Seasonal resource tracking and use of sea-ice foraging habitats by albatrosses and large petrels
(2024)
Journal Article
Wakefield, E. D., McClymont, E. L., Carneiro, A. P. B., Croxall, J. P., González-Solís, J., Granroth-Wilding, H. M. V., Thorne, L., Warwick-Evans, V., Wood, A. G., Xavier, J. C., & Phillips, R. A. (online). Seasonal resource tracking and use of sea-ice foraging habitats by albatrosses and large petrels. Progress in Oceanography, https://doi.org/10.1016/j.pocean.2024.103334
Outputs (80)
Controls on Sr/Ca, S/Ca, and Mg/Ca in Benthic Foraminifera: Implications for the Carbonate Chemistry of the Pacific Ocean Over the Last 350 ky (2024)
Journal Article
Lawson, V. J., Rosenthal, Y., Bova, S. C., Lambert, J., Linsley, B. K., Bu, K., Clementi, V. J., Elmore, A., & McClymont, E. L. (2024). Controls on Sr/Ca, S/Ca, and Mg/Ca in Benthic Foraminifera: Implications for the Carbonate Chemistry of the Pacific Ocean Over the Last 350 ky. Geochemistry, Geophysics, Geosystems, 25(8), Article e2024GC011508. https://doi.org/10.1029/2024gc011508Boron to calcium (B/Ca) records in benthic foraminifera, used for reconstructing the carbonate ion saturation state (ΔCO3) of the deep ocean, suggest that carbon sequestration in the Southern Pacific contributed to lowering atmospheric CO2 during the... Read More about Controls on Sr/Ca, S/Ca, and Mg/Ca in Benthic Foraminifera: Implications for the Carbonate Chemistry of the Pacific Ocean Over the Last 350 ky.
Paleoclimate data provide constraints on climate models' large-scale response to past CO2 changes (2024)
Journal Article
Lunt, D. J., Otto-Bliesner, B. L., Brierley, C., Haywood, A., Inglis, G. N., Izumi, K., Kageyama, M., Kaufman, D., Mauritsen, T., McClymont, E. L., Salzmann, U., Steinig, S., Tierney, J. E., Zhao, A., & Zhu, J. (2024). Paleoclimate data provide constraints on climate models' large-scale response to past CO2 changes. Communications Earth & Environment, 5(1), https://doi.org/10.1038/s43247-024-01531-3The paleoclimate record provides a test-bed in which climate models can be evaluated under conditions of substantial CO2 change; however, these data are typically under-used in the process of model development and evaluation. Here, we use a set of me... Read More about Paleoclimate data provide constraints on climate models' large-scale response to past CO2 changes.
Controls on Sr/Ca, S/Ca, and Mg/Ca in Benthic Foraminifera: Implications for the Carbonate Chemistry of the Pacific Ocean Over the Last 350 ky (2024)
Journal Article
Lawson, V. J., Rosenthal, Y., Bova, S. C., Lambert, J., Linsley, B. K., Bu, K., Clementi, V. J., Elmore, A., & McClymont, E. L. (2024). Controls on Sr/Ca, S/Ca, and Mg/Ca in Benthic Foraminifera: Implications for the Carbonate Chemistry of the Pacific Ocean Over the Last 350 ky. Geochemistry, Geophysics, Geosystems, 25(8), Article e2024GC011508. https://doi.org/10.1029/2024gc011508Boron to calcium (B/Ca) records in benthic foraminifera, used for reconstructing the carbonate ion saturation state (ΔCO3) of the deep ocean, suggest that carbon sequestration in the Southern Pacific contributed to lowering atmospheric CO2 during the... Read More about Controls on Sr/Ca, S/Ca, and Mg/Ca in Benthic Foraminifera: Implications for the Carbonate Chemistry of the Pacific Ocean Over the Last 350 ky.
South Georgia marine productivity over the past 15 ka and implications for glacial evolution (2024)
Journal Article
Wilkin, J. T. R., Kender, S., Dejardin, R., Allen, C. S., Peck, V. L., Swann, G. E. A., …Leng, M. J. (2024). South Georgia marine productivity over the past 15 ka and implications for glacial evolution. Journal of Micropalaeontology, 43(1), 165-186. https://doi.org/10.5194/jm-43-165-2024The subantarctic islands of South Georgia are located in the Southern Ocean, and they may be sensitive to future climate warming. However, due to a lack of well-dated subantarctic palaeoclimate archives, there is still uncertainty about South Georgia... Read More about South Georgia marine productivity over the past 15 ka and implications for glacial evolution.
