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| Frost rings in 1627 BC and AD 536 in subfossil pinewood from Finnish Lapland [期刊论文]
Quaternary Science Reviews, 2019-01-01, 204
Helama S.; Saranpää P.; Pearson C.L.; Arppe L.; Holopainen J.; Mäkinen H.; Mielikäinen K.; Nöjd P.; Sutinen R.; Taavitsainen J.-P.; Timonen M.; Uusitalo J.; Oinonen M.
 View/Download：24/0
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| Reconstruction of precipitation variability in Estonia since the eighteenth century, inferred from oak and spruce tree rings [期刊论文]
Climate Dynamics, 2018-01-01, 50 (2018-11-12
Helama S.; Sohar K.; Läänelaid A.; Bijak S.; Jaagus J.
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| Arctic hydroclimate variability during the last 2000 years: Current understanding and research challenges [期刊论文]
Climate of the Past, 2018-01-01, 14 (4
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.
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| Arctic moistening provides negative feedbacks to riparian plants [期刊论文]
Global Change Biology, 2018-01-01, 24 (6
Helama S.; Arppe L.; Mielikäinen K.; Oinonen M.
View/Download：14/0
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| Last millennium Northern Hemisphere summer temperatures from tree rings: Part II, spatially resolved reconstructions [期刊论文]
Quaternary Science Reviews, 2017-01-01, 163
Anchukaitis K.J.; Wilson R.; Briffa K.R.; Büntgen U.; Cook E.R.; D'Arrigo R.; Davi N.; Esper J.; Frank D.; Gunnarson B.E.; Hegerl G.; Helama S.; Klesse S.; Krusic P.J.; Linderholm H.W.; Myglan V.; Osborn T.J.; Zhang P.; Rydval M.; Schneider L.; Schurer A.; Wiles G.; Zorita E.
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| Limited Late Antique cooling [期刊论文]
Nature Geoscience, 2017-01-01, 10 (4
Helama S.; Jones P.D.; Briffa K.R.
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| Last millennium northern hemisphere summer temperatures from tree rings: Part I: The long term context [期刊论文]
Quaternary Science Reviews, 2016-01-01, 134
Wilson R.; Anchukaitis K.; Briffa K.R.; Büntgen U.; Cook E.; D'Arrigo R.; Davi N.; Esper J.; Frank D.; Gunnarson B.; Hegerl G.; Helama S.; Klesse S.; Krusic P.J.; Linderholm H.W.; Myglan V.; Osborn T.J.; Rydval M.; Schneider L.; Schurer A.; Wiles G.; Zhang P.; Zorita E.
View/Download：47/0
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| Testing long-term summer temperature reconstruction based on maximum density chronologies obtained by reanalysis of tree-ring data sets from northernmost Sweden and Finland [期刊论文]
Climate of the Past, 2014-01-01, 10 (4
Matskovsky V.V.; Helama S.
View/Download：13/0
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| Hydroclimatic variations over the last millennium in eastern Finland disentangled by fossil Cladocera [期刊论文]
Palaeogeography, Palaeoclimatology, Palaeoecology, 2013-01-01, 378
Nevalainen L.; Helama S.; Luoto T.P.
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| Cool North European summers and possible links to explosive volcanic eruptions [期刊论文]
Journal of Geophysical Research Atmospheres, 2013-01-01, 118 (12
Jones P.D.; Melvin T.M.; Harpham C.; Grudd H.; Helama S.
View/Download：11/0
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