中文摘要：

西藏的高原(TP ) 上的普遍的湖是为调查气候和环境变化的珍贵档案，它能在有全球气候系统的 TP 和他们的相互作用上在过去的气候变化的机制上提供必要信息。然而，有在西藏的湖的现代 limnological 过程的深入的调查的缺乏，它妨碍 paleolimnological 记录和湖生态系统继任的理解。在这研究，我们执行了在二个湖， Bangong 公司，在西方的 TP 的一个淡水湖，和 Dagze 公司监视的连续温度，在中央 TP 的一个略有盐味的湖，以便描绘季节的温度可变性的模式，层化，并且混合。为一全部水文学年的温度数据证明 Bangong 公司是一个 dimictic 湖并且 Dagze 公司是一个 meromictic 湖。在公司阻止的 Dagze 的深水里的更高的咸度从完全翻的湖，并且这发现被模拟用一个物理 limnological 模型湖分析器支持。监视的连续的湖水温度为分类西藏的湖，以及理解他们的 paleolimnological 记录和生态系统继任的水文学基础提供基本数据。

英文摘要：

Widespread lakes on the Tibetan Plateau （TP） are valuable archives for investigating climate and environment changes, which could provide essential information on the mechanisms of past climate changes on the TP and their interaction with the global climate systems. However, there is a lack of in-depth investigation of modern limnological processes in the Tibetan lakes, which hampers the understanding of paleolimnological records and lake ecosystem succession. In this study, we performed continuous temperature monitoring at two lakes, Bangong Co, a freshwater lake in the western TP, and Dagze Co, a brackish lake in the central TP, in order to characterize the patterns of seasonal temperature variability, stratification, and mixing. Temperature data for an entire hydrological year demonstrate that Bangong Co is a dimictic lake and that Dagze Co is a meromictic lake. The higher salinity in the deep water at Dagze Co prevents the lake from overturning completely, and this finding is supported by simulations using a physical limnological model Lake Analyzer. Continuous lake water temperature monitoring provides fundamental data for classifying Tibetan lakes, as well as the hydrological basis for understanding their pa- leolimnological records and ecosystem succession.