Estimation of Sea Surface Height using Pressure-recording Inverted Echo Sounders Data in the Mindanao Current Region

Chorong Hwang; Hong Sik Min; Chanhyung Jeon; Dong Guk Kim; Jae-Hun Park

doi:10.4217/OPR.2021.43.4.219

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2021 Vol.43, Issue 4 Preview Page Next Page

Article

Estimation of Sea Surface Height using Pressure-recording Inverted Echo Sounders Data in the Mindanao Current Region 민다나오 해류 해역에서 PIES 자료를 이용한 해수면 산출

30 December 2021. pp. 219-227

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Abstract

Sea surface height (SSH) anomalies were estimated from data recorded by four pressure-recording inverted echo sounders (PIESs) in the Mindanao Current region over a duration of 2 years from December 2017 to November 2019. The steric components of SSH anomalies were derived from round-trip acoustic travel times from the sea floor to the sea surface, whereas mass-loading components were derived from bottom pressures. Temporal variabilities in the total (steric and mass-loading) SSH anomalies and the steric component are extremely similar; this result implies that the steric component plays a major role in SSH anomalies in this region. Comparisons of the PIES-derived SSH anomalies with satellite-measured SSH anomalies reveal that the former has less temporal variability. Correlation coefficients between the total SSH anomalies and satellite-measured SSH anomalies are less than 0.85, which is lower than the correlation coefficient between the steric components and satellite-measured SSH anomalies.

Keywords

sea surface height

pressure-recording inverted echo sounders (PIES)

satellite altimetry

mindanao current region

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Information

Publisher :Korea Institute of Ocean Science and Technology
Publisher(Ko) :한국해양과학기술원
Journal Title :Ocean and Polar Research
Journal Title(Ko) :Ocean and Polar Research
Volume : 43
No :4
Pages :219-227
Received Date : 2021-10-14
Revised Date : 2021-12-02
Accepted Date : 2021-12-05
DOI :https://doi.org/10.4217/OPR.2021.43.4.219

Ocean and Polar Research ISSN:2234-7313(Online) Ocean and Polar Research

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