Papers

Preprints

Short-term responses to ocean acidification: effects on relative abundance of eukaryotic plankton from the tropical Timor Sea.

Rahlff, J., Khodami, S., Voskuhl, L., Humphreys, M. P., Stolle, C., Martinez Arbizu, P., Wurl, O. and Ribas-Ribas, M. (2020).

bioRxiv, 2020.04.30.068601, doi:10.1101/2020.04.30.068601.

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2020

Air-sea CO2 exchange and ocean acidification in UK seas and adjacent waters.

Humphreys, M. P., Artioli, Y., Bakker, D. C. E., Hartman, S. E., León, P., Wakelin, S., Walsham, P. and Williamson, P. (2020).

In MCCIP Science Review 2020, 54-75, doi:10.14465/2020.arc03.oac.

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The pH dependency of the boron isotopic composition of diatom opal (Thalassiosira weissflogii).

Donald, H. K., Foster, G. L., Fröhberg, N., Swann, G. E. A., Poulton, A., Moore, C. M. and Humphreys, M. P. (2020).

Biogeosciences 17, 2825-2837, doi:10.5194/bg-17-2825-2020.

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2019

Mechanisms for a nutrient-conserving carbon pump in a seasonally stratified, temperate continental shelf sea.

Humphreys, M. P., Achterberg, E. P., Hopkins, J. E., Chowdhury, M. Z. H., Griffiths, A. M., Hartman, S. E., Hull, T., Smilenova, A., Wihsgott, J., Woodward, E. M. S. and Moore, C. M. (2019).

Progress in Oceanography 177, 101961, doi:10.1016/j.pocean.2018.05.001.

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Modelling seawater carbonate chemistry in shellfish aquaculture regions: Insights into CO2 release associated with shell formation and growth.

Morris, J. P. and Humphreys, M. P. (2019).

Aquaculture 501, 338-344, doi:10.1016/j.aquaculture.2018.11.028.

Surface ocean carbonate chemistry and air-sea CO2 fluxes across the northwest European continental shelf sea.

Hartman, S. E., Humphreys, M. P., Kivimäe, C., Woodward, E. M. S., Kitidis, V., McGrath, T., Hydes, D. J., Greenwood, N., Hull, T., Ostle, C., Pearce, D. J., Sivyer, D., Stewart, B. M., Walsham, P., Painter, S. C., McGovern, E., Harris, C., Griffiths, A., Smilenova, A., Clarke, J., Davis, C., Sanders, R. and Nightingale, P. (2019).

Progress in Oceanography 177, 101909, doi:10.1016/j.pocean.2018.02.005.

Winter weather controls net influx of atmospheric CO2 on the north-west European shelf.

Kitidis, V., Shutler, J. D., Ashton, I., Warren, M., Brown, I., Findlay, H., Hartman, S. E., Sanders, R., Humphreys, M., Kivimäe, C., Greenwood, N., Hull, T., Pearce, D., McGrath, T., Stewart, B. M., Walsham, P., McGovern, E., Bozec, Y., Gac, J.-P., van Heuven, S. M. A. C., Hoppema, M., Schuster, U., Johannessen, T., Omar, A., Lauvset, S. K., Skjelvan, I., Olsen, A., Steinhoff, T., Körtzinger, A., Becker, M., Lefevre, N., Diverrès, D., Gkritzalis, T., Cattrijsse, A., Petersen, W., Voynova, Y.G., Chapron, B., Grouazel, A., Land, P. E., Sharples, J. and Nightingale, P. D. (2019).

Scientific Reports 9, 20153, doi:10.1038/s41598-019-56363-5.

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Impact of Nonzero Intercept Gas Transfer Velocity Parameterizations on Global and Regional Ocean–Atmosphere CO2 Fluxes.

Ribas-Ribas, M., Battaglia, G., Humphreys, M. P. and Wurl, O. (2019).

Geosciences 9(5), 230, doi:10.3390/geosciences9050230.

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Isotopic fractionation of carbon during uptake by phytoplankton across the South Atlantic subtropical convergence.

Tuerena, R. E., Ganeshram, R. S., Humphreys, M. P., Browning, T. J., Bouman, H. and Piotrowski, A. P. (2019).

Biogeosciences 16, 3621-3635, doi:10.5194/bg-16-3621-2019.

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What drives the latitudinal gradient in open ocean surface dissolved inorganic carbon concentration?

Wu, Y., Hain, M. P., Humphreys, M. P., Hartman, S. and Tyrrell, T. (2019).

Biogeosciences 16, 2661-2681, doi:10.5194/bg-16-2661-2019.

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2018

  • Humphreys, M. P., Daniels, C. J., Wolf-Gladrow, D. A., Tyrrell, T. and Achterberg, E. P. (2018). On the influence of marine biogeochemical processes over CO2 exchange between the atmosphere and ocean. Marine Chemistry 199, 1-11. doi:10.1016/j.marchem.2017.12.006.

  • Henson, S. A., Humphreys, M. P., Land, P., Shutler, J., Goddijn-Murphy, L., Warren, M. and Schuster, U. (2018). Controls on open-ocean North Atlantic ΔpCO2 at seasonal and interannual timescales are different. Geophysical Research Letters 45. doi:10.1029/2018GL078797.