The role of atmospheric CO2 in controlling sea surface temperature change during the Pliocene (2024)
Journal Article
Burton, L. E., Haywood, A. M., Tindall, J. C., Dolan, A. M., Hill, D. J., McClymont, E. L., …Ford, H. L. (2024). The role of atmospheric CO2 in controlling sea surface temperature change during the Pliocene. Climate of the Past, 20(5), 1177-1194. https://doi.org/10.5194/cp-20-1177-2024We present the role of CO2 forcing in controlling Late Pliocene sea surface temperature (SST) change using six models from Phase 2 of the Pliocene Model Intercomparison Project (PlioMIP2) and palaeoclimate proxy data from the PlioVAR working group. A... Read More about The role of atmospheric CO2 in controlling sea surface temperature change during the Pliocene.
Probing the exchange of CO2 and O2 in the shallow critical zone during weathering of marl and black shale (2024)
Journal Article
Roylands, T., Hilton, R. G., McClymont, E. L., Garnett, M. H., Soulet, G., Klotz, S., …Le Bouteiller, C. (2024). Probing the exchange of CO2 and O2 in the shallow critical zone during weathering of marl and black shale. Earth Surface Dynamics, 12(1), 271-299. https://doi.org/10.5194/esurf-12-271-2024
Plio‐Pleistocene Southwest African Hydroclimate Modulated by Benguela and Indian Ocean Temperatures (2023)
Journal Article
Rubbelke, C. B., Bhattacharya, T., Feng, R., Burls, N. J., Knapp, S., & McClymont, E. L. (2023). Plio‐Pleistocene Southwest African Hydroclimate Modulated by Benguela and Indian Ocean Temperatures. Geophysical Research Letters, 50(19), Article e2023GL103003. https://doi.org/10.1029/2023gl103003Future projections of southwestern African hydroclimate are highly uncertain. However, insights from past warm climates, like the Pliocene, can reveal mechanisms of future change and help benchmark models. Using leaf wax hydrogen isotopes to reconstr... Read More about Plio‐Pleistocene Southwest African Hydroclimate Modulated by Benguela and Indian Ocean Temperatures.
Composition of planktonic foraminifera test-bound organic material and implications for carbon cycle reconstructions (2023)
Journal Article
Paoloni, T., Hoogakker, B., Navarro Rodriguez, A., Pereira, R., McClymont, E. L., Jovane, L., & Magill, C. (2023). Composition of planktonic foraminifera test-bound organic material and implications for carbon cycle reconstructions. Frontiers in Marine Science, 10, Article 1237440. https://doi.org/10.3389/fmars.2023.1237440Introduction: Foraminiferal shells are extensively used to reconstruct the marine environment in the geological past. The foraminifera test-bound organic material (FBOM), sheltered by the test from potential diagenetic alteration and contamination, h... Read More about Composition of planktonic foraminifera test-bound organic material and implications for carbon cycle reconstructions.
Biomarker proxies for reconstructing Quaternary climate and environmental change (2023)
Journal Article
McClymont, E. L., Mackay, H., Stevenson, M. A., Damm-Johnsen, T., Honan, E. M., Penny, C. E., & Cole, Y. A. (2023). Biomarker proxies for reconstructing Quaternary climate and environmental change. Journal of Quaternary Science, 38(7), 991-1024. https://doi.org/10.1002/jqs.3559To reconstruct past environmental changes, a range of indirect or proxy approaches can be applied to Quaternary archives. Here, we review the complementary and novel insights which have been provided by the analysis of chemical fossils (biomarkers).... Read More about Biomarker proxies for reconstructing Quaternary climate and environmental change.
Amplified surface warming in the south-west Pacific during the mid-Pliocene (3.3–3.0 Ma) and future implications (2023)
Journal Article
Grant, G. R., Williams, J. H. T., Naeher, S., Seki, O., McClymont, E. L., Patterson, M. O., …Johnson, K. (2023). Amplified surface warming in the south-west Pacific during the mid-Pliocene (3.3–3.0 Ma) and future implications. Climate of the Past, 19(7), 1359-1381. https://doi.org/10.5194/cp-19-1359-2023Based on Nationally Determined Contributions concurrent with Shared Socioeconomic Pathways (SSPs) 2-4.5, the IPCC predicts global warming of 2.1–3.5 ∘C (very likely range 10–90th percentile) by 2100 CE. However, global average temperature is a poor i... Read More about Amplified surface warming in the south-west Pacific during the mid-Pliocene (3.3–3.0 Ma) and future implications.
