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Impact of atmospheric blocking on South America in Austral Summer

Abstract:

In this study, we investigate atmospheric blocking over east South America in austral summer for the period of 1979-2014. Our results show that blocking over this area is a consequence of propagating Rossby waves that grow to large amplitudes and eventually break anticyclonically over subtropical South America (SSA). The SSA blocking can prevent the establishment of the South Atlantic Convergence Zone (SACZ). As such, years with more blocking days coincide with years with fewer SACZ days and ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1175/JCLI-D-16-0493.1

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Department:
Oxford, MPLS, Physics, Atmos Ocean & Planet Physics
More by this author
Department:
Oxford, MPLS, Physics, Atmos Ocean & Planet Physics
Publisher:
American Meteorological Society Publisher's website
Journal:
Journal of Climate Journal website
Volume:
30
Issue:
5
Pages:
1821-1837
Publication date:
2017-02-20
Acceptance date:
2016-11-26
DOI:
EISSN:
1520-0442
ISSN:
0894-8755
Pubs id:
pubs:664279
URN:
uri:fac5d9cc-b404-4b7f-8274-c45106097e38
UUID:
uuid:fac5d9cc-b404-4b7f-8274-c45106097e38
Local pid:
pubs:664279

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