| A UNIFIED ISOSTATIC DATUM AND ITS APPLICATION IN SEA LEVEL CHANGE RESEARCH |
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| 作者姓名： | 黄立人 杨国华 胡惠民 马青 |
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| 作者单位： | First Land Deformation Monitoring Centre，S.S.B.，Tianjin 300180，PRC，First Land Deformation Monitoring Centre，S.S.B.，Tianjin 300180，PRC，First Land Deformation Monitoring Centre，S.S.B.，Tianjin 300180，PRC，First Land Deformation Monitoring Centre，S.S.B.，Tianjin 300180，PRC |
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| 基金项目： | Project sponsored jointly by the National Natural Science Foundation of China and the Chinese Academy of Sciences. |
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| 摘 要： | The necessity of establishing a Unified Isostatic Datum (UID) for studying the sea levelchanges along the coast of China is discussed in this paper. A so-called Coastal Land Ver-tical Movement Isostatic Datum (CLVMID) is established based on precise releveling dataperformed from the 1950s to 1980s and some coniunction releveling data with tide stations.All the data consists of about 250,000 km releveling lines and covers the whole mainland ofChina. As examples, datum corrections for sea level changes derived from two tide stationsand recent crustal vertical movement in the Yangtse Delta area relative to the datum aregiven to explain the significance of the isostatic datum in the research of the sea levelchange trend.
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A UNIFIED ISOSTATIC DATUM AND ITS APPLICATION IN SEA LEVEL CHANGE RESEARCH |
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| HUANG LI-REN,YANG GUO-HUA,HU HUI-MIN,MA QING First Land Deformation Monitoring Centre,S.S.B.,Tianjin ,PRC.A UNIFIED ISOSTATIC DATUM AND ITS APPLICATION IN SEA LEVEL CHANGE RESEARCH[J].Science in China(Chemistry),1992(11). |
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| Authors: | HUANG LI-REN YANG GUO-HUA HU HUI-MIN MA QING First Land Deformation Monitoring Centre SSB Tianjin PRC |
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| Affiliation: | HUANG LI-REN,YANG GUO-HUA,HU HUI-MIN,MA QING First Land Deformation Monitoring Centre,S.S.B.,Tianjin 300180,PRC |
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| Abstract: | The necessity of establishing a Unified Isostatic Datum (UID) for studying the sea level
changes along the coast of China is discussed in this paper. A so-called Coastal Land Ver-
tical Movement Isostatic Datum (CLVMID) is established based on precise releveling data
performed from the 1950s to 1980s and some coniunction releveling data with tide stations.
All the data consists of about 250,000 km releveling lines and covers the whole mainland of
China. As examples, datum corrections for sea level changes derived from two tide stations
and recent crustal vertical movement in the Yangtse Delta area relative to the datum are
given to explain the significance of the isostatic datum in the research of the sea level
change trend. |
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| Keywords: | isostatic datum sea level change crustal movement leveling tide gauging |
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