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首页> 外文会议>2014 IEEE/OES Baltic International Symposium : Measuring and modeling of multi-scale interactions in the marine environment: Book of abstracts >Satellite altimetry of large lakes of the Baltic Basin
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Satellite altimetry of large lakes of the Baltic Basin

机译：波罗的海盆地大湖的卫星测高仪

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摘要

Variability of the water level of largest lakes in the Baltic Basin is characterized by alternating periods of rise and drop according to the altimeteric measurements of TOPEX/Poseidon and Jason-1/2 satellites. Water level was calculated with the use of an algorithm of regional adaptive retracking for the Lakes Ilmen, Ladoga. Onega and Peipus. Applications of this algorithm considerably increase the amount of actual data records and significantly improve the accuracy of water level evaluation. According to the results, temporal variability of the Lake Ilmen, the Lake Ladoga and the Lake Piepus level is characterized by a wave with a period of 4–5 years and the Lake Onega level we found a wave with a period of 15 years. During the period from 1993 to 2011 lakes level was rising at a rate of 1.17±0.95 cm/yr for the Lakes Il‘men’, 0.24±0.10 cm/yr — for the Lake Ladoga, 1.39±0.18 cm/yr — for the Lake Piepus and 0.18±0.09 cm/yr — for the Lake Onega.
机译：根据TOPEX / Poseidon和Jason-1 / 2卫星的高​​度测量，波罗的海盆地最大湖泊的水位变化具有上升和下降的交替时期。水位是通过使用拉多加伊尔门湖区域自适应追踪算法来计算的。 Onega和Peipus。该算法的应用大大增加了实际数据记录的数量，并大大提高了水位评估的准确性。根据结果​​，伊尔门湖，拉多加湖和皮耶普斯湖水位的时间变化特征是波浪周期为4-5年，而奥涅加湖水平面我们发现波浪周期为15年。在1993年至2011年期间，伊尔门湖的水位以1.17±0.95厘米/年的速度增长，拉多加湖为0.24±0.10厘米/年，而拉多加湖为1.39±0.18厘米/年。皮耶普斯湖和0.18±0.09厘米/年—奥涅加湖。

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