Meridional distribution and seasonal variation of stable oxygen isotope ratio of precipitation in the Southern Ocean

The stable oxygen isotope ratio(δ^<18>O) in precipitation is known to have important meridional and seasonal variations, but there are almost no measurements of δ^<18>O in precipitation over polar oceans. The present research took advantage of 4 opportunities for in situ observations in summer and... Ausführliche Beschreibung

1. Person: Kayo Nakamura verfasserin
Weitere Personen: Shigeru Aoki verfasserin; Takenobu Toyota verfasserin; Yuichi Aoyama verfasserin
Quelle: In Antarctic Record (01.07.2010)
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Format: Online-Artikel
Sprache: English
Japanese
Veröffentlicht: 2010
Beschreibung: Online-Ressource
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  Creative Commons License Source: Directory of Open Access Journals (DOAJ).
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041 0 |a eng  |a jpn 
100 0 |a Kayo Nakamura  |e verfasserin  |4 aut 
245 1 0 |a Meridional distribution and seasonal variation of stable oxygen isotope ratio of precipitation in the Southern Ocean  |h Elektronische Ressource 
300 |a Online-Ressource 
520 |a The stable oxygen isotope ratio(δ^<18>O) in precipitation is known to have important meridional and seasonal variations, but there are almost no measurements of δ^<18>O in precipitation over polar oceans. The present research took advantage of 4 opportunities for in situ observations in summer and winter at high latitudes in the Southern Ocean. In addition, we analyzed samples of precipitation at Syowa Station in 2008 to obtain year-round data. Based on these data, we consider the meridional and seasonal variations of δ^<18>O in precipitation over the Southern Ocean. In general, δ^<18>O decreases with increasing latitude, and is lower in winter than in summer. The latitude gradient is stronger in winter. At 60°S, δ^<18>O is -5.4‰ and -11.3‰ in summer and winter, respectively, while the corresponding figures at 66°S are -10.5‰ and -20.8‰. These results will help us understand the mechanisms of the salinity distribution and its variation in the Antarctic Ocean. 
700 0 |a Shigeru Aoki  |e verfasserin  |4 aut 
700 0 |a Takenobu Toyota  |e verfasserin  |4 aut 
700 0 |a Yuichi Aoyama  |e verfasserin  |4 aut 
773 0 8 |i In  |t Antarctic Record  |g  (01.07.2010)  |w (DE-601)DOAJ000100218  |x 0085-7289 
856 4 0 |u http://dx.doi.org/10.15094/00009534 
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856 4 0 |u http://doi.org/10.15094/00009534 
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856 4 0 |u https://doaj.org/toc/2432-079X 
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952 |j 2010  |b 01  |c 07 

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