Predicting Interannual Variability in Sea Surface Height Along the West Coast of Australia Using a Simple Ocean Model

Nagura, Motoki; McPhaden, Michael J.

doi:10.1029/2021GL094592

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Predicting Interannual Variability in Sea Surface Height Along the West Coast of Australia Using a Simple Ocean Model

2021
By Nagura, Motoki ; McPhaden, Michael J.
Source: Geophysical Research Letters

[PDF-639.34 KB]

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Journal Title:

Geophysical Research Letters, 48(18)
Personal Author:

Nagura, Motoki ; McPhaden, Michael J.

Nagura, Motoki ; McPhaden, Michael 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:

Sea surface height (SSH) along the west coast of Australia is key to local climate and is strongly forced by remote surface wind variability related to El Niño Southern Oscillation (ENSO) in the tropical Pacific Ocean. This study provides a method to predict interannual variability in SSH along the west coast of Australia using a simple 1.5-layer dynamical ocean model forced by a statistical atmospheric model for ENSO-related winds. The model has realistic coastlines and is driven by reanalysis surface winds regressed onto an ENSO index. The model when run in hindcast mode to predict past variability can simulate tide gauge observations at Fremantle along the west coast of Australia up to 13 months in advance, which outperforms persistence. We conclude that this methodology can be useful as a baseline for gauging the performance of more sophisticated forecast models for predicting SSH variations along the west coast of Australia.
Keywords:

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Ocean surface topography
Source:

Geophysical Research Letters
DOI:

https://doi.org/10.1029/2021GL094592
Document Type:

Journal Article
Place as Subject:

Australia
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Submitted
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urn:sha256:14c42b7d4e86d60f7531e58cceabf0f640788e733e4dde96330d4104b00e3ae2
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https://repository.library.noaa.gov/view/noaa/32626/noaa_32626_DS1.pdf
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Predicting Interannual Variability in Sea Surface Height Along the West Coast of Australia Using a Simple Ocean Model

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