Rapid and highly variable warming of lake surface waters around the globe
Rapid and highly variable warming of lake surface waters around the globe
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DOI：
10.1002/2015gl066235
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发表时间：
2015-12-28
影响因子：
5.2
通讯作者：
Zhang, Guoqing
中科院分区：
文献类型：
--
作者：
O'Reilly, Catherine M.;Sharma, Sapna;Zhang, Guoqing
在这第一次全球原位和卫星来源的湖泊数据合成中，我们发现，1985年至2009年期间，湖泊夏季地表水温度迅速上升（全球平均值=0.34摄氏度十年（-1））。我们的分析表明，地表水变暖率取决于气候和当地特征的组合，而不仅仅是湖泊的位置，导致了一个违反直觉的结果，即湖泊变暖的区域一致性是例外，而不是规则。最迅速变暖的湖泊在地理上分布广泛，它们的变暖与不同气候因素之间的相互作用有关，从温度和太阳辐射增加而云量减少（0.72摄氏度十年（-1））的季节性冰封湖泊到气温和太阳辐射增加（0.53摄氏度十年（-1））的无冰湖泊。这里观察到的普遍和快速变暖表明，迫切需要将气候影响纳入湖泊脆弱性评估和适应努力。
In this first worldwide synthesis of in situ and satellite-derived lake data, we find that lake summer surface water temperatures rose rapidly (global mean=0.34 degrees C decade(-1)) between 1985 and 2009. Our analyses show that surface water warming rates are dependent on combinations of climate and local characteristics, rather than just lake location, leading to the counterintuitive result that regional consistency in lake warming is the exception, rather than the rule. The most rapidly warming lakes are widely geographically distributed, and their warming is associated with interactions among different climatic factorsfrom seasonally ice-covered lakes in areas where temperature and solar radiation are increasing while cloud cover is diminishing (0.72 degrees C decade(-1)) to ice-free lakes experiencing increases in air temperature and solar radiation (0.53 degrees C decade(-1)). The pervasive and rapid warming observed here signals the urgent need to incorporate climate impacts into vulnerability assessments and adaptation efforts for lakes.