Sea level rise during past 40 years determined from satellite and in situ observations
Sea level rise during past 40 years determined from satellite and in situ observations
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DOI：
10.1126/science.1063556
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发表时间：
2001-10-26
期刊：
影响因子：
56.9
通讯作者：
Le Provost, C
中科院分区：
文献类型：
--
作者：
Cabanes, C;Cazenave, A;Le Provost, C
Topex/Poseidon卫星在1993-98年期间观测到的全球平均海平面每年上升3.2+/-0.2毫米，这完全可以用海洋的热膨胀来解释。在1955-96年期间，根据验潮仪数据计算的海平面上升与在相同地点计算的热膨胀很好地吻合。然而，我们发现，在通常的验潮仪位置对温差海平面进行二次抽样会导致温差海平面上升，是“真正的”全球平均值的两倍。可能的结果是，根据验潮仪记录估计的20世纪海平面上升可能被高估了。
The 3.2 +/- 0.2 millimeter per year global mean sea level rise observed by the Topex/Poseidon satellite over 1993-98 is fully explained by thermal expansion of the oceans. For the period 1955-96, sea level rise derived from tide gauge data agrees well with thermal expansion computed at the same locations. However, we find that subsampling the thermosteric sea level at usual tide gauge positions leads to a thermosteric sea level rise twice as large as the "true" global mean. As a possible consequence, the 20th century sea level rise estimated from tide gauge records may have been overestimated.