PUBLICATIONS

2022

Li, X., Wang, N., Ding, Y., Hawkings, J. R., Yde, J. C., Raiswell, R., Liu, J., Zhang, S., Kang, S., Wang, R., Liu, Q., Liu, S., Bol, R., You, X., Li, G. (2022) Globally Elevated Chemical Weathering Rates beneath Glaciers, Nature Communications, 13(1), 407.

Ng, H. C., Hawkings, J. R., Bertrand, S., Summers, B. A., Sieber, M., Conway, T., Pryer, H. V., Wadham, J. L., Hendry, K. R. (2022) Coupling of (benthic) silicon and iron cycling in a Patagonian fjord, Earth and Planetary Science Letters, https://doi.org/10.1029/2022GB007493

Dubnick, A., Faber, Q., Hawkings, J. R., Bramall, N., Christner, B. C., Doran, P. T., Nadeau, J., Snyder C., Kellerman, A. M., McKenna, A. M., Spencer, R. G. M., Skidmore, M. L. (2022) Biogeochemical responses to mixing of glacial meltwater and hot spring discharge in the Mount St. Helens crater, Journal of Geophysical Research: Biogeosciences, e2022JG006852

Jachnická, K., Kohler, T., Falteisek, L., Vinšová, P., Bulínová, M., Lamarche-Gagnon, G., Hofer, S., Hawkings, J. R., Kellerman, A., Holt, A., Cameron, K., Schön, M., Stibal, M. (2022) Catchment characteristics and seasonality control the composition of microbial assemblages exported from three outlet glaciers of the Greenland Ice Sheet, Frontiers of Microbiology

2021

Hawkings, J. R., Linhoff, B., Wadham, J. L., Stibal, M., Lamborg, C., Carling, G., Falteisek, L., Ward, R., Hendry, K., Lamarche-Gagnon, G., Kohler, T., Kellerman, A., Cameron, K., Hatton, J., Tingey, S., Holt, A., Vinsova, P., Hofer, S., Bulinova, M., Vetrovsky, T., Meire, L., Spencer, R. G. M. (2021) Large meltwater source of mercury from the southwestern margin of the Greenland Ice Sheet, Nature Geoscience, 14, 496-502

Marshall, M. G., Kellerman, A. M., Wadham, J. L., Hawkings, J. R., Pryer, H. V., Beaton, A., Urra, A. and Spencer, R. G. M. (2021) Seasonal changes in dissolved organic matter composition in a Patagonian fjord affected by glacier melt inputs, Frontiers in Marine Science, 276(8)

Chandler, D. M., Wadham, J. L., Nienow, P. W., Doyle, S. H., Tedstone, A. J., Telling, J., Hawkings, J. R., Alcock, J. D., Linhoff, B., Hubbard, A. L. (2021) Rapid development and persistence of efficient subglacial drainage under 900 m-thick ice in Greenland, Earth and Planetary Science Letters, 566, 116982

Bagshaw, E., Wadham, J., Beaton, A., Tranter, M., Mowlem, M., Hawkings, J. R., Lamarche-Gagnon, G. (2021) Measuring pH in low ionic strength glacial meltwaters using ion selective field effect transistor (ISFET) technology, Limnology and Oceanography Methods, doi: 10.1002/lom3.10416

Piret, L., Bertrand, S., Hawkings, J. R., Kylander, M. E., Torrejon, F., Amann, B. and Wadham, J. (2021) High-resolution fjord sediment record of a retreating glacier with growing intermediate proglacial lake (Steffen Fjord, Chilean Patagonia), Earth Surface Processes and Landforms, doi: 10.1002/esp.5015

Hatton, J. E., Hendry, K. R., Hawkings, J. R., Wadham, J. L., Benning, L. G., Blukis, R., Roddatis, V., Ng, H .C., Wang, T. (2021) Physical Weathering by Glaciers Enhances Silicon Mobilisation and Isotopic Fractionation, Geochemical Perspectives Letters, 19, 7–12

