Reconstruction of Local Sea Levels at South West Pacific Islands-A Multiple Linear Regression Approach (1988-2014)

Kumar, V.; Melet, A.; Meyssignac, B.; Ganachaud, A.; Kessler, W. S.; Singh, A.; Aucan, J.

doi:10.1002/2017jc013053

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i

Reconstruction of Local Sea Levels at South West Pacific Islands-A Multiple Linear Regression Approach (1988-2014)

2018
By Kumar, V. ; Melet, A. ; Meyssignac, B. ; ...
Source: Journal of Geophysical Research: Oceans, 123(2), 1502-1518

[PDF-1.87 MB]

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Details:

Journal Title:

Journal of Geophysical Research: Oceans
Personal Author:

Kumar, V. ; Melet, A. ; Meyssignac, B. ; Ganachaud, A. ; Kessler, W. S. ; ... More +

Kumar, V. ; Melet, A. ; Meyssignac, B. ; Ganachaud, A. ; Kessler, W. S. ; Singh, A. ; Aucan, J. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory)

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) Less -
Description:

Rising sea levels are a critical concern in small island nations. The problem is especially serious in the western south Paciﬁc, where the total sea level rise over the last 60 years has been up to 3 times theglobal average. In this study, we aim at reconstructing sea levels at selected sites in the region (Suva, Lautoka—Fiji, and Noum /C19ea—New Caledonia) as a multilinear regression (MLR) of atmospheric and oceanic variables. We focus on sea level variability at interannual-to-interdecadal time scales, and trend over the1988–2014 period. Local sea levels are ﬁrst expressed as a sum of steric and mass changes. Then a dynami- cal approach is used based on wind stress curl as a proxy for the thermosteric component, as wind stress curl anomalies can modulate the thermocline depth and resultant sea levels via Rossby wave propagation.Statistically signiﬁcant predictors among wind stress curl, halosteric sea level, zonal/meridional wind stress components, and sea surface temperature are used to construct a MLR model simulating local sea levels.
Keywords:

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Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Oceanography Space And Planetary Science
Source:

Journal of Geophysical Research: Oceans, 123(2), 1502-1518
DOI:

https://doi.org/10.1002/2017jc013053
ISSN:

2169-9275
Format:

PDF
Publisher:

American Geophysical Union (AGU)
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Journal Article
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urn:sha256:c55fb522613b5133221ebdb38e87ba59105b562f440486d032707369fdb10bcc
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https://repository.library.noaa.gov/view/noaa/53724/noaa_53724_DS1.pdf
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