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  1. Article

    Open Access

    Multicentennial record of Labrador Sea primary productivity and sea-ice variability archived in coralline algal barium

    Accelerated warming and melting of Arctic sea-ice has been associated with significant increases in phytoplankton productivity in recent years. Here, utilizing a multiproxy approach, we reconstruct an annually...

    P. Chan, J. Halfar, W. Adey, S. Hetzinger, T. Zack, G.W.K. Moore in Nature Communications (2017)

  2. Article

    Open Access

    Amplification of the Atlantic Multidecadal Oscillation associated with the onset of the industrial-era warming

    North Atlantic sea surface temperatures experience variability with a periodicity of 60–80 years that is known as the Atlantic Multidecadal Oscillation (AMO). It has a profound imprint on the global climate sy...

    G. W. K. Moore, J. Halfar, H. Majeed, W. Adey, A. Kronz in Scientific Reports (2017)

  3. Article

    From coral framework to rhodolith bed: sedimentary footprint of the 1982/1983 ENSO in the Galápagos

    J. Halfar, B. Riegl in Coral Reefs (2013)

  4. Article

    Open Access

    Coralline algal Barium as indicator for 20th century northwestern North Atlantic surface ocean freshwater variability

    During the past decades climate and freshwater dynamics in the northwestern North Atlantic have undergone major changes. Large-scale freshening episodes, related to polar freshwater pulses, have had a strong i...

    S. Hetzinger, J. Halfar, T. Zack, J. V. Mecking, B. E. Kunz in Scientific Reports (2013)

  5. No Access

    Article

    Marine proxy evidence linking decadal North Pacific and Atlantic climate

    Decadal- to multidecadal variability in the extra-tropical North Pacific is evident in 20th century instrumental records and has significant impacts on Northern Hemisphere climate and marine ecosystems. Severa...

    S. Hetzinger, J. Halfar, J. V. Mecking, N. S. Keenlyside, A. Kronz in Climate Dynamics (2012)

  6. No Access

    Article

    Living on the edge: high-latitude Porites carbonate production under temperate eutrophic conditions

    Non-framework building high-latitude coral communities have recently received increased attention as a result of their potential to act as refugia during global change, as proxies for such change and for testi...

    J. Halfar, L. Godinez-Orta, B. Riegl, J.E. Valdez-Holguin, J.M. Borges in Coral Reefs (2005)