Bärbel Hönisch

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Bärbel Hönisch (* 1974 ) is a German palaeoceanographer and paleoclimatologist , author and professor at Columbia University .

Life

Hönisch completed her studies in biology at the University of Bielefeld with a preliminary diploma, in 1999 her studies in marine biology at the University of Bremen with a diploma and obtained her doctorate in 2002 at the Alfred Wegener Institute for Polar and Marine Research . From 2002 to 2006 she worked in various scientific roles, including at the Lamont-Doherty Earth Observatory , and since 2007 she has been researching at Columbia University. She has been a professor at the Department of Earth and Environmental Sciences there since 2019.

Act

Based on an analysis of the Middle Pleistocene , in the course of which the duration of the various cold- ages increased from 40,000 to 100,000 years, Hoenisch and her co-authors reconstructed the temperature fluctuations and the carbon dioxide concentration over the last 2.1 million years in a study published in 2009 indicates that current CO 2 levels are the highest in this comparison period. The focus of her scientific work, partly with the participation of well-known geoscientists such as David Archer , James E. Hansen and James Zachos , is on the Cenozoic (New Earth Age) and above all on geochemical changes in the world's oceans. She summarized these results as follows: “What we are doing today really stands out. We know that during previous ocean acidification events, life was not extinguished - new species emerged to replace those that became extinct. However, if industrial CO 2 emissions continue at the current pace, we may lose organisms that are important to us - coral reefs, oysters and salmon. "

In 2018, Hönisch received in recognition of “the research influence, the innovative interdisciplinary work, the merits in teaching (mentoring), the social influence and other relevant contributions and to recognize that the award winner has excellent prospects of continuing a leadership role in paleoceanography or paleoclimatology has “the Willi Dansgaard Award from the American Geophysical Union . In this context, her pioneering work in the development and application of geochemical proxies for the temperature reconstruction of the paleo-oceans was particularly recognized .

In 2018 she gave Marie Tharp Lectures at GEOMAR .

Web of Science records 60 publications and an h-index of 27 for Hönisch (as of January 2020).

Publications (selection)

  • with NG Hemming, D. Archer, M. Siddall, JF McManus: Atmospheric carbon dioxide concentration across the mid-Pleistocene transition . In: Science . tape 324 , no. 5934 , 2009, p. 1551–1554 , doi : 10.1126 / science.1171477 .
  • with A. Ridgwell, DN Schmidt, E. Thomas, SJ Gibbs, A. Sluijs, W. Kiessling: The geological record of ocean acidification . In: Science . tape 335 , no. 6072 , 2012, p. 1058-1063 , doi : 10.1126 / science.1208277 .
  • with EJ Rohling, A. Sluijs, HA Dijkstra, P. Köhler, RS van der Wal, AS von der Heydt, R. Deconto: Making sense of palaeoclimate sensitivity . In: Nature . tape 491 , no. 7426 , 2012, p. 683 , doi : 10.1038 / nature11574 .

Web links

Individual evidence

  1. a b Curriculum vitae: Dr. Bärbel Hönisch. Columbia University, 2020, accessed January 9, 2020 .
  2. a b Bärbel Hönisch. Columbia University, accessed January 9, 2020 .
  3. Hönisch et al. (2009), DOI: 10.1126 / science.1171477
  4. ^ Ocean Acidification Rate May Be Unprecedented, Study Says. Columbia University, March 1, 2012, accessed January 9, 2020 .
  5. American Geophysical Union (2018), Hönisch receives 2018 Paleoceanography and Paleoclimatology Willi Dansgaard Award, Eos, 99, doi: 10.1029 / 2018EO110103 . Published November 16, 2018. Retrieved January 9, 2020.
  6. On the trail of climate change: Professor Bärbel Hönisch from Columbia University (USA) holds a Marie Tharp Lecture at GEOMAR , geomar.de, March 23, 2018
  7. Query of the Web of Science database on January 17, 2020.