Articles | Volume 20, issue 1
https://doi.org/10.5194/bg-20-229-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-229-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Jan 2023
Research article |
| 16 Jan 2023
| 16 Jan 2023
Biomarker characterization of the North Water Polynya, Baffin Bay: implications for local sea ice and temperature proxies
David J. Harning
CORRESPONDING AUTHOR
Institute of Arctic and Alpine Research, University of Colorado,
Boulder, USA
Brooke Holman
Institute of Arctic and Alpine Research, University of Colorado,
Boulder, USA
Lineke Woelders
Institute of Arctic and Alpine Research, University of Colorado,
Boulder, USA
Anne E. Jennings
Institute of Arctic and Alpine Research, University of Colorado,
Boulder, USA
Julio Sepúlveda
Institute of Arctic and Alpine Research, University of Colorado,
Boulder, USA
Department of Geological Sciences, University of Colorado, Boulder,
USA
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Cited
16 citations as recorded by crossref.
- Reviews and syntheses: Best practices for the application of marine GDGTs as proxy for paleotemperatures: sampling, processing, analyses, interpretation, and archiving protocols P. Bijl et al.
- Sources and implications of hydroxylated isoprenoid GDGTs on the northwest shelf of Australia through the Pliocene-Pleistocene era Y. He et al.
- The promise of sedimentary ancient DNA as a proxy to understand Arctic Ocean palaeoecology and palaeoenvironments F. Wijnands et al.
- Interaction between ice sheet dynamics and sea surface characteristics in the Labrador Sea during the last 50 ka D. You et al.
- Late-Holocene paleoreconstruction of the Southwestern Atlantic Ocean: A multiproxy understanding of the paleoclimatic, paleoproductivity and paleotemperature variability F. Santos et al.
- Spatiotemporal Variability in the Holocene Extent of Pikialasorsuaq (North Water Polynya), Baffin Bay D. Harning et al.
- Cryosphere and ocean variability in Kane Basin since the 18th century: insights from two marine multi-proxy records A. Kvorning et al.
- Impact of terrestrial organic matter input on distributions of hydroxylated isoprenoidal GDGTs in marine sediments: Implications for OH-isoGDGT-based temperature proxies D. Varma et al.
- Impact of non-thermal variables on hydroxylated GDGT distributions around Iceland D. Harning & J. Sepúlveda
- Sea-ice variations and trends during the Common Era in the Atlantic sector of the Arctic Ocean A. Dauner et al.
- Towards understanding archaeal lipid biomarker (GDGT) distributions in central Arctic Ocean sediments J. Martens et al.
- OH-isoGDGTs as a paleothermometer for bottom seawater temperature in the eastern China marginal seas Y. Wang et al.
- Analytical inconsistencies in the measurement and reporting of IP25, IPSO25 and related biomarkers for paleo sea ice reconstruction S. Belt & L. Smik
- Machine learning-based paleobathymetric reconstructions using archaeal lipid biomarkers J. Zhou et al.
- Disentangling Effects of Sea Surface Temperature and Water Depth on Hydroxylated Isoprenoid GDGTs: Insights From the Hadal Zone and Global Sediments W. Xiao et al.
- A potential new sea surface temperature proxy based on isomeric highly branched isoprenoid lipid biomarkers: EZ25 S. Belt et al.
16 citations as recorded by crossref.
- Reviews and syntheses: Best practices for the application of marine GDGTs as proxy for paleotemperatures: sampling, processing, analyses, interpretation, and archiving protocols P. Bijl et al.
- Sources and implications of hydroxylated isoprenoid GDGTs on the northwest shelf of Australia through the Pliocene-Pleistocene era Y. He et al.
- The promise of sedimentary ancient DNA as a proxy to understand Arctic Ocean palaeoecology and palaeoenvironments F. Wijnands et al.
- Interaction between ice sheet dynamics and sea surface characteristics in the Labrador Sea during the last 50 ka D. You et al.
- Late-Holocene paleoreconstruction of the Southwestern Atlantic Ocean: A multiproxy understanding of the paleoclimatic, paleoproductivity and paleotemperature variability F. Santos et al.
- Spatiotemporal Variability in the Holocene Extent of Pikialasorsuaq (North Water Polynya), Baffin Bay D. Harning et al.
- Cryosphere and ocean variability in Kane Basin since the 18th century: insights from two marine multi-proxy records A. Kvorning et al.
- Impact of terrestrial organic matter input on distributions of hydroxylated isoprenoidal GDGTs in marine sediments: Implications for OH-isoGDGT-based temperature proxies D. Varma et al.
- Impact of non-thermal variables on hydroxylated GDGT distributions around Iceland D. Harning & J. Sepúlveda
- Sea-ice variations and trends during the Common Era in the Atlantic sector of the Arctic Ocean A. Dauner et al.
- Towards understanding archaeal lipid biomarker (GDGT) distributions in central Arctic Ocean sediments J. Martens et al.
- OH-isoGDGTs as a paleothermometer for bottom seawater temperature in the eastern China marginal seas Y. Wang et al.
- Analytical inconsistencies in the measurement and reporting of IP25, IPSO25 and related biomarkers for paleo sea ice reconstruction S. Belt & L. Smik
- Machine learning-based paleobathymetric reconstructions using archaeal lipid biomarkers J. Zhou et al.
- Disentangling Effects of Sea Surface Temperature and Water Depth on Hydroxylated Isoprenoid GDGTs: Insights From the Hadal Zone and Global Sediments W. Xiao et al.
- A potential new sea surface temperature proxy based on isomeric highly branched isoprenoid lipid biomarkers: EZ25 S. Belt et al.
Saved (final revised paper)
Latest update: 30 Apr 2026
Short summary
In order to better reconstruct the geologic history of the North Water Polynya, we provide modern validations and calibrations of lipid biomarker proxies in Baffin Bay. We find that sterols, rather than HBIs, most accurately capture the current extent of the North Water Polynya and will be a valuable tool to reconstruct its past presence or absence. Our local temperature calibrations for GDGTs and OH-GDGTs reduce the uncertainty present in global temperature calibrations.
In order to better reconstruct the geologic history of the North Water Polynya, we provide...
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