Snow Cover—Observations, Processes, Changes, and Impacts on Northern Hydrology
Snow Cover—Observations, Processes, Changes, and Impacts on Northern Hydrology
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DOI：
10.1007/978-3-030-50930-9_3
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Ross D. Brown;P. Marsh;S. Déry;Daqing Yang
中科院分区：
文献类型：
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作者：
Ross D. Brown;P. Marsh;S. Déry;Daqing Yang
本章介绍了北极陆地积雪和水文的概述，从大尺度积雪覆盖范围和雪水当量（SWE）的变化和变化的因素开始，然后移动到当地尺度的过程和相互作用的讨论负责北极积雪的空间分布和物理特性，最显着的吹雪和植被相互作用的作用。融雪和径流过程随后覆盖，特别注意液态水渗透通过积雪和土壤层。本章最后概述了北极积雪观测系统，北极积雪覆盖范围和SWE的当前和预测趋势的估计，以及积雪覆盖预计变化的潜在水文影响。本章的一个关键信息是，北极积雪和雪水文对气候变化的反应是复杂的，因为耦合的雪-土壤-植被系统内有许多联系和反馈。
This chapter presents an overview of Arctic terrestrial snow cover and hydrology starting with the factors contributing to variability and change in large-scale snow cover extent and snow water equivalent (SWE), then moves to the local scale for a discussion of the processes and interactions responsible for the spatial distribution and physical properties of Arctic snow cover, most notably the roles of blowing snow and vegetation interactions. Snowmelt and runoff processes are subsequently covered with particular attention on liquid water infiltration through the snowpack and soil layers. The chapter concludes with an overview of Arctic snow observing systems, estimates of current and projected trends in Arctic snow cover extent and SWE, and potential hydrologic implications of the projected changes in snow cover. A key message from the Chapter is that the response of Arctic snow cover and snow hydrology to a changing climate is complex due to the numerous linkages and feedbacks within the coupled snow–soil–vegetation system.