A high resolution account of Icelandic sea ice over the last millennium has been constructed using a novel proxy based on the presence in sediments of a biomarker (IP25) produced by sea ice algae. Comparison with historical sea ice records demonstrates a strong correlation between documented sea ice Occurrences and the IP25 proxy. An excellent agreement is also observed between the IP25 record and a diatom-based sea surface temperature reconstruction obtained from the same core and the Crowley and Lowery Northern Hemisphere temperature reconstruction. Using this approach, we provide new historical sea ice data for periods where records are scarce or absent and evidence for abrupt changes to sea ice and/or climate conditions around Iceland during the Little Ice Age. (C) 2008 Elsevier B.V. All rights reserved.
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Key Laboratory of Geographic Information Science, East China Normal UniversityKey Laboratory of Geographic Information Science, East China Normal University
JIANG Hui
LIU YanGuang
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Key Laboratory of Marine Sedimentology and Environmental Geology,First Institute of Oceanography,State Oceanic AdministrationKey Laboratory of Geographic Information Science, East China Normal University
LIU YanGuang
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ZHAO MeiXun
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LI DongLing
CHEN ZhenLou
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Key Laboratory of Geographic Information Science, East China Normal UniversityKey Laboratory of Geographic Information Science, East China Normal University
CHEN ZhenLou
ZHAO Yun
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Key Laboratory of Geographic Information Science, East China Normal UniversityKey Laboratory of Geographic Information Science, East China Normal University
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E China Normal Univ, Key Lab Geog Informat Sci, Shanghai 200062, Peoples R ChinaE China Normal Univ, Key Lab Geog Informat Sci, Shanghai 200062, Peoples R China
Jiang Hui
Liu YanGuang
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State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R ChinaE China Normal Univ, Key Lab Geog Informat Sci, Shanghai 200062, Peoples R China
Liu YanGuang
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Zhao MeiXun
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Li DongLing
Chen ZhenLou
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E China Normal Univ, Key Lab Geog Informat Sci, Shanghai 200062, Peoples R ChinaE China Normal Univ, Key Lab Geog Informat Sci, Shanghai 200062, Peoples R China
Chen ZhenLou
Zhao Yun
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E China Normal Univ, Key Lab Geog Informat Sci, Shanghai 200062, Peoples R ChinaE China Normal Univ, Key Lab Geog Informat Sci, Shanghai 200062, Peoples R China