ABSTRACT

The thermal regimes of lakes are important for understanding the functions and services of lake ecosystems. However, continuous lake temperature monitoring across the Tibetan Plateau is sparse, which inhibits verification of modeling results and also in-depth understanding of the lake thermal and mixing dynamics in this region. Here, we present the results of continuous temperature monitoring of a dimictic lake, Bangong Co, during 2012–2014, and a meromictic lake, Dagze Co, during 2012–2015, to gain insight into the differences in their thermal dynamics and to understand the factors influencing these differences. No evident changes in the thermal and mixing regimes were observed at the two lakes during the observational period. However, the thermal structure changed in different hydrological years. The air temperature changes and associated glacier melt possibly contribute to changes in the water temperature for Bangong Co, while heat transfer related to wind speed is vital for Dagze Co. Developing in-depth knowledge necessitates long-term monitoring data to confirm the influence of various individual climatic parameters.

摘要

湖泊的热状态对于了解湖泊生态系统的功能和服务非常重要。然而，整个青藏高原的连续湖泊温度监测很少，这妨碍了对模型结果的验证，也无法深入了解该地区的湖泊热量和混合动力。在这里，我们介绍了2012-2014年间的一个类比克湖Bangong Co和2012-2015年间的一个盘状湖Dagze Co的连续温度监测的结果，以了解它们的热力学差异并了解它们之间的关系。影响这些差异的因素。在观测期间，在两个湖泊中没有观察到热态和混合态的明显变化。但是，热结构在不同的水文年中发生了变化。