and coherency analyses between the precipitatio...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/20064 2023-05-15T13:14:56+02:00 Global structure of Bidecadal precipitation variability in boreal winter Minobe, Shoshiro Nakanowatari, Takuya http://hdl.handle.net/2115/20064 https://doi.org/10.1029/2001GL014447 eng eng American Geophysical Union http://hdl.handle.net/2115/20064 Geophysical Research Letters, 29(10): 1396 http://dx.doi.org/10.1029/2001GL014447 An edited version of this paper was published by AGU. Copyright 2002, American Geophysical Union, Geophisical Research Letters, Vol. 29-10 452 article (author version) fthokunivhus https://doi.org/10.1029/2001GL014447 2022-11-18T01:01:25Z Three global monthly precipitation datasets, including gauge measurements, gauge/satellite merged analysis (CMAP), and NCEP/NCAR reanalysis, are analyzed with respect to Bi-Decadal Oscillation (BDO) in boreal winter during the 20th century. Correlation and coherency analyses between the precipitations and the strength of the Aleutian low, which is an action center of the BDO, reveal substantial impacts of the BDO on precipitations around the Pacific Ocean. The covariability of the precipitations is prominent for Hawaii, mid-latitude eastern North America, Florida and eastern-China/Southern-Japan, and at some other regions including the Southern Hemisphere. The most coherent BDO precipitation pattern common to the CMAP and reanalysis features significant anomalies over the tropical (10°–30°N), central (30°–50°N) and northern (50°–70°N) North Pacific with alternating polarities. The influence of the BDO on Hawaii winter droughts and salinity in the North Pacific is discussed. Article in Journal/Newspaper aleutian low Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Pacific Geophysical Research Letters 29 10 35-1 35-4 |
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Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
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fthokunivhus |
language |
English |
topic |
452 |
spellingShingle |
452 Minobe, Shoshiro Nakanowatari, Takuya Global structure of Bidecadal precipitation variability in boreal winter |
topic_facet |
452 |
description |
Three global monthly precipitation datasets, including gauge measurements, gauge/satellite merged analysis (CMAP), and NCEP/NCAR reanalysis, are analyzed with respect to Bi-Decadal Oscillation (BDO) in boreal winter during the 20th century. Correlation and coherency analyses between the precipitations and the strength of the Aleutian low, which is an action center of the BDO, reveal substantial impacts of the BDO on precipitations around the Pacific Ocean. The covariability of the precipitations is prominent for Hawaii, mid-latitude eastern North America, Florida and eastern-China/Southern-Japan, and at some other regions including the Southern Hemisphere. The most coherent BDO precipitation pattern common to the CMAP and reanalysis features significant anomalies over the tropical (10°–30°N), central (30°–50°N) and northern (50°–70°N) North Pacific with alternating polarities. The influence of the BDO on Hawaii winter droughts and salinity in the North Pacific is discussed. |
format |
Article in Journal/Newspaper |
author |
Minobe, Shoshiro Nakanowatari, Takuya |
author_facet |
Minobe, Shoshiro Nakanowatari, Takuya |
author_sort |
Minobe, Shoshiro |
title |
Global structure of Bidecadal precipitation variability in boreal winter |
title_short |
Global structure of Bidecadal precipitation variability in boreal winter |
title_full |
Global structure of Bidecadal precipitation variability in boreal winter |
title_fullStr |
Global structure of Bidecadal precipitation variability in boreal winter |
title_full_unstemmed |
Global structure of Bidecadal precipitation variability in boreal winter |
title_sort |
global structure of bidecadal precipitation variability in boreal winter |
publisher |
American Geophysical Union |
url |
http://hdl.handle.net/2115/20064 https://doi.org/10.1029/2001GL014447 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
aleutian low |
genre_facet |
aleutian low |
op_relation |
http://hdl.handle.net/2115/20064 Geophysical Research Letters, 29(10): 1396 http://dx.doi.org/10.1029/2001GL014447 |
op_rights |
An edited version of this paper was published by AGU. Copyright 2002, American Geophysical Union, Geophisical Research Letters, Vol. 29-10 |
op_doi |
https://doi.org/10.1029/2001GL014447 |
container_title |
Geophysical Research Letters |
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29 |
container_issue |
10 |
container_start_page |
35-1 |
op_container_end_page |
35-4 |
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1766266168905039872 |