World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

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

Samuli Helama publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Samuli Helama sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 194 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Samuli Helama D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Samuli Helama sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 47 D-Index — 42nd percentile

42% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

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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