Globally distributed lake surface water temperatures collected in situ and by satellites; 1985-2009

Global environmental change has influenced lake surface temperatures, a key driver of ecosystem structure and function. Recent studies have suggested significant warming of water temperatures in individual lakes across many different regions around the world. However, the spatial and temporal coherence associated with the magnitude of these trends remains unclear. Thus, a global dataset of water temperature is required to understand and synthesize global, long-term trends in surface water temperatures of inland bodies of water. We assembled a database of summer lake surface temperatures for 291 lakes collected in situ and/or by satellites for the period 1985-2009. In addition, corresponding climatic drivers (air temperatures, solar radiation, and cloud cover) and geomorphometric characteristics (latitude, longitude, elevation, lake surface area, maximum depth, mean depth, and volume) that influence lake surface temperatures were compiled for each lake. This unique dataset offers an invaluable baseline perspective on global-scale lake thermal conditions as environmental change continues. This dataset accompanies a data publication in the journal Scientific Data

全球环境变化已对湖泊表层水温产生影响，而水温是生态系统结构与功能的关键驱动因素。近期研究表明，全球多个不同区域的单个湖泊水温均出现了显著上升趋势。然而，此类升温趋势幅度的时空一致性仍尚不明确。因此，亟需构建全球水温数据集，以解析并综合内陆水体表层水温的全球长期变化趋势。本研究汇编了1985-2009年间291个湖泊的夏季表层水温数据，数据来源包括原位（in situ）实测与/或卫星遥感获取。此外，本研究还为每个湖泊整理了影响其表层水温的对应气候驱动因子（气温、太阳辐射与云量）以及地貌形态特征（纬度、经度、海拔、湖泊表面积、最大水深、平均水深与水体容积）。本独特数据集为全球环境变化持续背景下的湖泊热状况提供了极为珍贵的基准视角。本数据集配套发表于《Scientific Data》期刊的一篇数据论文。