Billede af Helle Astrid Kjær

Helle Astrid Kjær

Cand. Scient. Geophysics

 https://orcid.org/0000-0002-3781-9509

  • Tagensvej 16, 2200 København N.

20092019

Publikationer pr. år

Personlig profil

Kort præsentation

Ice cores offer an unique archive for past climate and environment. I develop methods for the continuous detection (CFA) of chemicals in ice cores. I have amongst others developed a method for the continuous detection of dissolved reactive phosphorus and a method for the continuous detection of pH in ice.

Currently my position is within the ERC funded ice2ice project. The project is on how sea ice and land ice effect each other. My contribution is CFA analysis of the new Greenland "ReCAP" ice core to try and inform on past climate variability, especially using sea ice proxies.

Outreach to the general public is a very important to me. I give several lectures on weather, climate change and ice cores for visiting high school students, university students and coming teachers every year. Furthermore I update the ice2ice project homepage: www.ice2ice.eu

I use my analytic science skills in combination with a lot of travel activity visiting institutions doing high quality ice core climate research such as the Desert Research Institute, Reno, Nevada, USA and the National Institute for polar research, Tokyo, Japan as well as the Antarctic Research Centre, Victoria University of Wellington, New Zealand, not to mention out close collaboration with University of Bergen and UniReserach in Norway as part of ice2ice.

Eksterne ansættelser

Danish Institute for Studying abroad (DIS)

1 aug. 2014 → 1 jun. 2015

Emneord

  • Det Natur- og Biovidenskabelige Fakultet
  • Ice cores
  • Continuous Flow Analysis (CFA)
  • pH
  • Phosphate

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Se alle 28 publikation
  • 4 Andet (priser, ekstern undervisning samt andet). - Gæsteophold ved andre institutioner
  • 4 Foredrag og mundtlige bidrag
  • 3 Organisation af og deltagelse i konference
  • 2 Deltagelse i workshop, seminar og kursus
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Se alle 15 aktiviteter

  • Four approaches leading to the age scale of the Young Island ice core

    Moser, D. (Ophavsmand), Thomas, E. (Ophavsmand), Moser, D. (Bidrager), Moser, D. (Bidrager), Thomas, E. (Bidrager), Tetzner, D. (Bidrager), Segato, D. (Bidrager), Spolaor, A. (Bidrager), Kjaer, H. (Bidrager), Markle, B. (Bidrager), Pedro, J. (Bidrager), Jackson, S. (Bidrager), Ngoumtsa, E. (Bidrager), Vallelonga, P. (Bidrager), Centre, U. P. D. (Bidrager), Centre, U. P. D. (Bidrager) & Centre, U. P. D. (Bidrager), NERC EDS UK Polar Data Centre, 2021

    DOI: 10.5285/8b60d15f-c8a5-4178-b7c2-0fef4a2717d2, https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01586

    Datasæt

  • Policy Brief: Key findings and recommendations from three H2020 Projects on Tipping Points: TiPES, COMFORT, and TiPACCs

    Rusiecka, D. (Ophavsmand), Martins, H. (Ophavsmand), Boers, N. (Ophavsmand), Kjær, H. A. (Ophavsmand), Langebroek, P. (Ophavsmand), Dy, C. L. (Ophavsmand), Heinze, C. (Ophavsmand), Blenckner, T. (Ophavsmand), Ditlevsen, P. (Ophavsmand) & Østerhus, S. (Ophavsmand), Zenodo, 2022

    DOI: 10.5281/zenodo.6577027, https://zenodo.org/records/6577027

    Datasæt

  • Dataset for "Arctic mercury increased through the Last Glacial Termination with a warming climate"

    Segato, D. (Ophavsmand), Saiz-Lopez, A. (Ophavsmand), Mahajan, A. S. (Ophavsmand), Wang, F. (Ophavsmand), Corella, J. P. (Ophavsmand), Cuevas, C. A. (Ophavsmand), Erhardt, T. (Ophavsmand), Jensen, C. M. (Ophavsmand), Zeppenfeld, C. (Ophavsmand), Kjær, H. A. (Ophavsmand), Turetta, C. (Ophavsmand), Cairns, W. R. L. (Ophavsmand), Barbante, C. (Ophavsmand) & Spolaor, A. (Ophavsmand), Zenodo, 2023

    DOI: 10.5281/zenodo.7754371, https://zenodo.org/records/7754371

    Datasæt

  • The SUMup collaborative database: Surface mass balance, subsurface temperature and density measurements from the Greenland and Antarctic ice sheets (2024 release)

