Quantifying the evaporation amounts of 75 high-elevation large dimictic lakes on the Tibetan Plateau
Quantifying the evaporation amounts of 75 high-elevation large dimictic lakes on the Tibetan Plateau
复制标题
青藏高原75个高海拔大型混晶湖泊蒸发量的量化
DOI：
10.1126/sciadv.aay8558
复制
发表时间：
2020-06-01
期刊：
影响因子：
13.6
通讯作者：
Ma, Weiqiang
中科院分区：
文献类型：
--
作者：
Wang, Binbin;Ma, Yaoming;Ma, Weiqiang
湖泊蒸发影响流域水循环，是青藏高原内陆湖泊水资源损失的重要因素。由于资料的缺乏，已公布的湖泊蒸发值不一致，其空间分布也从未报道过。提出了一个合理的假设，在无冰季节的能量平衡，我们探讨了多年（2003-2016年）平均冰物候和蒸发量的75个大型双相湖的气象和卫星数据相结合。蒸发量在空间分布上表现出很大的变异性，南部的蒸发量较高。海拔较高、面积较小、纬度较高的湖泊，其无冰期较短，蒸发量较低。75个研究湖泊的总蒸发水量约为29.4 +/- 1.2 km（3）年（-1），所有高原湖泊的总蒸发水量约为51.7 +/- 2.1 km（3）年（-1）。
Lake evaporation can influence basin-wide hydrological cycles and is an important factor in loss of water resources in endorheic lakes of the Tibetan Plateau. Because of the scarcity of data, published lake evaporation values are inconsistent, and their spatial distribution has never been reported. Presenting a plausible hypothesis of energy balance during the ice-free seasons, we explored the multiyear (2003-2016) average ice phenology and evaporation amounts of 75 large dimictic lakes by using a combination of meteorological and satellite data. Evaporation amounts show large variability in spatial distribution, with a pattern of higher values in the south. Lakes with higher elevation, smaller area, and higher latitude are generally associated with a shorter ice-free season and lower evaporation. The total evaporated water amounts have values of approximately 29.4 +/- 1.2 km(3) year(-1) for the 75 studied lakes and 51.7 +/- 2.1 km(3) year(-1) for all plateau lakes included.