Accurate understanding of lake water dynamic changes is beneficial to sustainable utilization of water resources and maintenance of ecological balance. Lake change is sensitively reflective of climate and environment change. This study chooses plateau lake and plain lake as the study area, and uses Landsat TM/ETM+/OLI and meteorological data as data source. Based on the Google Earth Engine platform, lake areas are extracted using NDWI method, and lake morphological characteristics are analyzed. The model between climate factors and lake area is established and analyzed in sections according to the difference of lake change trend. The results indicate that the morphological characteristic index of the plateau lakes changes little, but that of the plain lakes changes greatly. Precipitation in the plain lakes fluctuates more violently than that in the plateau lakes. The temperature fluctuation in the plateau lakes is larger than that in the plain lakes.

中文翻译：

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基于Google Earth Engine平台的高原平原湖泊时空演化及气候驱动因素

准确了解湖泊水体动态变化有利于水资源可持续利用和维护生态平衡。湖泊变化敏感地反映了气候和环境的变化。本研究选择高原湖泊和平原湖泊作为研究区域，采用Landsat TM/ETM+/OLI和气象数据作为数据源。基于Google Earth Engine平台，采用NDWI方法提取湖泊面积，并分析湖泊形态特征。根据湖泊变化趋势的差异，建立了气候因素与湖泊面积的模型，并进行分段分析。结果表明，高原湖泊形态特征指标变化较小，而平原湖泊形态特征指标变化较大。平原湖泊降水量波动较高原湖泊剧烈。高原湖泊的气温波动比平原湖泊大。