Treguer, P., Sutton, J., Baines, S., Brzezinski, M., Charette, M., Devries, T., Dutkiewicz, S., Ehlert, C., Hawkings, J. R., Leynaert, A., Liu, S. M., Lopez-Acosta, M., Llopis-Monferrer, N., Maldonado, M., Rahman, S., Ran, L., Rouxel, O. (2021) The biogeochemical cycle of silicon in the modern ocean, Biogeosciences, 18, 1269–1289

Kellerman, A. M., Vonk, J., McColaugh, S., Podorski, D. C., van Winden, E., Hawkings, J. R., Johnston, S. E., Humayun, M., Spencer, R. G. M. (2021) Molecular signatures of Arctic glacial dissolved organic matter from Svalbard and Greenland, Global Biogeochemical Cycles, 35, e2020GB006709

Vaughn, D. R., Kellerman, A. M., Wickland, K. P., Striegl, R. G., Podgorski, D. C., Hawkings, J. R., Nienhuis, J. H., Dornblaser, M. M., Stets, E. G., Spencer, R. G. M. (2021) Anthropogenic Landcover Impacts Fluvial Dissolved Organic Matter Composition in the Upper Mississippi River Basin, Biogeochemistry, https://doi.org/10.1007/s10533-021-00852-1

2020

Hawkings, J. R., Skidmore, M. L., Wadham, J. L., Priscu, J. C., Morton, P. L., Hatton, J. E., Gardner, C. B., Kohler, T. J., Stibal, M., Bagshaw, E. A., Steigmeyer, A., Barker, J., Dore, J. E., Lyons, W. B., Tranter, M., Spencer, R. G. M. (2020) Enhanced trace element mobilization by Earth’s ice sheets, Proceedings of the National Academy of Sciences, 202014378

Pryer, H., Hatton, J., Wadham, J. L., Hawkings, J. R., Robinson, L. F., Kellerman, A. M., Marshall, M., Urra, A., Covey, A., Daneri, G., Hausserman, V., Hendry, K. R. (2020) The Effects of Glacial Cover on Riverine Silicon Isotope Compositions in Chilean Patagonia, Frontiers in Earth Science, 8, 368

Kellerman, A., Hawkings, J. R., Wadham, J. L., Kohler, T. J., Stibal, M., Grater, E., Marshall, M., Hatton, J. E., Beaton, A., Spencer, R. G. M. (2020) Glacier outflow dissolved organic matter as a window into seasonally changing carbon sources: Leverett Glacier, GreenlandJournal of Geophysical Research – Biogeosciences, 125

Kohler, T. J., Vinšová, P., Falteisek, L., Žárský, J. D., Yde, J. C., Hatton, J. E., Hawkings, J. R., Lamarche-Gagnon, G., Hood, E., Cameron, K., Stibal, M. (2020) Patterns in microbial assemblages exported from the meltwater of Arctic and sub-Arctic glaciersFrontiers in Microbiology, 11:669

Lamarche-Gagnon, G., Anesio, A. M., Wadham, J. L., Žárský, J. D., Kohler, T. J., Bagshaw, E., A., Telling, J., Hawkings, J. R.,Stibal, M. (2020) Meltwater runoff from the Greenland Ice Sheet reveals microbial consortia from contrasting subglacial drainage systems, bioRxiv 2020.05.26.116566 preprint

Pryer, H., Hawkings, J. R., Wadham, J. L., Robinson, L. F., Hendry, K. R., Hatton, J. E., Kellerman, A. M., Bertrand, S., Gill Olivas, B., Marshall, M., Brooker, R. A., Daneri, G. (2020) Glacial Cover Affects Silicon and Iron Export from Rivers in Chilean Patagonia, Global Biogeochemical Cycles

2019

Wadham, J. L., Hawkings, J. R., Tarasov, L., Gregoire, L., Spencer, R., Gutjahr, M., Ridgewell, A. (2019) Why ice sheets matter for the global carbon cycle, Nature Communications, 10: 3567

