Abstract
Sea level rise will bring very high impacts to coastal area, including increased coastal erosion, increased flooding risk, more extensive coastal inundation, changes in surface water quality and groundwater characteristics and potential loss of life. IPCC (2007) announced the global average rate is 1.7±0.5 mm/yr for the 20th century. However, this rate is highly non-uniform in the world ocean. The purpose of this study is to know the regional value in the East Asia area. Long-term and qualified records from fifty-eight tide stations collected by PSMSL are used in this study. The linear trend of the sea level changes by least square approach is applied. We confirm the high variation on the sea level rising rates in the study area. At China Bohai Sea, the sea level change is steady within the past few decades. However at the Yangtze River mouth, the rate is large. It is 6.2 mm/yr which is several times of the global average value. A turning trend of the sea level fluctuation is found at the tide stations in Taiwan Island. The average rate of sea level rise of all the fifty-eight tide stations is 2.77 mm/yr for the East Asia area. This is 1.6 times higher than global average. In addition, we find the high rising rates happen at the band of Festoon Islands. This verifies the vertical land movement may contribute to some percentage to the sea level rise. To know the quantitative value of the sea level rise for coastal zone management, all causes should be take into account to have the equivalent value of sea level rise. However, to understand the component of sea level rise induced from global warming of the earth, the vertical land movement should be considered.
| Original language | English |
|---|---|
| Title of host publication | The Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE |
| Pages | 513-517 |
| Number of pages | 5 |
| Publication status | Published - 2009 Dec 1 |
| Event | 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE - Osaka, Japan Duration: 2009 Jun 21 → 2009 Jun 26 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| ISSN (Print) | 1098-6189 |
| ISSN (Electronic) | 1555-1792 |
Other
| Other | 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE |
|---|---|
| Country | Japan |
| City | Osaka |
| Period | 09-06-21 → 09-06-26 |
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All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Ocean Engineering
- Mechanical Engineering
Cite this
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Sea level rise at east asia coasts based on tide gauge analysis. / Doong, Dong Jiing; Hsu, Tai Wen; Wu, Li Chung; Kao, Chia Chuen.
The Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE. 2009. p. 513-517 (Proceedings of the International Offshore and Polar Engineering Conference).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Sea level rise at east asia coasts based on tide gauge analysis
AU - Doong, Dong Jiing
AU - Hsu, Tai Wen
AU - Wu, Li Chung
AU - Kao, Chia Chuen
PY - 2009/12/1
Y1 - 2009/12/1
N2 - Sea level rise will bring very high impacts to coastal area, including increased coastal erosion, increased flooding risk, more extensive coastal inundation, changes in surface water quality and groundwater characteristics and potential loss of life. IPCC (2007) announced the global average rate is 1.7±0.5 mm/yr for the 20th century. However, this rate is highly non-uniform in the world ocean. The purpose of this study is to know the regional value in the East Asia area. Long-term and qualified records from fifty-eight tide stations collected by PSMSL are used in this study. The linear trend of the sea level changes by least square approach is applied. We confirm the high variation on the sea level rising rates in the study area. At China Bohai Sea, the sea level change is steady within the past few decades. However at the Yangtze River mouth, the rate is large. It is 6.2 mm/yr which is several times of the global average value. A turning trend of the sea level fluctuation is found at the tide stations in Taiwan Island. The average rate of sea level rise of all the fifty-eight tide stations is 2.77 mm/yr for the East Asia area. This is 1.6 times higher than global average. In addition, we find the high rising rates happen at the band of Festoon Islands. This verifies the vertical land movement may contribute to some percentage to the sea level rise. To know the quantitative value of the sea level rise for coastal zone management, all causes should be take into account to have the equivalent value of sea level rise. However, to understand the component of sea level rise induced from global warming of the earth, the vertical land movement should be considered.
AB - Sea level rise will bring very high impacts to coastal area, including increased coastal erosion, increased flooding risk, more extensive coastal inundation, changes in surface water quality and groundwater characteristics and potential loss of life. IPCC (2007) announced the global average rate is 1.7±0.5 mm/yr for the 20th century. However, this rate is highly non-uniform in the world ocean. The purpose of this study is to know the regional value in the East Asia area. Long-term and qualified records from fifty-eight tide stations collected by PSMSL are used in this study. The linear trend of the sea level changes by least square approach is applied. We confirm the high variation on the sea level rising rates in the study area. At China Bohai Sea, the sea level change is steady within the past few decades. However at the Yangtze River mouth, the rate is large. It is 6.2 mm/yr which is several times of the global average value. A turning trend of the sea level fluctuation is found at the tide stations in Taiwan Island. The average rate of sea level rise of all the fifty-eight tide stations is 2.77 mm/yr for the East Asia area. This is 1.6 times higher than global average. In addition, we find the high rising rates happen at the band of Festoon Islands. This verifies the vertical land movement may contribute to some percentage to the sea level rise. To know the quantitative value of the sea level rise for coastal zone management, all causes should be take into account to have the equivalent value of sea level rise. However, to understand the component of sea level rise induced from global warming of the earth, the vertical land movement should be considered.
UR - http://www.scopus.com/inward/record.url?scp=74549220693&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=74549220693&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:74549220693
SN - 9781880653531
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 513
EP - 517
BT - The Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
ER -