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Environmental Sciences

D-Index
47
Citations
7253
World Ranking
5869
National Ranking
89

Overview

Samuli Helama is affiliated with the Natural Resources Institute Finland in Finland. Their scientific contributions focus primarily on Earth and Planetary Sciences and Environmental Science. Within these fields, their work emphasizes several subfields including Atmospheric Science, Global and Planetary Change, Ecology, Nature and Landscape Conservation, and Astronomy and Astrophysics.

Their research extensively covers topics such as tree-ring climate responses, plant water relations and carbon dynamics, geology and paleoclimatology research, climate variability and models, forest ecology and management, geomagnetism and paleomagnetism studies, and remote sensing in agriculture.

Samuli Helama has published numerous papers in notable academic journals. Selected recent papers include:

  • Forest carbon sink neutralized by pervasive growth-lifespan trade-offs, 2020, Nature Communications
  • The influence of decision-making in tree ring-based climate reconstructions, 2021, Nature Communications
  • Recurrent transitions to Little Ice Age-like climatic regimes over the Holocene, 2021, Climate Dynamics
  • Climatic, weather, and socio-economic conditions corresponding to the mid-17th-century eruption cluster, 2022, Climate of the Past
  • A Single-Year Cosmic Ray Event at 5410 BCE Registered in 14C of Tree Rings, 2021, Geophysical Research Letters

Frequent co-authors in their publications include:

  • M. Oinonen
  • Pekka Nöjd
  • Laura Arppe
  • Jari Holopainen
  • Harri Mäkinen

The scientist's work appears regularly in several key publication venues, such as:

  • Nature Communications
  • The Holocene
  • Geophysical Research Letters
  • Dendrochronologia
  • Quaternary Geochronology

Best Publications

  • Old World megadroughts and pluvials during the Common Era

    Edward R. Cook;Richard Seager;Yochanan Kushnir;Keith R. Briffa

  • Last millennium Northern Hemisphere summer temperatures from tree rings: Part I: the long term context

    Rob Wilson;Rob Wilson;Kevin Anchukaitis;Kevin Anchukaitis;Keith R. Briffa;Ulf Büntgen

  • Dark Ages Cold Period: A literature review and directions for future research

    Samuli Helama;Phil D Jones;Phil D Jones;Keith R Briffa

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

    Kevin J. Anchukaitis;Kevin J. Anchukaitis;Rob Wilson;Rob Wilson;Keith R. Briffa;Ulf Büntgen;Ulf Büntgen

  • Forest carbon sink neutralized by pervasive growth-lifespan trade-offs.

    R. J. W. Brienen;L. Caldwell;L. Duchesne;S. Voelker

  • Detection of climate signal in dendrochronological data analysis: a comparison of tree-ring standardization methods

    S. Helama;M. Lindholm;M. Timonen;M. Eronen

  • The supra-long Scots pine tree-ring record for Finnish Lapland: Part 2, interannual to centennial variability in summer temperatures for 7500 years

    Samuli Helama;Markus Lindholm;Mauri Timonen;Jouko Meriläinen

  • Multicentennial megadrought in northern Europe coincided with a global El Niño–Southern Oscillation drought pattern during the Medieval Climate Anomaly

    Samuli Helama;Jouko Meriläinen;Heikki Tuomenvirta

  • The influence of decision-making in tree ring-based climate reconstructions

    Ulf Büntgen;Kathy Allen;Kathy Allen;Kevin J. Anchukaitis;Dominique Arseneault

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

    R. J. W. Brienen;E. Gloor;S. Clerici;R. Newton

  • Regional curve standardization: State of the art

    Samuli Helama;Thomas M. Melvin;Keith R. Briffa

  • Temperature-related birth sex ratio bias in historical Sami: warm years bring more sons

    Samuli Helle;Samuli Helama;Jukka Jokela;Jukka Jokela

  • Sub-Milankovitch solar forcing of past climates: Mid and late Holocene perspectives

    Samuli Helama;Marc Macias Fauria;Kari Mielikäinen;Mauri Timonen

  • Summer temperature variations in Lapland during the Medieval Warm Period and the Little Ice Age relative to natural instability of thermohaline circulation on multi-decadal and multi-centennial scales†

    Samuli Helama;Mauri Timonen;Jari Holopainen;Maxim G. Ogurtsov

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

    Hans W. Linderholm;Marie Nicolle;Pierre Francus;Konrad Gajewski

  • Oak decline in Helsinki portrayed by tree-rings, climate and soil data

    S. Helama;A. Läänelaid;J. Raisio;H. Tuomenvirta

  • Multicentennial Ring-Width Chronologies of Scots Pine Along a North–South Gradient Across Finland

    Samuli Helama;Markus Lindholm;J. O. U. K. O. Meriläinen;Mauri Timonen

  • Unprecedented low twentieth century winter sea ice extent in the Western Nordic Seas since A.D. 1200

    M. Macias Fauria;A. Grinsted;A. Grinsted;S. Helama;J. Moore;J. Moore;J. Moore

  • Evolutionary ecology of human birth sex ratio under the compound influence of climate change, famine, economic crises and wars.

    Samuli Helle;Samuli Helama;Kalle Lertola

  • Extracting long-period climate fluctuations from tree-ring chronologies over timescales of centuries to millennia

    Samuli Helama;Mauri Timonen;Markus Lindholm;Jouko MeriläInen

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

    Heli Maaria Huhtamaa;Heli Maaria Huhtamaa;Samuli Helama

Frequent Co-Authors

Matti Eronen
Matti Eronen University of Helsinki
Timo Partonen
Timo Partonen Finnish Institute for Health and Welfare (THL)
Bernd R. Schöne
Bernd R. Schöne Johannes Gutenberg University of Mainz
Rob Wilson
Rob Wilson University of St Andrews
Keith R. Briffa
Keith R. Briffa University of East Anglia
Heikki Tuomenvirta
Heikki Tuomenvirta Finnish Meteorological Institute
Harri Mäkinen
Harri Mäkinen Natural Resources Institute Finland
Ulf Büntgen
Ulf Büntgen University of Cambridge
Nicole Davi
Nicole Davi Columbia University
Högne Jungner
Högne Jungner University of Helsinki

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