Hatton, J., Hendry, K. R., Hawkings, J. R., Wadham, J., Kohler, T., Stibal, M., Beaton, A., Baghsaw, E. A., Telling, J. (2019) Investigation of subglacial weathering under the Greenland Ice Sheet using silicon isotopes, Geochimica y Geochemistria Acta, 247, 191-206

Lamarche-Gagnon, G., Wadham, J. L., Sherwood-Lollar, B., Arndt, S., Lacrampe-Couloume, G., Fietzek, P., Beaton, A. D., Tedstone, A. J., Telling, J., Bagshaw, E., Hawkings, J. R., Kohler, T., Zarsky, J. D., Stibal, M., Mowlem, M. C. (2019) Continuous pulsed export of methane-supersaturated runoff from the Greenland Ice Sheet, Nature, 565 (7737), 73

Urra, A., Wadham, J. L., Hawkings, J. R., Telling, J., Hatton, J., Yde, J. C., Hasholt, B., van As, D., Bhatia, M., Nienow, P. (2019) Weathering dynamics under contrasting hydrological forcing regimes in Greenland Ice Sheet catchments, Frontiers in Earth Science, 7:229

Hatton, J., Hendry, K. R., Hawkings, J. R., Wadham, J., Opfergelt, S., Kohler, T., Yde, J. C., Stibal, M., Žárský, J. (2019) Silicon isotopes in Arctic and sub-Arctic glacial meltwaters: the role of subglacial weathering in the silicon cycle, Proceedings of the Royal Society a-Mathematical Physical and Engineering Sciences, 475, 20190098

2018

Hawkings, J. R., Hatton, J., Hendry, K. R., de Souza, G. F., Wadham, J. L., Ivanovic, R., Kohler, T., Stibal, M., Beaton, A., Lamarche-Gagnon, G., Tedstone, A., Hain, M. P., Pike, J., Tranter, M. (2018) The global silicon cycle impacted by past ice sheets, Nature Communications

Žárský, J. D., Kohler, T. J., Yde, J. C., Falteisek, L., Lamarche-Gagnon, G., Hawkings, J. R., Stibal, M. (2018) Prokaryotic assemblages in suspended and subglacial sediments within a glacierized catchment on Qeqertarsuaq (Disko Island), west Greenland, Frontiers of Microbiology, 94(7),

Hawkings, J. R., Benning, L. G., Raiswell, R., Kaulich, B., Araki, T., Abyaneh, M., Stockdale, A., Kock-Muller, M., Wadham, J., Tranter, M. (2018) Bioavailable ferrous iron nanoparticles in glacial sediments, Earth and Planetary Science Letters, 493: 92-101

Raiswell, R., Hawkings, J. R., Elsenousy, A., Death, R., Tranter, M., Wadham, J. L. (2018) Iron in Arctic Glacial Sediments: Measurement, Reactivity, Freezing Behaviour and Speciation, Frontiers in Earth Science, 6, 222

2017

Hawkings, J. R., Wadham, J. L., Benning, L. G., Hendry, K. R., Tranter, M., Tedstone, A., Nienow, P., Raiswell, R. (2017) Ice sheets as a missing source of silica to the world’s oceans, Nature Communications, 8

Dubnick, A., Kazemi, S., Sharp, M., Wadham, J., Hawkings, J., Lanoil, B. (2017) Hydrological controls on glacially-exported microbial assemblages, JGR-Biogeosciences, doi: 10.1002/2016JG003685

Beaton, A. D., Wadham, J. L., Hawkings, J., Bagshaw, E., Lamarche-Gagnon, G., Mowlem, M. C., Tranter, M. (2017) High-resolution in situ measurement of nitrate in runoff from the Greenland Ice Sheet, Environmental Science and Technology, 51(21): 12518-12527

Kohler, T. J., Zarsky, J. D., Yde, J. C., Lamarche-Gagnon, G., Hawkings, J. R., Tedstone, A., Wadham, J. L., Box, J. E., Beaton, A., Stibal, M. (2017) Carbon dating of POC exported from beneath the Greenland Ice Sheet reveals seasonal shifts in sediment source, Geophysical Research Letters, 44, doi:10.1002/2017GL073219

