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O'Beirne, Molly D; Werne, Josef P; Hecky, Robert E; Johnson, Thomas C; Katsev, Sergei; Reavie, Euan D (2017): Age models and bulk organic isotope geochemistry from Lake Superior sediment cores [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.874731, Supplement to: O'Beirne, MD et al. (2017): Anthropogenic climate change has altered primary productivity in Lake Superior. Nature Communications, 8, 15713, https://doi.org/10.1038/ncomms15713

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Published: 2017-04-19 • DOI registered: 2017-04-25

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Abstract:
Anthropogenic climate change has the potential to alter many facets of Earth's freshwater resources, especially lacustrine ecosystems. The effects of anthropogenic changes in Lake Superior, which is Earth's largest freshwater lake by area, are not well documented (spatially or temporally) and predicted future states in response to climate change vary. Here we show that Lake Superior experienced a slow, steady increase in production throughout the Holocene using (paleo)productivity proxies in lacustrine sediments to reconstruct past changes in primary production. Furthermore, data from the last century indicate a rapid increase in primary production, which we attribute to increasing surface water temperatures and longer seasonal stratification related to longer ice-free periods in Lake Superior due to anthropogenic climate warming. These observations demonstrate that anthropogenic effects have become a prominent influence on one of Earth's largest, most pristine lacustrine ecosystems.
Coverage:
Median Latitude: 47.523258 * Median Longitude: -88.537215 * South-bound Latitude: 47.117778 * West-bound Longitude: -91.350830 * North-bound Latitude: 48.076389 * East-bound Longitude: -85.127500
Date/Time Start: 2002-01-01T00:00:00 * Date/Time End: 2011-01-01T00:00:00
Comment:
The data contained herein are from eight sediment multicores and three piston sediment cores with accompanying gravity/trigger sediment cores spanning the Lake Superior basin. The multicores were sampled at high resolution encompassing the most recent ca. 200 years and the gravity-piston sediment cores are coarser resolution (ca. every 100 years) and date to ca. 10,000 years cal BP.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
28 datasets

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Datasets listed in this publication series

  1. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH02-10GC. https://doi.org/10.1594/PANGAEA.874711
  2. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Paleomagnetic (inclination) based age model of sediment core BH02-10PC. https://doi.org/10.1594/PANGAEA.874725
  3. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH02-10PC. https://doi.org/10.1594/PANGAEA.874712
  4. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Paleomagnetic of sediment core BH02-10PC. https://doi.org/10.1594/PANGAEA.874728
  5. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): 210Pb based age model of sediment core BH03-3. https://doi.org/10.1594/PANGAEA.874717
  6. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH03-3. https://doi.org/10.1594/PANGAEA.874704
  7. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): 210Pb based age model of sediment core BH09-2. https://doi.org/10.1594/PANGAEA.874718
  8. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH09-2. https://doi.org/10.1594/PANGAEA.874705
  9. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): 210Pb based age model of sediment core BH09-3. https://doi.org/10.1594/PANGAEA.874719
  10. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH09-3. https://doi.org/10.1594/PANGAEA.874706
  11. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): 210Pb based age model of sediment core BH09-4. https://doi.org/10.1594/PANGAEA.874720
  12. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH09-4. https://doi.org/10.1594/PANGAEA.874707
  13. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH09K-SUP09GC. https://doi.org/10.1594/PANGAEA.874713
  14. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Paleomagnetic (inclination) based age model of sediment core BH09K-SUP09PC. https://doi.org/10.1594/PANGAEA.874726
  15. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH09K-SUP09PC. https://doi.org/10.1594/PANGAEA.874714
  16. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Paleomagnetic of sediment core BH09K-SUP09PC. https://doi.org/10.1594/PANGAEA.874729
  17. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH11IR-SUP11GC. https://doi.org/10.1594/PANGAEA.874715
  18. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Paleomagnetic (inclination) based age model of sediment core BH11IR-SUP11PC. https://doi.org/10.1594/PANGAEA.874727
  19. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core BH11IR-SUP11PC. https://doi.org/10.1594/PANGAEA.874716
  20. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Paleomagnetic of sediment core BH11IR-SUP11PC. https://doi.org/10.1594/PANGAEA.874730
  21. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): 210Pb based age model of sediment core CM_MC. https://doi.org/10.1594/PANGAEA.874721
  22. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core CM_MC. https://doi.org/10.1594/PANGAEA.874793
  23. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): 210Pb based age model of sediment core EM_MC. https://doi.org/10.1594/PANGAEA.874722
  24. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core EM_MC. https://doi.org/10.1594/PANGAEA.874708
  25. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): 210Pb based age model of sediment core IR_MC. https://doi.org/10.1594/PANGAEA.874723
  26. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core IR_MC. https://doi.org/10.1594/PANGAEA.874709
  27. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): 210Pb based age model of sediment core LG_MC. https://doi.org/10.1594/PANGAEA.874724
  28. O'Beirne, MD; Werne, JP; Hecky, RE et al. (2017): Bulk organic isotope geochemistry of sediment core LG_MC. https://doi.org/10.1594/PANGAEA.874710