Climate Evolution Through the Onset and Intensification of Northern Hemisphere Glaciation (2023)
Journal Article
McClymont, E., Ho, S., Ford, H., Bailey, I., Berke, M., Bolton, C., …Tangunan, D. (2023). Climate Evolution Through the Onset and Intensification of Northern Hemisphere Glaciation. Reviews of Geophysics, 61(3), Article e2022RG000793. https://doi.org/10.1029/2022rg000793The Pliocene Epoch (~5.3-2.6 million years ago, Ma) was characterized by a warmer than present climate with smaller Northern Hemisphere ice sheets, and offers an example of a climate system in long-term equilibrium with current or predicted near-futu... Read More about Climate Evolution Through the Onset and Intensification of Northern Hemisphere Glaciation.
Buoyancy forcing: A key driver for northern North Atlantic SST variability across multiple time scales (2023)
Journal Article
Risebrobakken, B., Jensen, M. F., Langehaug, H. R., Eldevik, T., Britt Sandø, A., Li, C., …De Schepper, S. (2023). Buoyancy forcing: A key driver for northern North Atlantic SST variability across multiple time scales. Climate of the Past, 19(5), 1101–1123. https://doi.org/10.5194/cp-19-1101-2023Analyses of observational data (from year 1870 AD) show that sea surface temperature (SST) anomalies along the pathway of Atlantic Water transport in the North Atlantic, the Norwegian Sea and the Iceland Sea are spatially coherent at multidecadal tim... Read More about Buoyancy forcing: A key driver for northern North Atlantic SST variability across multiple time scales.
Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments (2023)
Journal Article
Smith, J. A., Callard, L., Bentley, M. J., Jamieson, S. S., Sánchez-Montes, M. L., Lane, T. P., …Roberts, D. H. (2023). Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments. The Cryosphere, 17(3), https://doi.org/10.5194/tc-17-1247-2023Nioghalvfjerdsbrae, or 79◦ N Glacier, is the largest marine-terminating glacier draining the Northeast Greenland Ice Stream (NEGIS). In recent years, its ∼ 70 km long fringing ice shelf (hereafter referred to as the 79◦ N ice shelf) has thinned, and... Read More about Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments.
Snow petrel stomach-oil deposits as a new biological archive of Antarctic sea ice (2022)
Journal Article
McClymont, E. L., Bentley, M. J., Hodgson, D. A., Spencer-Jones, C. L., Wardley, T., West, M. D., …Phillips, R. A. (2022). Snow petrel stomach-oil deposits as a new biological archive of Antarctic sea ice. PAGES Magazine, 30(2), 82-83. https://doi.org/10.22498/pages.30.2.82
The PhanSST global database of Phanerozoic sea surface temperature proxy data (2022)
Journal Article
Judd, E. J., Tierney, J. E., Huber, B. T., Wing, S. L., Lunt, D. J., Ford, H. L., …Zhang, Y. G. (2022). The PhanSST global database of Phanerozoic sea surface temperature proxy data. Scientific Data, 9(1), Article 753. https://doi.org/10.1038/s41597-022-01826-0Paleotemperature proxy data form the cornerstone of paleoclimate research and are integral to understanding the evolution of the Earth system across the Phanerozoic Eon. Here, we present PhanSST, a database containing over 150,000 data points from fi... Read More about The PhanSST global database of Phanerozoic sea surface temperature proxy data.
Planktonic foraminifera organic carbon isotopes as archives of upper ocean carbon cycling (2022)
Journal Article
Hoogakker, B., Anderson, C., Paoloni, T., Scott, A., Grant, H., Keenan, P., …Peck, V. (2022). Planktonic foraminifera organic carbon isotopes as archives of upper ocean carbon cycling. Nature Communications, 13, Article 4841. https://doi.org/10.1038/s41467-022-32480-0The carbon cycle is a key regulator of Earth’s climate. On geological time-scales, our understanding of particulate organic matter (POM), an important upper ocean carbon pool that fuels ecosystems and an integrated part of the carbon cycle, is limite... Read More about Planktonic foraminifera organic carbon isotopes as archives of upper ocean carbon cycling.
