globalchange  > 影响、适应和脆弱性
DOI: 10.5194/cp-14-473-2018
Scopus记录号: 2-s2.0-85045236055
论文题名:
Arctic hydroclimate variability during the last 2000 years: Current understanding and research challenges
作者: Linderholm H.W.; Nicolle M.; Francus P.; Gajewski K.; Helama S.; Korhola A.; Solomina O.; Yu Z.; Zhang P.; D'Andrea W.J.; Debret M.; Divine D.V.; Gunnarson B.E.; Loader N.J.; Massei N.; Seftigen K.; Thomas E.K.; Werner J.; Andersson S.; Berntsson A.; Luoto T.P.; Nevalainen L.; Saarni S.; Väliranta M.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2018
卷: 14, 期:4
起始页码: 473
结束页码: 514
语种: 英语
Scopus关键词: hydrometeorology ; literature review ; Little Ice Age ; Medieval Warm Period ; moisture ; paleoclimate ; precipitation (climatology) ; simulation ; trend analysis ; Arctic ; Eurasia ; Fennoscandia ; North America
英文摘要: Reanalysis data show an increasing trend in Arctic precipitation over the 20th century, but changes are not homogenous across seasons or space. The observed hydroclimate changes are expected to continue and possibly accelerate in the coming century, not only affecting pan-Arctic natural ecosystems and human activities, but also lower latitudes through the atmospheric and ocean circulations. However, a lack of spatiotemporal observational data makes reliable quantification of Arctic hydroclimate change difficult, especially in a long-term context. To understand Arctic hydroclimate and its variability prior to the instrumental record, climate proxy records are needed. The purpose of this review is to summarise the current understanding of Arctic hydroclimate during the past 2000 years. First, the paper reviews the main natural archives and proxies used to infer past hydroclimate variations in this remote region and outlines the difficulty of disentangling the moisture from the temperature signal in these records. Second, a comparison of two sets of hydroclimate records covering the Common Era from two data-rich regions, North America and Fennoscandia, reveals inter- and intra-regional differences. Third, building on earlier work, this paper shows the potential for providing a high-resolution hydroclimate reconstruction for the Arctic and a comparison with last-millennium simulations from fully coupled climate models. In general, hydroclimate proxies and simulations indicate that the Medieval Climate Anomaly tends to have been wetter than the Little Ice Age (LIA), but there are large regional differences. However, the regional coverage of the proxy data is inadequate, with distinct data gaps in most of Eurasia and parts of North America, making robust assessments for the whole Arctic impossible at present. To fully assess pan-Arctic hydroclimate variability for the last 2 millennia, additional proxy records are required. © Author(s) 2018.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109576
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, 40530, Sweden; Normandie Univ, UNIROUEN, UNICAEN, CNRS, M2C, Rouen, 76000, France; Institut National de la Recherche Scientifique, Centre Eau Terre Environnement, Québec, QC G1K 9A9, Canada; Département de Géographie, Université d'Ottawa, Ottawa, ON K1N 6N5, Canada; Natural Resources Institute Finland, Rovaniemi, Finland; Environmental Change Research Unit (ECRU), Department of Environmental Sciences, University of Helsinki, Helsinki, 00014, Finland; Institute of Geography, Russian Academy of Sciences, Moscow, 119017, Russian Federation; Department of Earth and Environmental Sciences, Lehigh University, Bethlehem, PA 18015-3001, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States; Norwegian Polar Institute, Fram Centre, Tromsø, 9296, Norway; Department of Physical Geography, Stockholm University, Stockholm, 10691, Sweden; Department of Geography, Swansea University, Swansea, SA2 8PP, United Kingdom; Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, 1348, Belgium; Department of Geology, University at Buffalo, Buffalo, NY 14260, United States; Department of Earth Science, University of Bergen, Bergen, 5020, Norway; Department of Environmental Sciences, University of Helsinki, Lahti, 15140, Finland; Department of Geography and Geology, University of Turku, Turun yliopisto, 20014, Finland; Department of Mathematics and Statistics, University of Tromsø, Arctic University of Norway9037, Norway; GEOTOP Research Center, Montréal, QC, Canada

Recommended Citation:
Linderholm H.W.,Nicolle M.,Francus P.,et al. Arctic hydroclimate variability during the last 2000 years: Current understanding and research challenges[J]. Climate of the Past,2018-01-01,14(4)
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