Gary Shaffer

Search results

• 2021

  Impacts of Changes in Atmospheric O₂ on Human Physiology. Is There a Basis for Concern?

  Keeling, R. F., Powell, F. L., Shaffer, G., Robbins, P. A. & Simonson, T. S., 2 Mar 2021, In: Frontiers in Physiology. 12, 16 p., 571137.

  Research output: Contribution to journal › Review › Research › peer-review

  Open Access

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  12 Citations (Scopus)

  33 Downloads (Pure)

• Regional patterns and temporal evolution of ocean iron fertilization and CO₂ drawdown during the last glacial termination

  Lambert, F., Opazo, N., Ridgwell, A., Winckler, G., Lamy, F., Shaffer, G., Kohfeld, K., Ohgaito, R., Albani, S. & Abe-Ouchi, A., 15 Jan 2021, In: Earth and Planetary Science Letters. 554, 9 p., 116675.

  Research output: Contribution to journal › Letter › Research › peer-review

  Open Access

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  8 Citations (Scopus)

  34 Downloads (Pure)
• 2020

  Is there warming in the pipeline? A multi-model analysis of the Zero Emissions Commitment from CO₂

  MacDougall, A. H., Frolicher, T. L., Jones, C. D., Rogelj, J., Matthews, H. D., Zickfeld, K., Arora, V. K., Barrett, N. J., Brovkin, V., Burger, F. A., Eby, M., Eliseev, A., Hajima, T., Holden, P. B., Jeltsch-Thommes, A., Koven, C., Mengis, N., Menviel, L., Michou, M., Mokhov, I. I. & 9 others, Oka, A., Schwinger, J., Seferian, R., Shaffer, G., Sokolov, A., Tachiiri, K., Tjiputra, J., Wiltshire, A. & Ziehn, T., 15 Jun 2020, In: Biogeosciences. 17, 11, p. 2987-3016 30 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  107 Citations (Scopus)

  60 Downloads (Pure)

• The Magnitude of Surface Ocean Acidification and Carbon Release During Eocene Thermal Maximum 2 (ETM-2) and the Paleocene-Eocene Thermal Maximum (PETM)

  Harper, D. T., Hönisch, B., Zeebe, R. E., Shaffer, G., Haynes, L. L., Thomas, E. & Zachos, J. C., 1 Feb 2020, In: Paleoceanography and Paleoclimatology. 35, 2, 18 p., e2019PA003699.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  36 Citations (Scopus)

  22 Downloads (Pure)
• 2018

  In and out of glacial extremes by way of dust-climate feedbacks

  Shaffer, G. & Lambert, F., 27 Feb 2018, In: Proceedings of the National Academy of Sciences of the United States of America. 115, 9, p. 2026-2031

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  22 Citations (Scopus)

  70 Downloads (Pure)
• 2017

  An improved land biosphere module for use in the DCESS Earth system model (version 1.1) with application to the last glacial termination

  Eichinger, R., Shaffer, G., Albarran, N., Rojas, M. & Lambert, F., 22 Sep 2017, In: Geoscientific Model Development. 10, 9, p. 3481-3498

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  147 Downloads (Pure)

• Assessing the Impact of Retreat Mechanisms in a Simple Antarctic Ice Sheet Model Using Bayesian Calibration

  Ruckert, K. L., Shaffer, G., Pollard, D., Guan, Y., Wong, T. E., Forest, C. E. & Keller, K., 12 Jan 2017, In: PLOS ONE. 12, 1, e0170052.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  28 Citations (Scopus)

  128 Downloads (Pure)

• Implementation of methane cycling for deep-time global warming simulations with the DCESS Earth system model (version 1.2)

  Shaffer, G., Fernandez Villanueva, E., Rondanelli, R., Pedersen, J. O. P., Olsen, S. M. & Huber, M., 10 Nov 2017, In: Geoscientific Model Development. 10, 11, p. 4081-4103