Plio-Pleistocene ocean circulation changes in the Gulf of Alaska and its impacts on the carbon and nitrogen cycles and the Cordilleran Ice Sheet development (2022)
Journal Article
Sánchez Montes, M., Romero, O., Cowan, E., Müller, J., Moy, C., Lloyd, J., & McClymont, E. (online). Plio-Pleistocene ocean circulation changes in the Gulf of Alaska and its impacts on the carbon and nitrogen cycles and the Cordilleran Ice Sheet development. Paleoceanography and Paleoclimatology,
Plio-Pleistocene ocean circulation changes in the GOA and its impacts on the carbon and nitrogen cycles and the CIS development (2022)
Journal Article
Sánchez Montes, M., Romero, O., Cowan, A., Müller, J., Moy, C., LLoyd, J., & McClymont, E. (2022). Plio-Pleistocene ocean circulation changes in the GOA and its impacts on the carbon and nitrogen cycles and the CIS development. Paleoceanography and Paleoclimatology, 37(7), Article e2021PA004341. https://doi.org/10.1029/2021pa004341The modern Gulf of Alaska (GOA) is a high nutrient low chlorophyll (HNLC) region, estimated to be important for nutrient cycling and CO2 exchange. Little is known of the GOA evolution over the Pliocene and Pleistocene as well as its impact on the Cor... Read More about Plio-Pleistocene ocean circulation changes in the GOA and its impacts on the carbon and nitrogen cycles and the CIS development.
A multiproxy approach to long-term herbivore grazing dynamics in peatlands based on pollen, coprophilous fungi and faecal biomarkers (2022)
Journal Article
Davies, A., Harrault, L., Milek, K., McClymont, E., Dallimer, M., Hamilton, A., & Warburton, J. (2022). A multiproxy approach to long-term herbivore grazing dynamics in peatlands based on pollen, coprophilous fungi and faecal biomarkers. Palaeogeography, Palaeoclimatology, Palaeoecology, 598, Article 111032. https://doi.org/10.1016/j.palaeo.2022.111032Herbivory plays a significant role in regulating many contemporary terrestrial plant ecosystems, but remains an imperfectly understood component of past ecosystem dynamics because the diagnostic capability of methods is still being tested and refined... Read More about A multiproxy approach to long-term herbivore grazing dynamics in peatlands based on pollen, coprophilous fungi and faecal biomarkers.
Summer sea-ice variability on the Antarctic margin during the last glacial period reconstructed from snow petrel (Pagodroma nivea) stomach-oil deposits (2022)
Journal Article
McClymont, E. L., Bentley, M. J., Hodgson, D. A., Spencer-Jones, C. L., Wardley, T., West, M. D., …Phillips, R. A. (2022). Summer sea-ice variability on the Antarctic margin during the last glacial period reconstructed from snow petrel (Pagodroma nivea) stomach-oil deposits. Climate of the Past, 18(2), 381-403. https://doi.org/10.5194/cp-18-381-2022Antarctic sea ice is a critical component of the climate system affecting a range of physical and biogeochemical feedbacks and supporting unique ecosystems. During the last glacial stage, Antarctic sea ice was more extensive than today, but uncertain... Read More about Summer sea-ice variability on the Antarctic margin during the last glacial period reconstructed from snow petrel (Pagodroma nivea) stomach-oil deposits.
Orbital and Suborbital‐Scale Variations of Productivity and Sea Surface Conditions in the Gulf of Alaska During the Past 54,000 Years: Impact of Iron Fertilization by Icebergs and Meltwater (2021)
Journal Article
Romero, O. E., LeVay, L. J., McClymont, E. L., Müller, J., & Cowan, E. A. (2022). Orbital and Suborbital‐Scale Variations of Productivity and Sea Surface Conditions in the Gulf of Alaska During the Past 54,000 Years: Impact of Iron Fertilization by Icebergs and Meltwater. Paleoceanography and Paleoclimatology, 37(1), Article e2021PA004385. https://doi.org/10.1029/2021pa004385As a high-nutrient and low-chlorophyll region, the modern Gulf of Alaska (GoA) is strongly impacted by the limitation of iron. Paleostudies along the Alaskan slope have mainly focused on reconstructing environmental conditions over the past 18 ka. Ba... Read More about Orbital and Suborbital‐Scale Variations of Productivity and Sea Surface Conditions in the Gulf of Alaska During the Past 54,000 Years: Impact of Iron Fertilization by Icebergs and Meltwater.
Archaeal Intact Polar Lipids in Polar Waters: A Comparison Between the Amundsen and Scotia Seas (2021)
Journal Article
Spencer-Jones, C. L., McClymont, E. L., Bale, N., Hopmans, E., Schouten, S., Muller, J., …Smith, J. (2021). Archaeal Intact Polar Lipids in Polar Waters: A Comparison Between the Amundsen and Scotia Seas. Biogeosciences, 18(11), 3485-3504. https://doi.org/10.5194/bg-18-3485-2021The West Antarctic Ice Sheet (WAIS) is one of the largest potential sources of future sea-level rise, with glaciers draining the WAIS thinning at an accelerating rate over the past 40 years. Due to complexities in calibrating palaeoceanographic proxi... Read More about Archaeal Intact Polar Lipids in Polar Waters: A Comparison Between the Amundsen and Scotia Seas.
