由卫星测高数据观测到的印度洋海啸波高

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英文篇名：The tsunami wave heights observed by satellite radar altimetry 中文刊名：测绘科学 英文刊名：Science of Surveying and Mapping 作者：文汉江 ; 章传银 英文作者：WEN Han-jiang ; ZHANG Chuan-yin(Chinese Academy of Surveying and Mapping ; Beijing 100039) 中文关键词：海啸 ; 卫星测高 ; JASON1 ; TOPEX/Poseidon ; ENVISAT ; GFO 英文关键词：Tsunami ; radar altimeter ; TOPEX/Poseidon ; JAON-1 ; ENVISAT ; GFO 出版日期：2005-04-20 机构：中国测绘科学研究院,中国测绘科学研究院 北京100039 ,北京100039 年：2005 期：02 出版单位：测绘科学

摘要

本文介绍了利用卫星测高资料测定的印度洋地震引起的海啸波高的研究成果 ,以及卫星测高数据在对海啸灾害进行预测的应用价值。通过卫星雷达测高可观测到沿卫星星下点轨迹的相距几公里的点上的海面高 ,还提供了特别有价值的对海啸波的连续观测结果
About 2 hours after the deadly Sumatra earthquake,the satellites Jason-1 and TOPEX/POSEIDON flew over the Bay of Bengal,and their radar altimeters measured the wave height in deep waters.The wave heights relative to the average height in previous months are shown,a numerical model simulation of the tsunami wavefront at the time of altimeter measurements are also shown in this paper.Meanwhile ENVISAT and GFO also flew over the region after 3 and 7 hours,respectively,the results by using ENVISAT and GFO satellite altimeter data are also shown.From the results,one can clearly see the big tsunami wave height caused by the Sumatra earthquake.In deep water,the tsunami front displaced water 60cm and 40cm above and below normal after 2 hours.The results shows great potential to improve the tsunami prediction model by using the altimeter data.

引文

[1]　NOAAscientistsabletomeasuretsunamiheightfromspace[EB/OL],http://www.noaanews.noaa.gov/stories2005/s2365 htm.
    [2]　Oceansurfacetopographyfromspace[EB/OL].http://sealevel.jpl.nasa.gov/mission/topex.html.
    [3]　Radarsatellitecapturetsunamiwaveheight[EB/OL].http://www.newscientist.com/article.ns?id=dn6854.