  • Richier, S., Achterberg, E. P., Humphreys, M. P., Poulton, A. J., Suggett, D. J., Tyrrell, T. and Moore, C. M. (2018). Geographical CO2 sensitivity of phytoplankton correlates with ocean buffer capacity. Global Change Biology 24, 4438-4452. doi:10.1111/gcb.14324.

  • Schlitzer, R. et al. [286 authors] (2018). The GEOTRACES Intermediate Data Product 2017. Chemical Geology 493, 210-223. doi:10.1016/j.chemgeo.2018.05.040.

2017

  • Humphreys, M. P. (2017). Climate sensitivity and the rate of ocean acidification: future impacts, and implications for experimental design. ICES Journal of Marine Science 74(4), 934–940. doi:10.1093/icesjms/fsw189.

  • Giering, S. L. and Humphreys, M. P. (2017). Biological Pump. In Encylopedia of Geochemistry, ed. White, W. M., Springer, 1–6. doi:10.1007/978-3-319-39193-9_154-1.

  • Clarke, J. S., Humphreys, M. P., Tynan, E., Kitidis, V., Brown, I., Mowlem, M. C. and Achterberg, E. P. (2017). Characterization of a Time-Domain Dual Lifetime Referencing pCO2 Optode and Deployment as a High-Resolution Underway Sensor across the High Latitude North Atlantic Ocean. Frontiers in Marine Science 4(396). doi:10.3389/fmars.2017.00396.

2016

  • Humphreys, M. P., Greatrix, F. M., Tynan, E., Achterberg, E. P., Griffiths, A. M., Fry, C. H., Garley, R., McDonald, A. and Boyce, A. J. (2016). Stable carbon isotopes of dissolved inorganic carbon for a zonal transect across the subpolar North Atlantic Ocean in summer 2014. Earth System Science Data 8, 221–233. doi:10.5194/essd-8-221-2016.

  • Humphreys, M. P., Griffiths, A. M., Achterberg, E. P., Holliday, N. P., Rérolle, V. M. C., Menzel Barraqueta, J.-L., Couldrey, M. P., Oliver, K. I. C., Hartman, S. E., Esposito, M. and Boyce, A. J. (2016). Multidecadal accumulation of anthropogenic and remineralized dissolved inorganic carbon along the Extended Ellett Line in the northeast Atlantic Ocean. Global Biogeochemical Cycles 30(2), 293–310. doi:10.1002/2015GB005246.

  • Bakker, D. C. E. et al. [92 authors] (2016). A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO2 Atlas (SOCAT). Earth System Science Data 8, 383–413. doi:10.5194/essd-8-383-2016.

  • Becker, M., Andersen, N., Erlenkeuser, H., Humphreys, M. P., Tanhua, T. and Körtzinger, A. (2016). An internally consistent dataset of δ13C-DIC in the North Atlantic Ocean – NAC13v1. Earth System Science Data 8, 559–570. doi:10.5194/essd-8-559-2016.

  • Daniels, C. J., Poulton, A. J., Young, J. R., Esposito, M., Humphreys, M. P., Ribas Ribas, M., Tynan, E. and Tyrrell, T. (2016). Species-specific calcite production reveals Coccolithus pelagicus as the key calcifier in the Arctic Ocean. Marine Ecology Progress Series 555, 29–47. doi:10.3354/meps11820.

  • Ostle, C., Williamson, P., Artoli, Y., Bakker, D. C. E., Birchenough, S., Davis, C. E., Dye, S., Edwards, M., Findlay, H. S., Greenwood, N., Hartman, S., Humphreys, M. P., Jickells, T., Johnson, M., Landschützer, P., Parker, R., Pearce, D., Pinnegar, J., Robinson, C., Schuster, U., Silburn, B., Thomas, R., Wakelin, S., Walsham, P. and Watson, A. J. (2016). Carbon dioxide and ocean acidification observations in UK waters: Synthesis report with a focus on 2010 – 2015. Department for Environment, Food and Rural Affairs, UK, pp. 44. doi:10.13140/RG.2.1.4819.4164.

  • Poulton, A. J., Daniels, C. J., Esposito, M., Humphreys, M. P., Mitchell, E., Ribas-Ribas, M., Russell, B. C., Stinchcombe, M. C., Tynan, E. and Richier, S. (2016) Production of dissolved organic carbon by Arctic plankton communities: Responses to elevated carbon dioxide and the availability of light and nutrients. Deep-Sea Research Part II 127, 60–74. doi:10.1016/j.dsr2.2016.01.002.

  • Tynan, E., Clarke, J. S., Humphreys, M. P., Ribas-Ribas, M., Esposito, M., Rérolle, V. M. C., Schlosser, C., Thorpe, S. E., Tyrrell, T. and Achterberg, E. P. (2016). Physical and biogeochemical controls on the variability in surface pH and calcium carbonate saturation states in the Atlantic sectors of the Arctic and Southern Oceans. Deep-Sea Research Part II 127, 7–27. doi:10.1016/j.dsr2.2016.01.001.

2015

  • Humphreys, M. P., Achterberg, E. P., Griffiths, A. M., McDonald, A. and Boyce, A. J. (2015). Measurements of the stable carbon isotope composition of dissolved inorganic carbon in the northeastern Atlantic and Nordic Seas during summer 2012. Earth System Science Data 7, 127–135. doi:10.5194/essd-7-127-2015.