文章基本信息

标题：Thermal structure and circulation in Lake Chapala, Mexico
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作者：David Avalos-Cueva ; Anatoliy Filonov ; Iryna Tereshchenko 等
期刊名称：Journal of limnology
印刷版ISSN：1129-5767
电子版ISSN：1723-8633
出版年度：2016
卷号：75
期号：s1
页码：137-143
DOI：10.4081/jlimnol.2016.1430
出版社：Istituto italiano di idrobiologia
摘要：This study analyzed and discussed the instrumental measurements of temperature and currents made on January 10, 2007, in Lake Chapala. We received new data on the formation of the thermocline. It is shown that the thermocline of the lake is formed only in the daytime and in a top-heated 0.5-1.0 m layer. The vertical temperature gradient reaches 2.5°C in the first meter, and the spatial average temperature across the lake showed that the northern end of the lake is, on average, 1°C warmer than the southern end. We numerically modelled the currents in the lake for the dry season using the HAMSOM 2D hydrodynamic model. The simulation results are in good agreement with the acoustic Doppler current profiler ADCP measurements. In the dry season, two gyres were found: a cyclonic gyre in the eastern part and an anticyclonic gyre in the western part.
关键词：Lake Chapal;HAMSOM model;current pattern;temperature variability;water column stratification.