Raiswell, R., Hawkings, J. R., Benning, L., Albani, S., Mahowald, N. (2017) Comments on Influence of measurement uncertainties on fractional solubility of iron in mineral aerosols over the oceans, Aeolian Research, 22: 85-92

2016

Hawkings, J. R, Wadham, J. L., Tranter, M., Telling J., Bagshaw, E., Beaton, A., Simmons, S-L., Chandler, D., Tedstone, A., Nienow, P. (2016) The Greenland Ice Sheet as a hotspot of phosphorus export in the Arctic, Global Biogeochemical Cycles, 30: 191-210

Bagshaw, E., Beaton, A., Wadham, J., Mowlem, M., Hawkings, J. R., Tranter, M. (2016) Chemical sensors for in situ data collection in icy meltwaters, Trends in Analytical Chemistry, 82, 348-357, doi: 10.1016/j.trac.2016.06.016

Cameron K., Stibal, M., Hawkings, J. R., Mikkelsen, A. B., Telling, J., Kohler, T. J., Gözdereliler, E., Zarsky, J. D., Wadham, J., Jacobsen, C. S. (2016) Meltwater export of prokaryotic cells from the Greenland ice sheet, Environmental Microbiology, 19(2): 524-534

Wadham, J. L., Hawkings, J. R., Telling, J., Chandler, D., Alcock, J., Lawson, E., Monteiro, F., Kaur, P., Bagshaw, E. A., Tranter, M., Tedstone, A., Nienow, P. and Mikelssen, A. (2016) Sources, cycling and export of nitrogen on the Greenland Ice Sheet, Biogeosciences, doi:10.5194/bg-13-6339-2016

Raiswell R., Hawkings, J. R., Benning, L. G., Baker, A. R., Krom, M. D., Death, R., Poulton, S. W., Wadham, J., Tranter, M. (2016) Potentially bioavailable iron delivery by iceberg-hosted sediments and atmospheric dust to the polar oceans, Biogeosciences, doi: 10.5194/bg-13-3887-2016

2015

Hawkings, J. R., Wadham, J. L., Tranter, M., Lawson, E., Sole, A., Cowton, T., Tedstone, A. J., Bartholomew, I., Nienow, P., Chandler, D., Telling, J. (2015) The impact of climatic warming on nutrient and solute export from the Greenland Ice Sheet, Geochemical Perspectives Letters, 1: 94-104

2014

Hawkings, J. R., Wadham, J. L., Tranter, M., Raiswell, R., Benning, L. G., Statham, P., Tedstone, A., Nienow, P., Lee, K. and Telling, J. (2014) Ice sheets as a significant source of highly reactive nanoparticulate iron to the oceans, Nature Communications, 5, doi:10.1038/ncomms4929

Telling, J., Anesio, A. M., Tranter, M., Fountain, A., Nylen, T., Hawkings, J. R., Singh, V. B., Kaur, P., Musilova, M., Wadham, J. L. (2014) Spring thaw ionic pulses boost nutrient availability and microbial growth in entombed Antarctic Dry Valley cryoconite holes, Frontiers in Microbiology, 5, doi:10.3389/fmicb.2014.00694

2012

Telling, J., Anesio, A. M., Tranter, M., Stibal, M., Hawkings, J. R., Irvine-Fynn, T., Hodson, A., Butler, C., Yallop, M. L. and Wadham, J. L. (2012) Controls on the autochthonous production and respiration of organic matter in cryoconite holes on High Arctic glaciers, Journal of Geophysical Research: Biogeosciences, 117, G1

2011

Telling, J., Anesio, A. M., Hawkings, J. R., Tranter, M., Wadham, J. L., Hodson, A. J., Irvine-Fynn, T., Yallop, M. L. (2011) Measuring rates of gross photosynthesis and net community production in cryoconite holes: a comparison of field methods, Annals of Glaciology, 51(56), 153-162