Geological Society Scientific Statement: What the Geological Record Tells Us About Our Present and Future Climate (2020)
Journal Article
Lear, C., Anand, P., Blenkinsop, T., Foster, G., Gagen, M., Hoogakker, B., …Zalasiewicz, J. (2021). Geological Society Scientific Statement: What the Geological Record Tells Us About Our Present and Future Climate. Journal of the Geological Society, 178(1), https://doi.org/10.1144/jgs2020-239Geology is the science of how the Earth functions and has evolved and, as such, it can contribute to our understanding of the climate system and how it responds to the addition of carbon dioxide (CO2) to the atmosphere and oceans. Observations from t... Read More about Geological Society Scientific Statement: What the Geological Record Tells Us About Our Present and Future Climate.
Lessons from a high CO2 world: an ocean view from ~ 3 million years ago (2020)
Journal Article
McClymont, E., Ford, H., Ho, S., Tindall, J., Haywood, A., Alonso-Garcia, M., …Zhang, Z. (2020). Lessons from a high CO2 world: an ocean view from ~ 3 million years ago. Climate of the Past, 16(4), 1599-1615. https://doi.org/10.5194/cp-16-1599-2020A range of future climate scenarios are projected for high atmospheric CO2 concentrations, given uncertainties over future human actions as well as potential environmental and climatic feedbacks. The geological record offers an opportunity to underst... Read More about Lessons from a high CO2 world: an ocean view from ~ 3 million years ago.
Mg/Ca-Temperature Calibration of Polar Benthic foraminifera species for reconstruction of bottom water temperatures on the Antarctic shelf (2020)
Journal Article
Mawbey, E. M., Hendry, K. H., Greaves, M. J., Hillenbrand, C., Kuhn, G., Spencer-Jones, C. L., …Smith, J. A. (2020). Mg/Ca-Temperature Calibration of Polar Benthic foraminifera species for reconstruction of bottom water temperatures on the Antarctic shelf. Geochimica et Cosmochimica Acta, 283, 54-66. https://doi.org/10.1016/j.gca.2020.05.027Benthic foraminifera Mg/Ca is a well-established bottom water temperature (BWT) proxy used in paleoclimate studies. The relationship between Mg/Ca and BWT for numerous species has been determined using core-top and culturing studies. However, the sca... Read More about Mg/Ca-Temperature Calibration of Polar Benthic foraminifera species for reconstruction of bottom water temperatures on the Antarctic shelf.
Long-term patterns of hillslope erosion by earthquake-induced landslides shape mountain landscapes (2020)
Journal Article
Wang, J., Howarth, J. D., McClymont, E. L., Densmore, A. L., Fitzsimons, S. J., Croissant, T., …Hilton, R. G. (2020). Long-term patterns of hillslope erosion by earthquake-induced landslides shape mountain landscapes. Science Advances, 6(23), Article eaaz6446. https://doi.org/10.1126/sciadv.aaz6446Widespread triggering of landslides by large storms or earthquakes is a dominant mechanism of erosion in mountain landscapes. If landslides occur repeatedly in particular locations within a mountain range, then they will dominate the landscape evolut... Read More about Long-term patterns of hillslope erosion by earthquake-induced landslides shape mountain landscapes.
Late Pliocene Cordilleran Ice Sheet development with warm Northeast Pacific sea surface temperatures (2020)
Journal Article
Sánchez-Montes, M., McClymont, E., Lloyd, J., Müller, J., Cowan, E., Zorzi, C., & de Vernal, A. (2020). Late Pliocene Cordilleran Ice Sheet development with warm Northeast Pacific sea surface temperatures. Climate of the Past, 16(1), 299-313. https://doi.org/10.5194/cp-16-299-2020The initiation and evolution of the Cordilleran Ice Sheet are relatively poorly constrained. International Ocean Discovery Program (IODP) Expedition 341 recovered marine sediments at Site U1417 in the Gulf of Alaska (GOA). Here we present alkenone-de... Read More about Late Pliocene Cordilleran Ice Sheet development with warm Northeast Pacific sea surface temperatures.