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  1 Citation (Scopus)

  227 Downloads (Pure)
• 2016

  Deep time evidence for climate sensitivity increase with warming

  Shaffer, G., Huber, M., Rondanelli, R. & Pedersen, J. O. P., 28 Jun 2016, In: Geophysical Research Letters. 43, 12, p. 6538-6545

  Research output: Contribution to journal › Journal article › Research › peer-review

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  27 Citations (Scopus)

• Regional Sea-Level Change along the Chilean Coast in the 21st Century

  Albrecht, F. & Shaffer, G., 11 Apr 2016, In: Journal of Coastal Research. 32, 6, p. 1322-1332

  Research output: Contribution to journal › Journal article › Research › peer-review

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  13 Citations (Scopus)
• 2015

  Dust fluxes and iron fertilization in Holocene and Last Glacial Maximum climates

  Lambert, F., Tagliabue, A., Shaffer, G., Lamy, F., Winckler, G., Farias, L., Gallardo, L. & De Pol-Holz, R., 28 Jul 2015, In: Geophysical Research Letters (Online). 42, 14, p. 6014-6023

  Research output: Contribution to journal › Journal article › Research › peer-review

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  93 Citations (Scopus)
• 2014

  Formulation, calibration and validation of the DAIS model (version 1), a simple Antarctic ice sheet model sensitive to variations of sea level and ocean subsurface temperature

  Shaffer, G., 1 Jan 2014, In: Geoscientific Model Development. 7, 4, p. 1803-1818

  Research output: Contribution to journal › Journal article › Research › peer-review
  11 Citations (Scopus)
• 2013

  Carbon dioxide and climate impulse response functions for the computation of greenhouse gas metrics: a multi-model analysis

  Joos, F., Roth, R., Fuglestvedt, J. S., Peters, G. P., Enting, I. G., von Bloh, W., Brovkin, V., Burke, E. J., Eby, M., Edwards, N. R., Friedrich, T. & Shaffer, G., 10 Jan 2013, In: Atmospheric Chemistry and Physics. 13, 5, p. 2793-2825

  Research output: Contribution to journal › Journal article › Research › peer-review
  479 Citations (Scopus)

• Historical and idealized climate model experiments: an intercomparison of Earth system models of intermediate complexity

  Eby, M., Weaver, A. J., Alexander, K., Zickfeld, K., Abe-Ouchi, A., Cimatoribus, A. A., Crespin, E., Drijfhout, S. S., Edwards, N. R., Eliseev, A. V., Feulner, G., Fichefet, T., Forest, C. E., Goosse, H., Holden, P. B., Joos, F., Kawamiya, M., Kicklighter, D., Kienert, H., Matsumoto, K. & 19 others, Mokhov, I. I., Monier, E., Olsen, S. M., Pedersen, J. O. P., Perrette, M., Philippon-Berthier, G., Ridgwell, A., Schlosser, A., von Deimling, T. S., Shaffer, G., Smith, R. S., Spahni, R., Sokolov, A. P., Steinacher, M., Tachiiri, K., Tokos, K., Yoshimori, M., Zeng, N. & Zhao, F., 2 Jan 2013, In: Climate of the Past. 9, 3, p. 1111-1140

  Research output: Contribution to journal › Journal article › Research › peer-review
  144 Citations (Scopus)

• Long-Term Climate Change Commitment and Reversibility: An EMIC Intercomparison

  Zickfeld, K., Eby, M., Weaver, A. J., Alexander, K., Crespin, E., Edwards, N. R., Elissev, A. V., Feulner, G., Fichefet, T., Forest, C. E. & Shaffer, G., 1 Aug 2013, In: Journal of Climate. 26, 16, p. 5782-5809

  Research output: Contribution to journal › Journal article › Research › peer-review
  185 Citations (Scopus)
• 2010

