Samuli Helama

Senior Scientist
  • Phone number +358295325047
  • Email address samuli.helama@luke.fi
  • Address Ounasjoentie 6 96200 ROVANIEMI

Exact dating of the Meghalayan lower boundary based on high-latitude tree-ring isotope chronology

Refereed scientific publications
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2019

Author Correction: Solar superstorm of AD 774 recorded subannually by Arctic tree rings

Other publications
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2019

Historical trends in spring ice breakup for the Aura River in Southwest Finland, AD 1749–2018

Refereed scientific publications
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2019

Frost rings in 1627 BC and AD 536 in subfossil pinewood from Finnish Lapland

Refereed scientific publications
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2019

Halistatt Cycle Subarctic Fennoscandian Temperature and Its Possible Link with Solar Activity

Refereed scientific publications
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2018

Solar superstorm of AD 774 recorded subannually by Arctic tree rings

Refereed scientific publications
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2018

A 7.5 ka chronology of stable carbon isotopes from tree rings with implications for their use in palaeo-cloud reconstruction

Refereed scientific publications
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2018

Isoscapes of plant δ13C in the northern forests: Addressing the question of inter-tree and -site variability in Pinus sylvestris L. tree rings from Finnish Lapland

Refereed scientific publications
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2018

An invertebrate macrofauna from an early Holocene fjord-delta system, North Norway

Refereed scientific publications
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2018

Arctic hydroclimate variability during the last 2000 years : current understanding and research challenges

Refereed scientific publications
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2018

Volcanic dust veils from sixth century tree-ring isotopes linked to reduced irradiance, primary production and human health

Refereed scientific publications
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2018

Digitizing the plant phenological dataset (1750–1875) from collections of Professor Adolf Moberg:Towards the development of historical climate records

Refereed scientific publications
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2018

Arctic moistening provides negative feedbacks to riparian plants

Refereed scientific publications
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2018

Multiscale variation in drought controlled historical forest fire activity in the boreal forests of eastern Fennoscandia

Refereed scientific publications
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2018

Reconstruction of precipitation variability in Estonia since the eighteenth century, inferred from oak and spruce tree rings

Refereed scientific publications
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2018

Erratum to: Connecting potential frost damage events identified from meteorological records to radial growth variation in Norway spruce and Scots pine

Refereed scientific publications
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2017

An overview of climate variability in Finland during the Common Era

Refereed scientific publications
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2017

Connecting potential frost damage events identified from meteorological records to radial growth variation in Norway spruce and Scots pine

Refereed scientific publications
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2017

Tree height strongly affects estimates of water-use efficiency responses to climate and CO2 using isotopes

Refereed scientific publications
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2017

Distant impact: tropical volcanic eruptions and climate-driven agricultural crises in seventeenth-century Ostrobothnia, Finland

Refereed scientific publications
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2017

Tree-ring investigation of floor beams from the 18th-century church of Ylivieska

Refereed scientific publications
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2017

Matti Eronen, 1944‒2016: standing on the shoulders of the rising land

Other publications
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2017

Something old, something new, something borrowed: New insights to human-environment interaction in medieval Novgorod inferred from tree rings

Refereed scientific publications
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2017

Last millennium Northern Hemisphere summer temperatures from tree rings: Part II, spatially resolved reconstructions

Refereed scientific publications
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2017