The potential of biomarker proxies to trace climate, vegetation, and biogeochemical processes in peat: A review (2019)
Journal Article
Naafs, B., Inglis, G., Blewett, J., McClymont, E., Lauretano, V., Xie, S., …Pancost, R. (2019). The potential of biomarker proxies to trace climate, vegetation, and biogeochemical processes in peat: A review. Global and Planetary Change, 179, 57-79. https://doi.org/10.1016/j.gloplacha.2019.05.006Molecular fossils (biomarkers) are abundant in organic rich natural archives such as peats and lignites (fossilized peat), where their distribution is governed by their biological source, environmental factors, such as temperature and pH, and diagene... Read More about The potential of biomarker proxies to trace climate, vegetation, and biogeochemical processes in peat: A review.
Evaluation of Mumiyo Deposits from East Antarctica as Archives for the Late Quaternary Environmental and Climatic History (2018)
Journal Article
Berg, S., Melles, M., Hermichen, W., McClymont, E., Bentley, M., Hodgson, D., & Kuhn, G. (2019). Evaluation of Mumiyo Deposits from East Antarctica as Archives for the Late Quaternary Environmental and Climatic History. Geochemistry, Geophysics, Geosystems, 20(1), 260-276. https://doi.org/10.1029/2018gc008054Mumiyo deposits form in the vicinity of snow petrel (Pagodroma nivea) nesting sites and consist of fossil stomach oil (mumiyo), guano and minerogenic material. Here, we evaluate mumiyo deposits from the inland mountain ranges of central Dronning Maud... Read More about Evaluation of Mumiyo Deposits from East Antarctica as Archives for the Late Quaternary Environmental and Climatic History.
Carbon export from mountain forests enhanced by earthquake-triggered landslides over millennia (2018)
Journal Article
Frith, N., Hilton, R., Howarth, J., Gröcke, D., Fitzsimons, S., Croissant, T., …Densmore, A. (2018). Carbon export from mountain forests enhanced by earthquake-triggered landslides over millennia. Nature Geoscience, 11(10), 772-776. https://doi.org/10.1038/s41561-018-0216-3Rapid ground accelerations during earthquakes can trigger landslides that disturb mountain forests and harvest carbon from soils and vegetation. Although infrequent over human timescales, these co-seismic landslides can set the rates of geomorphic pr... Read More about Carbon export from mountain forests enhanced by earthquake-triggered landslides over millennia.
Lack of evidence for a substantial sea-level fluctuation within the Last Interglacial (2018)
Journal Article
Barlow, N., McClymont, E., Whitehouse, P., Stokes, C., Jamieson, S., Woodroffe, S., …Sanchez-Montes, M. (2018). Lack of evidence for a substantial sea-level fluctuation within the Last Interglacial. Nature Geoscience, 11, 627-634. https://doi.org/10.1038/s41561-018-0195-4During the Last Interglacial, global mean sea level reached approximately 6 to 9 m above the present level. This period of high sea level may have been punctuated by a fall of more than 4 m, but a cause for such a widespread sea-level fall has been e... Read More about Lack of evidence for a substantial sea-level fluctuation within the Last Interglacial.
A two-million-year-long hydroclimatic context for hominin evolution in southeastern Africa (2018)
Journal Article
Caley, T., Extier, T., Collins, J., Schefuß, E., Dupont, L., Malaizé, B., …Giraudeau, J. (2018). A two-million-year-long hydroclimatic context for hominin evolution in southeastern Africa. Nature, 560(7716), 76-79. https://doi.org/10.1038/s41586-018-0309-6The past two million years of eastern African climate variability is currently poorly constrained, despite interest in understanding its assumed role in early human evolution1,2,3,4. Rare palaeoclimate records from northeastern Africa suggest progres... Read More about A two-million-year-long hydroclimatic context for hominin evolution in southeastern Africa.
Palaeoclimate constraints on the impact of 2 °C anthropogenic warming and beyond (2018)
Journal Article
Fischer, H., Meissner, K., Mix, A., Abram, N., Austermann, J., Brovkin, V., …Zhou, L. (2018). Palaeoclimate constraints on the impact of 2 °C anthropogenic warming and beyond. Nature Geoscience, 11, 474-485. https://doi.org/10.1038/s41561-018-0146-0Over the past 3.5 million years, there have been several intervals when climate conditions were warmer than during the pre-industrial Holocene. Although past intervals of warming were forced differently than future anthropogenic change, such periods... Read More about Palaeoclimate constraints on the impact of 2 °C anthropogenic warming and beyond.