  Long-term effectiveness and consequences of carbon dioxide sequestration

  Shaffer, G., 1 Jul 2010, In: Nature Geoscience. 3, 7, p. 464-467 3 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  138 Citations (Scopus)
• 2009

  Long-term ocean oxygen depletion in response to carbon dioxide emissions from fossil fuels

  Shaffer, G., Olsen, S. M. & Pedersen, J. O. P., 2009, In: Nature Geosciences. 2, 2, p. 105-109 4 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  185 Citations (Scopus)

• Long time management of fossil fuel resources to limit global warming and avoid ice age onsets

  Shaffer, G., 2009, In: Geophysical Research Letters. 36, p. L03704

  Research output: Contribution to journal › Journal article › Research › peer-review
  4 Citations (Scopus)
• 2005

  Ocean oxygen isotope constraints on mechanisms for millennial-scale climate variability

  Olsen, S. M., Shaffer, G. & Bjerrum, C. J., 2005, In: Paleoceanography. 20, p. 001063

  Research output: Contribution to journal › Journal article › Research › peer-review
  15 Citations (Scopus)
• 2004

  Circulation and variability in the Chile Basin

  Shaffer, G., Hormazabal, S., Pizarro, O. & Ramos, M., 2004, In: Deep Sea Research - Part I - Oceanographic Research Papers. 51, p. 1367-1386

  Research output: Contribution to journal › Journal article › Research › peer-review

  32 Citations (Scopus)

• Coastal transition zone off Chile

  Hormazabal, S., Shaffer, G. & Leth, O. K., 2004, In: Journal of Geophysical Research - Oceans. 109, p. C01021

  Research output: Contribution to journal › Journal article › Research › peer-review
  151 Citations (Scopus)

• Hydrography of the eastern South Pacific Ocean: results from the sonne 102 cruise, May-June 1995

  Leth, O. K., Shaffer, G. & Ulloa, O., 2004, In: Deep Sea Research - Part II - Topical Studies in Oceanography. 51, 20-21, p. 2349-2369

  Research output: Contribution to journal › Journal article › Research › peer-review
  22 Citations (Scopus)

• Ocean subsurface warming as a mechanism for coupling Dansgaard-Oeschger climate cycles and ice-rafting events

  Shaffer, G., Olsen, S. M. & Bjerrum, C. J., 2004, In: Geophysical Research Letters. 31, L24202, p. 1-4

  Research output: Contribution to journal › Journal article › Research › peer-review
  83 Citations (Scopus)
• 2002

  Dynamics of seasonal and interannual variability of the Peru-Chile undercurrent

  Pizarro, O., Shaffer, G., Dewitte, B. & Ramos, M., 2002, In: Geophysical Research Letters. 29, 12, p. 1581

  Research output: Contribution to journal › Journal article › Research › peer-review
  89 Citations (Scopus)

• Tropical Pacific control of intraseasonal oscillation off Chile by way of oceanic and atmospheric pathways

  Hormazabal Fritz, S. E., Shaffer, G. & Pizarro, O., 2002, In: Geophysical Research Letters. 29, no. 6, p. 10.1029/2001GL013481

  Research output: Contribution to journal › Journal article › Research › peer-review

  54 Citations (Scopus)
• 2001

  Antarctic Intermediate Water mass formation in Ocean General Circulation Models

  Sørensen, J. V. T., Ribbe, J. & Shaffer, G., 2001, In: Journal of Physical Oceanography. 31, p. 3295-3311

  Research output: Contribution to journal › Journal article › Research › peer-review

  28 Citations (Scopus)

• A numerical study of the seasonal variability in the circulation off central Chile

  Leth, O. K. & Shaffer, G., 2001, In: Journal of Geophysical Research - Oceans. Vol. 106, no. C10, p. 22, 229-22,248

  Research output: Contribution to journal › Journal article › Research › peer-review

• Coupled oscillationsin Antarctic sea ice and atmosphere in the South Pacific sector

