Multidecadal variability and climate shift in the North Atlantic Ocean

Seidov, Dan; Mishonov, Alexey; Reagan, James; Parsons, Rost

doi:10.1002/2017GL073644

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Multidecadal variability and climate shift in the North Atlantic Ocean

2017
By Seidov, Dan ; Mishonov, Alexey ; Reagan, James ; ...
Source: Geophys. Res. Lett., 44, 4985– 4993

[PDF-1.67 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

Seidov, Dan ; Mishonov, Alexey ; Reagan, James ; Parsons, Rost

Seidov, Dan ; Mishonov, Alexey ; Reagan, James ; Parsons, Rost Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information) ; CICSM (Cooperative Institute for Climate and Satellites Maryland)

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information) ; CICSM (Cooperative Institute for Climate and Satellites Maryland) Less -
Description:

Decadal variability of ocean heat content (OHC) and temperature trends over ~60 years in the North Atlantic Ocean were analyzed using a new high-resolution ocean climatology based on quality-controlled historic in situ observations. Тwo ~30 year ocean climates of 1955–1984 and 1985–2012 were compared to evaluate the climate shift in this region. The spatial distribution of the OHC climate shift is highly inhomogeneous, with the climate shift being the strongest southeast of the Gulf Stream Extension. This may be caused by the Atlantic Meridional Overturning Circulation slowdown in conjunction with heaving of warm subtropical water. The 30 year climate shift shows higher OHC gain in the Gulf Stream region than reported in shorter timescale estimates. The OHC change is generally coherent with the Atlantic Multidecadal Oscillation index. This coherence suggests that quasi-cyclicity of the OHC may exist, with a period of 60 to 80 years, superimposed on the slow basin-wide warming trend.
Keywords:

[+]

Climatology Observations Ocean Heat Content
Source:

Geophys. Res. Lett., 44, 4985– 4993
DOI:

https://doi.org/10.1002/2017GL073644
Document Type:

Journal Article
Funding:

Grant no. NA14NES4320003
Place as Subject:

Atlantic Ocean
Rights Information:

Other
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:f00c6136db0d695ec6211bd208231f1c12d03782e83b29b221eb976b4effbd39
Download URL:

https://repository.library.noaa.gov/view/noaa/33225/noaa_33225_DS1.pdf
File Type:

Dataset available

htm

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