Oceanographic and climatic evolution of the southeastern subtropical Atlantic over the last 3.5 Ma (2018)
Journal Article
Petrick, B., McClymont, E., Littler, K., Rosell-Melé, A., Clarkson, M., Maslin, M., …Pancost, R. (2018). Oceanographic and climatic evolution of the southeastern subtropical Atlantic over the last 3.5 Ma. Earth and Planetary Science Letters, 492, 12-21. https://doi.org/10.1016/j.epsl.2018.03.054The southeast Atlantic Ocean is dominated by two major oceanic systems: the Benguela Upwelling System, one of the world's most productive coastal upwelling cells and the Agulhas Leakage, which is important for transferring warm salty water from the I... Read More about Oceanographic and climatic evolution of the southeastern subtropical Atlantic over the last 3.5 Ma.
Cordilleran ice-sheet growth fueled primary productivity in the Gulf of Alaska, northeast Pacific Ocean (2018)
Journal Article
Müller, J., Romero, O., Cowan, E. A., McClymont, E. L., Forwick, M., Asahi, H., …Stoner, J. (2018). Cordilleran ice-sheet growth fueled primary productivity in the Gulf of Alaska, northeast Pacific Ocean. Geology, 46(4), 307-310. https://doi.org/10.1130/g39904.1Fertilization of the ocean by eolian dust and icebergs is an effective mechanism to enhance primary productivity. In particular, high-nutrient, low-chlorophyll (HNLC) areas where phytoplankton growth is critically iron-limited, such as the subarctic... Read More about Cordilleran ice-sheet growth fueled primary productivity in the Gulf of Alaska, northeast Pacific Ocean.
Distributions of geohopanoids in peat: Implications for the use of hopanoid-based proxies in natural archives (2018)
Journal Article
Inglis, G. N., Naafs, B. D. A., Zheng, Y., McClymont, E. L., Evershed, R. P., & Pancost, R. D. (2018). Distributions of geohopanoids in peat: Implications for the use of hopanoid-based proxies in natural archives. Geochimica et Cosmochimica Acta, 224, 249-261. https://doi.org/10.1016/j.gca.2017.12.029Hopanoids are pentacyclic triterpenoids produced by a wide range of bacteria. Within modern settings, hopanoids mostly occur in the biological 17β,21β(H) configuration. However, in some modern peatlands, the C31 hopane is present as the 'thermally-ma... Read More about Distributions of geohopanoids in peat: Implications for the use of hopanoid-based proxies in natural archives.
Highly variable Pliocene sea surface conditions in the Norwegian Sea (2017)
Journal Article
Bachem, P. E., Risebrobakken, B., De Schepper, S., & McClymont, E. L. (2017). Highly variable Pliocene sea surface conditions in the Norwegian Sea. Climate of the Past, 13(9), 1153-1168. https://doi.org/10.5194/cp-13-1153-2017The Pliocene was a time of global warmth with small sporadic glaciations, which transitioned towards the larger-scale Pleistocene glacial–interglacial variability. Here, we present high-resolution records of sea surface temperature (SST) and ice-raft... Read More about Highly variable Pliocene sea surface conditions in the Norwegian Sea.
Are spherulitic lacustrine carbonates an expression of large-scale mineral carbonation? A case study from the East Kirkton Limestone, Scotland (2017)
Journal Article
Rogerson, M., Mercedes-Martin, R., Brasier, A., McGill, R., Prior, T., Vonhof, H., …Pedley, M. (2017). Are spherulitic lacustrine carbonates an expression of large-scale mineral carbonation? A case study from the East Kirkton Limestone, Scotland. Gondwana Research, 48, 101-109. https://doi.org/10.1016/j.gr.2017.04.007Lacustrine carbonate deposits with spherulitic facies are poorly understood, but are key to understanding the economically important “Pre-Salt” Mesozoic strata of the South Atlantic. A major barrier to research into these unique and spectacular facie... Read More about Are spherulitic lacustrine carbonates an expression of large-scale mineral carbonation? A case study from the East Kirkton Limestone, Scotland.
Introducing global peat-specific temperature and pH calibrations based on brGDGT bacterial lipids (2017)
Journal Article
Naafs, B., Inglis, G., Zheng, Y., Amesbury, M., Biester, H., Bindler, R., …Pancost, R. (2017). Introducing global peat-specific temperature and pH calibrations based on brGDGT bacterial lipids. Geochimica et Cosmochimica Acta, 208, 285-301. https://doi.org/10.1016/j.gca.2017.01.038Glycerol dialkyl glycerol tetraethers (GDGTs) are membrane-spanning lipids from Bacteria and Archaea that are ubiquitous in a range of natural archives and especially abundant in peat. Previous work demonstrated that the distribution of bacterial bra... Read More about Introducing global peat-specific temperature and pH calibrations based on brGDGT bacterial lipids.
