Climate warming response of mountain lakes affected by variations in snow
Climate warming response of mountain lakes affected by variations in snow
复制标题
积雪变化对高山湖泊气候变暖的响应
DOI：
10.1002/lol2.10099
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发表时间：
2018
影响因子：
7.8
通讯作者：
Kevin Skeen
中科院分区：
文献类型：
--
作者：
S. Sadro;J. Melack;J. Sickman;Kevin Skeen
我们的目标是确定山区湖泊的温度如何响应气候变化，并描述其响应如何通过景观或湖泊形态因子介导。我们的分析结合了1983年至2016年在加州Sierra内华达州高海拔流域的高频气候和湖泊温度数据，以及分散在整个范围内的18个额外湖泊的夏季水温数据。年平均气温在10 - 1年内上升0.63°C，但湖泊温度的变化主要是由降雪量造成的。通过调节冰盖的持续时间和春季融雪的流入量，积雪大小的变化占93%的变化在夏季epilimnetic温度。雪对湖泊温度的影响是通过景观尺度上海拔和湖泊深度的变化来调节的，从而形成了一个可预测的湖泊对气候变暖敏感性的马赛克。
Our objectives were to determine how temperatures in mountain lakes respond to changes in climate and to characterize how their responses are mediated by landscape or lake morphometric factors. Our analysis combines the use of high‐frequency climate and lake temperature data from 1983 to 2016 in a high‐elevation catchment in the Sierra Nevada of California with summer water temperature data from a set of 18 additional lakes scattered throughout the range. Average annual air temperatures warmed at 0.63°C decade−1, but variation in lake temperature was driven primarily by amount of precipitation as snow. By regulating the duration of ice cover and volume of inflowing spring snowmelt, variation in snowpack size accounted for 93% of variation in summer epilimnetic temperatures. The effect of snow on lake temperatures was mediated by variation in elevation and lake depth at landscape scales, creating a predictable mosaic of lake sensitivities to climate warming.
影响因子：
5.2
作者：
O'Reilly, Catherine M.;Sharma, Sapna;Zhang, Guoqing
通讯作者：
Zhang, Guoqing