Mae gennym ddiddordeb yn sut mae bywyd yn bodoli mewn amgylcheddau eithafol a sut mae prosesau yn y lleoedd oeraf yn dylanwadu ar y modd y mae'r Ddaear gyfan yn gweithio.
The cold climate research group unites cross-disciplinary scientists in the School of Earth and Ocean Sciences who are interested in processes in some of the most extreme environments on Earth.
Our studies develop insights into the state, behaviour and dynamics of Earth system processes in the polar regions through a combination of field research, laboratory experimentation and numerical modelling.
We are interested in how life exists in extreme environments and how processes in the coldest places influence the workings of the whole Earth.
We aim to understand the causes and consequences of change in the Earth system by using glaciology, biogeochemistry, microbiology, palaeoceanography and palaeoecology.
Bagshaw, E. Novel geophysical sensors for snow monitoring. Royal Astronomical Society. 1 January 2017-31 December 2017, £1,000
Bagshaw, E. Polar snow in a warming world. The Percy Sladen Memorial Fund. 1 April 2017-31 April 2018, £700
Bagshaw, E. Cryoegg: a novel wireless instrument for exploring deep ice. EPSRC. January 2019-January 2021, £291,000
Mikis, A. and Pike, J. The use of individual planktonic foraminifera from sediment traps to assess seasonal variability along the West Antarctic Peninsula. Antarctic Science Ltd. 1 June 2015-31 May 2016, £4,700
Mitchison, F. and Pike, J. Exploring the utility of diatom silica oxygen isotopes as a proxy for Pliocene EAIS retreat. Antarctic Science Ltd. 3 August 2017-31 March 2018, £4,988
Perkins, R. The Longyearbreen Glacier, Svalbard. British Phycological Society Small Grant. August 2015, £950
Pike, J. IceMelt 200: A 200 year record of glacier melting in the Amundsen Sea. British Antarctic Survey Collaboration Voucher. 1 March 2017-28 February 2018, £3,650
Pike, J., Swann, G. E. A., Leng, M. J. and Leventer, A. Tracing icebergs around East Antarctica - an indication of past ice sheet dynamics? NERC Isotope Geoscience Facility Steering Committee IP-1733-0517. June 2017, £32,000
Poniecka, E. and Bagshaw, E. Microbial community structure changes during temporal development of cryoconite holes. Antarctic Science Ltd. 1 June 2017-31 May 2019, £4,590
Williams, J., Pike, J., Swann, G. E. A. Leng, M. J., and Allen, C.S. Late Quaternary Antarctic ice sheet glacial discharge: exploiting the sediment diatom silica isotope archive. NERC Isotope Geoscience Facility Steering Committee IP 1773-1117. November 2017, £44,000
- Hendry, K. R. et al., 2019. The biogeochemical impact of glacial meltwater from Southwest Greenland. Progress in Oceanography 176 102126. (10.1016/j.pocean.2019.102126)
- Lamarche-Gagnon, G. et al., 2019. Greenland melt drives continuous export of methane from the ice-sheet bed. Nature 565 , pp.73-77. (10.1038/s41586-018-0800-0)
- Bagshaw, E. et al. 2018. Prototype wireless sensors for monitoring subsurface processes in snow and firn. Journal of Glaciology 64 (248), pp.887-896. (10.1017/jog.2018.76)
- Hawkings, J. R. et al., 2018. The silicon cycle impacted by past ice sheets. Nature Communications 9 , pp.-. 3210. (10.1038/s41467-018-05689-1)
- Alley, K. et al., 2018. Iceberg Alley, East Antarctic Margin: Continuously laminated diatomaceous sediments from the late Holocene. Marine Micropaleontology 140 , pp.56-68. (10.1016/j.marmicro.2017.12.002)
- Perkins, R. G. et al. 2017. Photoacclimation by Arctic cryoconite phototrophs. FEMS Microbiology Ecology 93 (5) fix018. (10.1093/femsec/fix018)
- Montserrat, F. et al., 2017. Olivine dissolution in seawater: implications for CO2 sequestration through Enhanced Weathering in coastal environments. Environmental Science & Technology 51 (7), pp.3960-3972. (10.1021/acs.est.6b05942)
- Swann, G. E. A. et al., 2017. Temporal controls on silicic acid utilisation along the West Antarctic Peninsula. Nature Communications 8 14645. (10.1038/ncomms14645)
- Anderson, N. J. et al., 2017. The Arctic in the twenty-first century: changing biogeochemical linkages across a paraglacial landscape of Greenland. BioScience 67 (2), pp.118-133. (10.1093/biosci/biw158)
- Swann, G. E. A. , Snelling, A. M. and Pike, J. 2016. Biogeochemical cycling in the Bering Sea over the onset of major Northern Hemisphere Glaciation. Paleoceanography 31 (9), pp.1261-1269. (10.1002/2016PA002978)
- Bagshaw, E. et al. 2016. Chemical sensors for in situ data collection in the cryosphere. Trends in Analytical Chemistry 82 , pp.348-357. (10.1016/j.trac.2016.06.016)
- Welsby, H. J. , Hendry, K. R. and Perkins, R. 2016. The role of benthic biofilm production in the mediation of silicon cycling in the Severn Estuary, UK. Estuarine, Coastal and Shelf Science 176 , pp.124-134. (10.1016/j.ecss.2016.04.008)
- Bagshaw, E. et al. 2016. Response of Antarctic cryoconite microbial communities to light. FEMS Microbiology Ecology 92 (6) fiw076. (10.1093/femsec/fiw076)
- Perkins, R. G. et al. 2016. Microspatial variability in community structure and photophysiology of calcified macroalgal microbiomes revealed by coupling of hyperspectral and high-resolution fluorescence imaging. Scientific Reports 6 22343. (10.1038/srep22343)
- Renforth, P. , Pogge von Strandmann, P. A. E. and Henderson, G. M. 2015. The dissolution of olivine added to soil: implications for enhanced weathering. Applied Geochemistry 61 , pp.109-118. (10.1016/j.apgeochem.2015.05.016)
Specialist low temperature environmental simulation cabinets
The cold climate laboratory has Weiss Low Temperature simulation cabinets, which can mimic conditions in some of the most extreme environments on Earth. We can control light, temperature (-40°C to +80°C) and gas content.
Precision titration facilities
We use Unisense optodes and electrodes to measure oxygen and pH at the microscale.
Field measurement of meteorological, water and biogeochemical parameters
We can measure and log a variety of biogeochemical parameters (pH, EC, light) using Campbell Scientific data loggers and associated probes in the laboratory and in the field.
We use a Fast Rapid Rate Fluorometer (Photon Systems Instruments 3500F) to measure the photophysiology of microalgae and cyanobacteria cultured in our Weiss Low Temperature cabinets. The FRRF can measure photoacclimation as well as standard proxies of productivity and down regulation.