  Venegas, S. A., Drinkwater, M. R. & Shaffer, G., 2001, In: Geophysical Research Letters. Vol. 28, no. 17, p. 3301-3304

  Research output: Contribution to journal › Journal article › Research › peer-review

• Local and remote forcing of sea surface temperature in the coastal upwelling system off Chile

  Hormazabal Fritz, S. E., Shaffer, G., Letelier, J. & Ulloa, O., 2001, In: Journal of Geophysical Research - Oceans. Vol. 106, no. C8, p. 16,657-16,671

  Research output: Contribution to journal › Journal article › Research › peer-review

• Millenial-scale climate variability controlled by vertical exchange in the ocean

  Shaffer, G., Olsen, S. M. & Bjerrum, C. J., 2001.

  Research output: Contribution to conference › Conference abstract for conference › Research

• Sensitivity of the thermohaline circulation and climate to ocean exchanges in a simple coupled model

  Shaffer, G. & Olsen, S. M., 2001, In: Climate Dynamics. 17, p. 433-444

  Research output: Contribution to journal › Journal article › Research › peer-review

  8 Citations (Scopus)
• 2000

  The international at-sea intercomparison of ƒCO₂ system during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean

  Körtzinger, A., Mintrop, L., Wallace, D. W. R., Johnson, K. M., Neill, C., Tilbrook, B., Towler, P., Inoue, H. Y., Ishii, M., Shaffer, G., Saavedra, R. F. T., Ohtaki, E., Yamashita, E., Poisson, A., Brunet, C., Schauer, B., Goyet, C. & Eischeid, G., 2000, In: Marine Chemistry. 72, p. 171-192

  Research output: Contribution to journal › Journal article › Research › peer-review

• Warming and circulation change in the eastern South Pacific Ocean

  Shaffer, G., Leth, O. K., Ulloa, O., Bendtsen, J., Daneri, G., Dellarossa, V., Hormazabal Fritz, S. E. & Sehlstedt, P. I., 2000, In: Geophysical Research Letters. Vol. 27, No. 9, p. 1247-1250

  Research output: Contribution to journal › Journal article › Research › peer-review

  45 Citations (Scopus)
• 1999

  Fractionation during remineralization of organic matter in the ocean

  Shaffer, G., Bendtsen, J. & Ulloa, O., 1999, In: Deep Sea Research - Part I - Oceanographic Research Papers. 46, p. 185-204

  Research output: Contribution to journal › Journal article › Research

  46 Citations (Scopus)

• Seasonal and interannual variability of currents and temperature off central Chile

  Shaffer, G., Hormazabal Fritz, S. E., Pizarro, O. & Salinas, S., 1999, In: Journal of Geophysical Research - Oceans. Vol 104, No. C12, p. 29,951-29,961

  Research output: Contribution to journal › Journal article › Research › peer-review
• 1998

  Wind-Driven, Coastal-Trapped Waves off the Island of Gotland, Baltic Sea

  Shaffer, G. & Pizarro, O., 1998, In: Journal of Physical Oceanography. Volume 28, p. 2117-2129

  Research output: Contribution to journal › Journal article › Research

  22 Citations (Scopus)
• 1997

  Cirkulation and Low-frequency Variability near the Chilean Coast: Remotely Forced Fluctuations during the 1991-92 El Niño

  Shaffer, G., Pizarro, O., Djurfeldt, L., Salinas, S. & Rutllant, J., 1997, In: Journal of physical Oceangraphy. Vol. 27, No. 2, p. 217-235

  Research output: Contribution to journal › Journal article › Research
• 1994

  Role of the Bering Strait in controlling North Atlantic ocean circulation and climate

  Shaffer, G. & Bendtsen, J., 1994, In: Nature. Vol 357, 27. januar, p. 354-357

  Research output: Contribution to journal › Journal article › Research › peer-review
  60 Citations (Scopus)