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Dr Rachael H. Rhodes

Dr Rachael H. Rhodes

Research Associate

College Research Associate, St John's College

Climate Change and Earth-Ocean-Atmosphere Systems

Downing Site
Downing Street

Room: N302

Office Phone: +44 (0) 1223 764368


01/10/2017–Present            Research Associate, University of Cambridge

01/10/2015–30/09/2017    Horizon 2020 Marie Sklowdowka-Curie Individual Fellowship:"Sea ice across Dansgaard-Oeschger events in Greenland”. Department of Earth Sciences, University of Cambridge, UK. Research focus: Improving estimates of Arctic sea ice conditions during abrupt climate changes using ice core chemistry and chemical transport modelling. Mentor: Prof. Eric Wolff

01/06/2015–31/09/2015   Ice Core Laboratory Analyst, British Antarctic Survey, Cambridge, UK. Responsibilities: Assisting with continuous flow analysis of i-STAR shallow cores from West Antarctica; development of analytical technique for halogen measurements on ice core samples.

07/2014–31/05/2015    Research Associate, College of Earth, Ocean and Atmospheric Sciences, Oregon State University, USA. Research focus: Abrupt, sub-millennial climate changes of Last Glacial; non-climatic artefacts in ice core methane records; centennial scale methane variability. Supervisor: Prof. Edward J. Brook

06/2011–06/2014    Postdoctoral Scholar, College of Earth, Ocean and Atmospheric Sciences, Oregon State University, USA. Research focus: Development and application of laser spectroscopy to continuous measurement of trace gas concentrations in ice cores. Supervisor: Prof. Edward J. Brook

2012                Ph.D. Geology, Victoria University of Wellington, New Zealand. Thesis title: Insights into Late Holocene climate of the Ross Sea Region, Antarctica, from high resolution ice core chemistry. Supervisors:  Dr. Nancy A.N. Bertler and Prof. Joel A. Baker

2007                MGeol (Hons) Environmental Geology (International) (1st class), University of Leeds, UK


Research Interests

ice cores; abrupt climate change; methane biogeochemistry; ice core chemistry; sea ice reconstructions; continuous ice core gas measurement; chemical transport modelling


palaeoclimate reconstructions ; Geochemistry ; Stable isotopes ; Computer Simulations

Key Publications

Google Scholar profile


>>>>>>>>> Under review <<<<<<<<<<<<

Yang, X., Frey, M. M., Rhodes, R. H., Norris, S. J., Brooks, I. M., Anderson, P. S., Nishimura, K., Jones, A. E., and Wolff, E. W.: Sea salt aerosol production via sublimating wind-blown saline snow particles over sea-ice: parameterizations and relevant micro-physical mechanisms, Atmos. Chem. Phys. Discuss.,, in review, 2018.

J. Menking, E. Brook, S. Shackleton, J. Severinghaus, M. Dyonisius, V. Petrenko, J. McConnell, R. H. Rhodes, T. Bauska, D. Baggenstos, S. Marcott, and S. Barker, Spatial pattern of accumulation at Taylor Dome during the last glacial inception: Stratigraphic constraints from Taylor Glacier. under review at Climate of the Past Discussions

L. Sime, Hopcroft, P., Rhodes, R. H., The impact of Dansgaard-Oeschger sea ice loss on Greenland. under review at PNAS

>>>>>>>>> Published <<<<<<<<<<<<

P. C. Tzedakis, Drysdale, R. N., Margari, V., Skinner, L., Menviel, L. Rhodes, R. H. et al., 2018. Enhanced climate instability in the North Atlantic and S Europe during the Last Interglacial. Nature Communications 9:4235

A. Landais, Capron, E., Masson-Delmotte, V., Toucanne, S., Rhodes, R. H. et al., 2018. Ice core evidence for mid-latitude atmospheric water cycle reorganization during the Greenland cold phase of the last deglaciation. Climate of the Past, 14, 1405-1415,

R. H. Rhodes, Yang, X., Wolff, E. W., 2018. Sea Ice Versus Storms: What Controls Sea Salt in Arctic Ice Cores? Geophysical Research Letters,

McConnell, J. R., and 30 authors including R. H. Rhodes, 2017. Volcanic eruptions precisely coincident with abrupt climate change ~17.7k years ago plausibly linked by stratospheric ozone loss. Proceedings of the National Academy of Sciences, doi: 10.1073/pnas.1705595114

Rhodes, R. H., Yang, X., Wolff, E. W., McConnell, J. R., and Frey, M. M., 2017, Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study, Atmospheric Chemistry & Physics, 17, 9417-9433,

Rhodes, R. H., E. J. Brook, J. R. McConnell, T. Blunier, L. C. Sime, X. Faïn, R. Mulvaney, 2017. Atmospheric methane variability: Centennial scale signals in the Last Glacial Period.  Global Biogeochemical Cycles, 1, 575590, doi:10.1002/2016GB005570.

