Sea level change in Hong Kong from tide gauge measurements of 1954-1999

Xiaoli Ding; D. Zheng; Y. Chen; J. Chao; Zhilin Li

doi:10.1007/s001900000128

Sea level change in Hong Kong from tide gauge measurements of 1954-1999

Xiaoli Ding, D. Zheng, Y. Chen, J. Chao, Zhilin Li

Research output: Journal article publication › Journal article › Academic research › peer-review

44 Citations (Scopus)

Abstract

Tide gauge records of Hong Kong covering the past 45 years (1954.0-1999.0) are adopted to analyze the basic features of sea level changes in the region. Data sets of atmospheric pressure, southern oscillation index and sea surface temperature during the same time span are also used to determine the possible link between the sea level changes in Hong Kong and local and global geophysical processes. Results indicate that the sea level of Hong Kong has a rising trend of 1.9 ± 0.4 mm per year, and that there is an upward offset of about 15 cm in the pre-1957.0 tide gauge records. The effect of local atmospheric pressure variations on the amplitude of the annual sea level change is about 30% of the amplitude that is calculated after the effect is corrected. It is also found that the interannual variations in the sea level of Hong Kong are related to El Niño and La Niña events that happen frequently in the tropical Pacific.

Original language	English
Pages (from-to)	683-689
Number of pages	7
Journal	Journal of Geodesy
Volume	74
Issue number	10
DOIs	https://doi.org/10.1007/s001900000128
Publication status	Published - 11 Apr 2001

Keywords

Interannual variation
Sea level change
Tide gauge

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology
Computers in Earth Sciences

More information

10.1007/s001900000128

Cite this

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title = "Sea level change in Hong Kong from tide gauge measurements of 1954-1999",

abstract = "Tide gauge records of Hong Kong covering the past 45 years (1954.0-1999.0) are adopted to analyze the basic features of sea level changes in the region. Data sets of atmospheric pressure, southern oscillation index and sea surface temperature during the same time span are also used to determine the possible link between the sea level changes in Hong Kong and local and global geophysical processes. Results indicate that the sea level of Hong Kong has a rising trend of 1.9 ± 0.4 mm per year, and that there is an upward offset of about 15 cm in the pre-1957.0 tide gauge records. The effect of local atmospheric pressure variations on the amplitude of the annual sea level change is about 30% of the amplitude that is calculated after the effect is corrected. It is also found that the interannual variations in the sea level of Hong Kong are related to El Ni{\~n}o and La Ni{\~n}a events that happen frequently in the tropical Pacific.",

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AU - Ding, Xiaoli

AU - Zheng, D.

AU - Chen, Y.

AU - Chao, J.

AU - Li, Zhilin

PY - 2001/4/11

Y1 - 2001/4/11

N2 - Tide gauge records of Hong Kong covering the past 45 years (1954.0-1999.0) are adopted to analyze the basic features of sea level changes in the region. Data sets of atmospheric pressure, southern oscillation index and sea surface temperature during the same time span are also used to determine the possible link between the sea level changes in Hong Kong and local and global geophysical processes. Results indicate that the sea level of Hong Kong has a rising trend of 1.9 ± 0.4 mm per year, and that there is an upward offset of about 15 cm in the pre-1957.0 tide gauge records. The effect of local atmospheric pressure variations on the amplitude of the annual sea level change is about 30% of the amplitude that is calculated after the effect is corrected. It is also found that the interannual variations in the sea level of Hong Kong are related to El Niño and La Niña events that happen frequently in the tropical Pacific.

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Sea level change in Hong Kong from tide gauge measurements of 1954-1999

Abstract

Keywords

ASJC Scopus subject areas

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