摘要：In recent decades, lakes have experienced unprecedented ice loss with widespread ramifcations for winter ecological processes . The rapid loss of ice, resurgence of winter biology, and proliferation of remote sensing technologies, presents a unique opportunity to integrate disciplines to further understand the broad spatial and temporal patterns in ice loss and its consequences . Here, we summarize ice phenology records for 78 lakes in 12 countries across North America, Europe, and Asia to permit the inclusion and harmonization of in situ ice phenology observations in future interdisciplinary studies . These ice records represent some of the longest climate observations directly collected by people . We highlight the importance of applying the same defnition of ice-on and ice-of within a lake across the time- series, regardless of how the ice is observed, to broaden our understanding of ice loss across vast spatial and temporal scales .
