An observational campaign was carried out in the hypersaline Crater Lake of Isabel Island to explain the main factors of its hydrodynamics. Wind, temperature and relative humidity time series data were obtained from a weather station installed on the island, sea level atmospheric pressure data were obtained from North American Regional Reanalysis data from which, the seasonal pattern and diurnal breezes can be observed. CTD (Conductivity, Temperature, Depth device) surveys were conducted to analyze the hydrography, and a spectral analysis of temperature time series derived from a chain of thermistors anchored inside the volcanic lake was performed. The results show that the maximum temperature is found not in the first layers of water but at a depth of 1.8 m at 37.9 °C; while from 4 m of depth to the bottom, the temperature remains constant at 27 °C. The lower density water from rain flows into the lake, covering the surface layer of the lake and maintaining this temperature profile. The thermal changes in the first three meters of depth are due to the atmospheric influence and diurnal solar radiation and some strong wind events. To confirm this information, a calculation of heat fluxes through the lake surface was performed. Changes at greater depths are a consequence of the variations in the seasonal effects on the water column.

在伊莎贝尔岛的高盐度火山口湖开展了一项观测活动，以解释其水动力的主要因素。风、温度和相对湿度时间序列数据来自安装在岛上的气象站，海平面气压数据来自北美区域再分析数据，从中可以观察到季节模式和昼夜风。进行了 CTD（电导率、温度、深度装置）调查以分析水文，并对从固定在火山湖内的热敏电阻链得出的温度时间序列进行光谱分析。结果表明，最高温度不在第一层水中，而是在 1.8 m 深处，温度为 37.9 °C；而从 4 m 深到底部，温度保持恒定在 27 °C。来自雨水的密度较低的水流入湖中，覆盖湖的表层并保持这种温度分布。前三米深度的热变化是由于大气影响和昼夜太阳辐射以及一些强风事件。为了确认这一信息，我们对通过湖面的热通量进行了计算。更深的变化是季节性对水柱影响变化的结果。对通过湖面的热通量进行了计算。更深的变化是季节性对水柱影响变化的结果。对通过湖面的热通量进行了计算。更深的变化是季节性对水柱影响变化的结果。