    Vandecrux, B. (Ophavsmand), Amory, C. (Ophavsmand), Ahlstrøm, A. P. (Ophavsmand), Akers, P. D. (Ophavsmand), Albert, M. (Ophavsmand), Alley, R. B. (Ophavsmand), Alves De Castro, M. (Ophavsmand), Arnaud, L. (Ophavsmand), Baker, I. (Ophavsmand), Bales, R. (Ophavsmand), Benson, C. (Ophavsmand), Box, J. E. (Ophavsmand), Brucker, L. (Ophavsmand), Buizert, C. (Ophavsmand), Chandler, D. (Ophavsmand), Charalampidis, C. (Ophavsmand), Cherblanc, C. (Ophavsmand), Clerx, N. (Ophavsmand), Colgan, W. (Ophavsmand), Covi, F. (Ophavsmand), Dattler, M. (Ophavsmand), Denis, G. (Ophavsmand), Derksen, C. (Ophavsmand), Dibb, J. E. (Ophavsmand), Ding, M. (Ophavsmand), Dixon, D. (Ophavsmand), Eisen, O. (Ophavsmand), Fahrner, D. (Ophavsmand), Fausto, R. (Ophavsmand), Favier, V. (Ophavsmand), Fernandoy, F. (Ophavsmand), Freitag, J. (Ophavsmand), Gerland, S. (Ophavsmand), Harper, J. (Ophavsmand), Hawley, R. L. (Ophavsmand), Heuer, J. (Ophavsmand), Hock, R. (Ophavsmand), Hou, S. (Ophavsmand), How, P. (Ophavsmand), Humphrey, N. (Ophavsmand), Hubbard, B. (Ophavsmand), Iizuka, Y. (Ophavsmand), Isaksson, E. (Ophavsmand), Kameda, T. (Ophavsmand), Karlsson, N. B. (Ophavsmand), Kawakami, K. (Ophavsmand), Kjær, H. A. (Ophavsmand), Kreutz, K. (Ophavsmand), Kuipers Munneke, P. (Ophavsmand), Lazzara, M. (Ophavsmand), Lemeur, E. (Ophavsmand), Lenaerts, J. T. M. (Ophavsmand), Lewis, G. (Ophavsmand), Lindau, F. G. L. (Ophavsmand), Lindsey-Clark, J. (Ophavsmand), MacFerrin, M. (Ophavsmand), Machguth, H. (Ophavsmand), Magand, O. (Ophavsmand), Mankoff, K. D. (Ophavsmand), Marquetto, L. (Ophavsmand), Martinerie, P. (Ophavsmand), McConnell, J. R. (Ophavsmand), Medley, B. (Ophavsmand), Miège, C. (Ophavsmand), Miles, K. E. (Ophavsmand), Miller, O. (Ophavsmand), Miller, H. (Ophavsmand), Montgomery, L. (Ophavsmand), Morris, E. (Ophavsmand), Mosley-Thompson, E. (Ophavsmand), Mulvaney, R. (Ophavsmand), Niwano, M. (Ophavsmand), Oerter, H. (Ophavsmand), Osterberg, E. (Ophavsmand), Otosaka, I. (Ophavsmand), Picard, G. (Ophavsmand), Polashenski, C. (Ophavsmand), Reijmer, C. (Ophavsmand), Rennermalm, A. (Ophavsmand), Rutishauser, A. (Ophavsmand), Scanlan, K. (Ophavsmand), Simoes, J. C. (Ophavsmand), Simonsen, S. B. (Ophavsmand), Smeets, P. C. J. P. (Ophavsmand), Smith, A. (Ophavsmand), Solgaard, A. (Ophavsmand), Spencer, M. (Ophavsmand), Steen-Larsen, H. C. (Ophavsmand), Stevens, C. M. (Ophavsmand), Sugiyama, S. (Ophavsmand), Svensson, J. (Ophavsmand), Tedesco, M. (Ophavsmand), Thomas, E. (Ophavsmand), Thompson-Munson, M. (Ophavsmand), Tsutaki, S. (Ophavsmand), Van As, D. (Ophavsmand), Van Den Broeke, M. R. (Ophavsmand), Van Tiggelen, M. (Ophavsmand), Wang, Y. (Ophavsmand), Wilhelms, F. (Ophavsmand), Winstrup, M. (Ophavsmand), Xiao, J. (Ophavsmand) & Xiao, C. (Ophavsmand), NSF Arctic Data Center, 2024

    DOI: 10.18739/a2m61br5m, https://arcticdata.io/catalog/view/doi:10.18739/A2M61BR5M

    Datasæt