Holocene lake-based Arctic glacier and ice cap records

This data is supplement to "Arctic glaciers and ice caps through the Holocene: A circumpolar synthesis of lake–based reconstructions" and summarizes 66 lake–based records of Holocene glacier and ice cap variations from seven Arctic regions: Alaska (n=6), Baffin Island, Canada (n=5), glaciers and ice caps (GICs) peripheral to the Greenland Ice Sheet (n=22), Iceland (n=5), the Scandinavian peninsula (n=20), Svalbard (n=7), and the Russian high Arctic (n=2) (plus one non-lake record). For each included lake record, glacier and ice cap status is defined in 100–year intervals from 12–0 kiloannum (ka), where 0 = glacially influenced, and 1 = a smaller than present or absent glacier or ice cap. Arctic–wide, the percent of glaciers and ice caps smaller than present or absent is summarized in 100–year intervals from 12–0 ka. Blank cells indicate time periods with no data available, or when the status of the glacier or ice cap was unknown or ambiguous. We assign each record a unique site identifier. See "Site Information" for additional metadata on each record including: region, site # in regional compilations, original reference(s), lake name, glacier or ice cap name, latitude, and longitude.

本数据集为《全新世北极冰川与冰盖：基于湖泊重建的环极地综合研究》（Arctic glaciers and ice caps through the Holocene: A circumpolar synthesis of lake–based reconstructions）的补充资料，汇总了北极7个区域的66项基于湖泊的全新世冰川与冰盖变化记录：阿拉斯加（n=6）、加拿大巴芬岛（n=5）、格陵兰冰盖周边的冰川与冰盖（glaciers and ice caps, GICs，n=22）、冰岛（n=5）、斯堪的纳维亚半岛（n=20）、斯瓦尔巴群岛（n=7）以及俄罗斯北极高纬地区（n=2），另有1项非湖泊记录。针对每一项纳入的湖泊记录，我们以100年为时间间隔，对12~0千年前（kiloannum, ka）的冰川与冰盖状态进行界定：0代表受冰川作用影响，1代表冰川或冰盖规模小于现今或已消失。在环北极全域尺度上，我们以100年为时间间隔，汇总了12~0千年前规模小于现今或已消失的冰川与冰盖占比。空白单元格代表无可用数据的时段，或冰川与冰盖状态未知、存在歧义的时段。我们为每一项记录分配了唯一的站点标识符。详见“站点信息（Site Information）”部分，可获取每一项记录的补充元数据，包括：所属区域、区域汇编中的站点编号、原始参考文献、湖泊名称、冰川或冰盖名称、纬度与经度。