World's Best Scientists 2026 revealed!

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Earth Science

D-Index
32
Citations
3148
World Ranking
8778
National Ranking
636

Overview

Johannes Freitag is affiliated with the Alfred Wegener Institute for Polar and Marine Research in Germany. Their research primarily focuses on Earth and Planetary Sciences, with significant contributions in Environmental Science. The main subfields of their work include Atmospheric Science, Ecology, Global and Planetary Change, Pulmonary and Respiratory Medicine, and Management, Monitoring, Policy and Law.

The principal topics covered in Freitag's research are:

  • Cryospheric studies and observations
  • Geology and Paleoclimatology Research
  • Polar Research and Ecology
  • Climate change and permafrost
  • Winter Sports Injuries and Performance
  • Landslides and related hazards
  • Atmospheric and Environmental Gas Dynamics

Freitag has recently contributed to a selection of scientific papers including:

  • "Modern temperatures in central-north Greenland warmest in past millennium," 2023, Nature
  • "Improved estimates of preindustrial biomass burning reduce the magnitude of aerosol climate forcing in the Southern Hemisphere," 2021, Science Advances
  • "Hemispheric black carbon increase after the 13th-century Māori arrival in New Zealand," 2021, Nature
  • "Melt in the Greenland EastGRIP ice core reveals Holocene warm events," 2022, Climate of the Past
  • "Microstructure of Snow and Its Link to Trace Elements and Isotopic Composition at Kohnen Station, Dronning Maud Land, Antarctica," 2020, Frontiers in Earth Science

Frequent coauthors collaborating with Freitag include:

  • Maria Hörhold
  • Sepp Kipfstuhl
  • Frank Wilhelms
  • Joseph R. McConnell
  • Thomas Laepple

Freitag's work has appeared multiple times in several scientific publication venues. The most frequent of these are:

  • Publishing Network for Geoscientific and Environmental Data (PANGAEA) (Alfred Wegener Institute for Polar and Marine Research)
  • The Cryosphere
  • Climate of the Past
  • Nature
  • Frontiers in Earth Science

Best Publications

  • One-to-one coupling of glacial climate variability in Greenland and Antarctica.

    C. Barbante;J.-M. Barnola;J.-M. Barnola;S. Becagli;J. Beer;J. Beer

  • The densification of layered polar firn

    Maria Hörhold;Sepp Kipfstuhl;Frank Wilhelms;Johannes Freitag

  • Firn-air δ15N in modern polar sites and glacial–interglacial ice: a model-data mismatch during glacial periods in Antarctica?

    Amaelle Landais;Amaelle Landais;Jean-Marc Barnola;Kenji Kawamura;Nicolas Caillon

  • A key source area and constraints on entrainment for basin-scale sediment transport by Arctic sea ice

    Hajo Eicken;Josef Kolatschek;Johannes Freitag;Frank Lindemann

  • Development and application of pressure-core-sampling systems for the investigation of gas- and gas-hydrate-bearing sediments

    Friedrich Abegg;Hans-Jürgen Hohnberg;Thomas Pape;Gerhard Bohrmann

  • Isotopic exchange on the diurnal scale between near-surface snow and lower atmospheric water vapor at Kohnen station, East Antarctica

    François Ritter;François Ritter;Hans Christian Steen-Larsen;Hans Christian Steen-Larsen;Martin Werner;Valérie Masson-Delmotte

  • On the impact of impurities on the densification of polar firn

    Maria Hörhold;Thomas Laepple;Johannes Freitag;Matthias Bigler

  • Polar ice structure and the integrity of ice-core paleoclimate records

    Sérgio H. Faria;Johannes Freitag;Sepp Kipfstuhl

  • Microstructure-dependent densification of polar firn derived from X-ray microtomography

    Johannes Freitag;Frank Wilhelms;Sepp Kipfstuhl

  • Microstructure mapping: a new method for imaging deformation-induced microstructural features of ice on the grain scale

    Sepp Kipfstuhl;Ilka Hamann;Anja Lambrecht;Johannes Freitag

  • Meltwater circulation and permeability of Arctic summer sea ice derived from hydrological field experiments

    Johannes Freitag;Hajo Eicken

  • Evidence of dynamic recrystallization in polar firn

    Sepp Kipfstuhl;Sérgio H. Faria;Nobuhiko Azuma;Johannes Freitag

  • Fabric of gas hydrate in sediments from Hydrate Ridge—results from ODP Leg 204 samples

    Friedrich Abegg;Gerhard Bohrmann;Johannes Freitag;Werner F Kuhs

  • Regional climate signal vs. local noise: a two-dimensional viewof water isotopes in Antarctic firn at Kohnen Station, Dronning MaudLand

    Thomas Münch;Thomas Münch;Sepp Kipfstuhl;Johannes Freitag;Hanno Meyer

  • Retrieval of Snow Properties from the Sentinel-3 Ocean and Land Colour Instrument

    Alexander A. Kokhanovsky;Maxim Lamare;Olaf Danne;Carsten Brockmann

  • Modern temperatures in central–north Greenland warmest in past millennium

    Unknown

  • Impurity-controlled densification: a new model for stratified polar firn

    Johannes Freitag;Sepp Kipfstuhl;Thomas Laepple;Frank Wilhelms

  • Core-scale radioscopic imaging: a new method reveals density-calcium link in Antarctic firn

    Johannes Freitag;Sepp Kipfstuhl;Thomas Laepple

  • Constraints on post-depositional isotope modifications in East Antarctic firn from analysing temporal changes of isotope profiles

    Thomas Münch;Thomas Münch;Sepp Kipfstuhl;Johannes Freitag;Hanno Meyer

  • Grain-size evolution of polar firn: a new empirical grain growth parameterization based on X-ray microcomputer tomography measurements

    Stefanie Linow;Maria W. Hörhold;Johannes Freitag

  • Strong-wind events and their influence on the formation of snow dunes: observations from Kohnen station, Dronning Maud Land, Antarctica

    Gerit Birnbaum;Johannes Freitag;Ralf Brauner;Gert König-Langlo

  • Layering of surface snow and firn at Kohnen Station, Antarctica: Noise or seasonal signal?

    Thomas Laepple;Maria Hörhold;Maria Hörhold;Thomas Münch;Thomas Münch;Johannes Freitag

Frequent Co-Authors

Sepp Kipfstuhl
Sepp Kipfstuhl Alfred Wegener Institute for Polar and Marine Research
Olaf Eisen
Olaf Eisen University of Bremen
Thomas Laepple
Thomas Laepple Alfred Wegener Institute for Polar and Marine Research
Frank Wilhelms
Frank Wilhelms Alfred Wegener Institute for Polar and Marine Research
Hanno Meyer
Hanno Meyer Alfred Wegener Institute for Polar and Marine Research
Joseph R. McConnell
Joseph R. McConnell Desert Research Institute
Dietmar Wagenbach
Dietmar Wagenbach Heidelberg University
Angelika Humbert
Angelika Humbert Alfred Wegener Institute for Polar and Marine Research
Robert Mulvaney
Robert Mulvaney British Antarctic Survey
Manfred Wendisch
Manfred Wendisch Leipzig University

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