Satellite Altimetry of the Caspian Sea
Satellite Altimetry of the Caspian Sea
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发表时间：
2006-07
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通讯作者：
A. Kostianoy;S. Lebedev
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作者：
A. Kostianoy;S. Lebedev
里海海平面的振荡是相互关联的水文气象过程的结果，这些过程不仅发生在集水区，而且远远超出集水区（图1）。20世纪70年代中期平均海平面变化趋势的变化，即长期的海平面下降被其快速和显著的上升所取代（图2），是里海自然状况变化的重要指标[1]。因此，海平面监测和海平面变化的长期预报是一项极为重要的任务。本专题介绍的目的是展示应用卫星测高方法调查里海和卡拉-博加兹-戈尔湾不同地区海平面、风速和波高以及伏尔加河水位的季节性和年际变化的结果。这项工作是基于1992-2004年TOPEX/Poseidon和Jason-1数据集。
The oscillations of the Caspian Sea level represent a result of mutually related hydrometeorological processes, which proceed not only in the sea catchment area but also far beyond it (Fig.1). The change in the tendency of the mean sea level variations that occurred in the middle 1970s, when the long-term level fall was replaced by its rapid and significant rise (Fig.2), represents an important indicator of the changes in the natural regime of the Caspian Sea [1]. Therefore, sea level monitoring and long-term forecast of the sea level changes represent an extremely important task. The aim of this presentation is to show the results of application of satellite altimetry methods to the investigation of seasonal and interannual variability of the sea level, wind speed and wave height in different parts of the Caspian Sea and Kara-Bogaz-Gol Bay, and the Volga River level. The work is based on the 1992-2004 TOPEX/Poseidon and Jason-1 data sets.