Method for reconstructing the monthly mean water transparencies for the northwestern part of the Black Sea as an example
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- 作者：A. S. Lubkov ; E. N. Voskresenskaya ; A. S. Kukushkin
- 关键词：transparency ; neural networks ; river runoff ; hydro meteorological conditions ; Black Sea
- 刊名：Atmospheric and Oceanic Optics
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：29
- 期：5
- 页码：457-464
- 全文大小：540 KB
- 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Applied Optics, Optoelectronics and Optical Devices
Russian Library of Science - 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
- ISSN：2070-0393
- 卷排序：29
文摘
A model based on neural networks with a teacher is suggested to reconstruct the data of observations of hydrophysical parameters. The indices of global climate oscillations in the ocean–atmosphere system were used as input signals for the model. The processes of model training and adaptation, permitting the most accurate solution of the modeling problem, is described. A comparison of model-predicted monthly mean of the Danube runoff volumes with observational data showed their good agreement. Gaps in data of observations of the water transparency (visibility depth of a white disk) in different years are filled by reconstructed data. A close correspondence in absolute value between reconstructed and measured visibility depths of the white disk is reported. Some features of interannual variations in reconstructed data on water transparency, caused by both climatic factors during 1950–1962 and changes in the chlorophyll а concentration during 1998–2010, were revealed.