Maselli, O. J., Chellman, N. J., Grieman, M., Layman, L., McConnell, J. R., Pasteris, D., Rhodes, R. H., Saltzman, E., and Sigl, M., 2017. Sea ice and pollution-modulated changes in Greenland ice core methanesulfonate and bromine, Climate of the Past, 13, 39-59, doi:10.5194/cp-13-39-2017.

Rhodes, R. H., X. Faïn, E. J. Brook, J. R. McConnell, M. Sigl, O. Maselli, J. Edwards, C. Buizert, T. Blunier, J. Chappellaz, J. Freitag, 2016. Local artifacts in ice core methane records caused by layered bubble trapping and in-situ production: a multi-site investigation. Climate of the Past, 12, 1061-1077, doi:10.5194/cp-12-1061-2016.

Sigl, M. and 26 authors including R. H. Rhodes, 2016. The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0-31 ka BP). Climate of the Past, 12, 769-786, doi:10.5194/cp-12-769-2016.

Rhodes, R. H., E. J. Brook, J. Chiang, T. Blunier, O. J. Maselli, J. R. McConnell, D. Romanini, J. P. Severinghaus,2015. Enhanced tropical methane production in response to iceberg discharge in the North Atlantic. Science, 1016-1019. 10.1126/science.1262005.

***WAIS Divide continuous methane data are available to download at USAP data centre: awardID 609628**

WAIS Divide Project Members including R. H. Rhodes, 2015. Precise interhemispheric phasing of the bipolar seesaw during abrupt Dansgaard-Oeschger events. Nature, 520, 661-665.

Mitchell, L. E., C. Buizert, E. J. Brook, D. Breton, J. Fegyveresi, D. Baggenstos, A. Orsi, J. Severinghaus, R. B. Alley, M. Albert, R. H. Rhodes, J. R. McConnell, M. Sigl, O. Maselli, S. Gregory, J. Ahn, 2015. Observing and modeling the influence of layering on bubble trapping in polar firn. Journal of Geophysical Research: Atmospheres, 120, doi:10.1002/2014JD022766.

Buizert, C., K. M. Cuffey, J. P. Severinghaus, D. Baggentos, T. J. Fudge, E. J. Steig, B. R. Markle, M. Winstrup, R. H. Rhodes et al., 2015. The WAIS-Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age-ice age difference. Climate of the Past, 11, 153–173.

Faïn, X., J. Chappellaz, R. H. Rhodes, C. Stowasser, T. Blunier, J. R. McConnell, E. J. Brook, M. Legrand, T. Debois, D. Romanini, 2014. High resolution measurements of carbon monoxide along a late Holocene Greenland ice core: evidence for in-situ production. Climate of the Past, 10, 987–1000.

Rhodes, R. H., X. Faïn, C. Stowasser, T. Blunier, J. Chappellaz, J. R. McConnell, D. Romanini, L. E. Mitchell, E. J. Brook, 2013.  Continuous methane measurements from a late-Holocene Greenland ice core: atmospheric and in-situ signals. Earth and Planetary Science Letters, 368, 9–19.

Rhodes, R. H., N. A. N. Bertler, J. A. Baker, H. C. Steen-Larsen, S. B. Sneed, U. Morgenstern, S. J. Johnsen, 2012.  Little Ice Age climate and oceanic conditions of the Ross Sea, Antarctica, from a coastal ice core record. Climate of the Past, 8, 1223–1238. [PDF]

Rhodes, R. H., J. A. Baker, M-A. Millet, N. A. N. Bertler, 2011. Experimental investigation of the effects of mineral dust on the reproducibility and accuracy of ice core trace element analyses. Chemical Geology, 286, 207222doi:10.1016/j.chemgeo.2011.05.006

Purdie, H., N. A. N. Bertler, A. Mackintosh, J. A. Baker, R. H. Rhodes, 2010. Isotopic and elemental changes in winter snow accumulation on glaciers in the Southern Alps of New Zealand. Journal of Climate 23, doi: 10.1175/2010JCLI3701.1

Rhodes, R. H., N. A. N. Bertler, J. A. Baker, S. B. Sneed, H. Oerter, K. R. Arrigo, 2009. Sea ice variability and primary productivity in the Ross Sea, Antarctica, from methylsulphonate snow record. Geophysical Research Letters 36, L10704, doi:10.1029/2009GL037311.











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