Low-frequency Pliocene climate variability in the eastern Nordic Seas (2016)
Journal Article
Risebrobakken, B., Andersson, C., De Schepper, S., & McClymont, E. (2016). Low-frequency Pliocene climate variability in the eastern Nordic Seas. Paleoceanography, 31(9), 1154-1175. https://doi.org/10.1002/2015pa002918The Pliocene (5.3–2.6 Ma) is often described as a relatively stable climatic period, with warm temperatures characterizing high latitudes. New suborbital resolved stable isotope records from ODP Hole 642B in the Eastern Nordic Seas document that the... Read More about Low-frequency Pliocene climate variability in the eastern Nordic Seas.
Pliocene-Pleistocene evolution of sea surface and intermediate water temperatures from the southwest Pacific (2016)
Journal Article
McClymont, E., Elmore, A., Kender, S., Leng, M., Greaves, M., & Elderfield, H. (2016). Pliocene-Pleistocene evolution of sea surface and intermediate water temperatures from the southwest Pacific. Paleoceanography, 31(6), 895-913. https://doi.org/10.1002/2016pa002954Over the last 5 million years, the global climate system has evolved toward a colder mean state, marked by large-amplitude oscillations in continental ice volume. Equatorward expansion of polar waters and strengthening temperature gradients have been... Read More about Pliocene-Pleistocene evolution of sea surface and intermediate water temperatures from the southwest Pacific.
Mid Pleistocene foraminiferal mass extinction coupled with phytoplankton evolution (2016)
Journal Article
Kender, S., McClymont, E., Elmore, A., Emanuel, D., Leng, M., & Elderfield, H. (2016). Mid Pleistocene foraminiferal mass extinction coupled with phytoplankton evolution. Nature Communications, 7, Article 11970. https://doi.org/10.1038/ncomms11970Understanding the interaction between climate and biotic evolution is crucial for deciphering the sensitivity of life. An enigmatic global mass extinction occurred in the deep oceans during the Mid Pleistocene, with a loss of over 100 species (20%) o... Read More about Mid Pleistocene foraminiferal mass extinction coupled with phytoplankton evolution.
Variation in the diet of killer whales Orcinus orca at Marion Island, Southern Ocean (2016)
Journal Article
Reisinger, R., Gröcke, D., Lübcker, E., McClymont, E., Hoelzel, A., & Nico de Bruyn, P. (2016). Variation in the diet of killer whales Orcinus orca at Marion Island, Southern Ocean. Marine Ecology Progress Series, 549, 263-274. https://doi.org/10.3354/meps11676Diet seems to be a key factor driving diversity and isolation among killer whale populations. Killer whales at Marion Island, Southern Ocean, have been observed preying on seals and penguins but are also know to depredate Patagonian toothfish from lo... Read More about Variation in the diet of killer whales Orcinus orca at Marion Island, Southern Ocean.
Sea surface temperature variability in the Norwegian Sea during the late Pliocene linked to subpolar gyre strength and radiative forcing (2016)
Journal Article
Bachem, P., Risebrobakken, B., & McClymont, E. (2016). Sea surface temperature variability in the Norwegian Sea during the late Pliocene linked to subpolar gyre strength and radiative forcing. Earth and Planetary Science Letters, 446, 113-122. https://doi.org/10.1016/j.epsl.2016.04.024The mid-Piacenzian warm period (3.264–3.025 Ma) of the Pliocene epoch has been proposed as a possible reference for future warm climate states. However, there is significant disagreement over the magnitude of high latitude warming between data and mo... Read More about Sea surface temperature variability in the Norwegian Sea during the late Pliocene linked to subpolar gyre strength and radiative forcing.
Origin and preservation of bacteriohopanepolyol signatures in Sphagnum peat from Bissendorfer Moor (Germany) (2016)
Journal Article
Talbot, H., McClymont, E., Inglis, G., Evershed, R., & Pancost, R. (2016). Origin and preservation of bacteriohopanepolyol signatures in Sphagnum peat from Bissendorfer Moor (Germany). Organic Geochemistry, 97, 95-110. https://doi.org/10.1016/j.orggeochem.2016.04.011Distributions of bacteriohopanepolyols (BHPs) were investigated in a peat core from the Bissendorfer Moor (Germany) in order to test the utility of BHPs as indicators of microbial processes in peats. Between 13 and 22 BHPs were identified in each sam... Read More about Origin and preservation of bacteriohopanepolyol signatures in Sphagnum peat from Bissendorfer Moor (Germany).
The δ18O stratigraphy of the Hoxnian lacustrine sequence at Marks Tey, Essex, UK: implications for the climatic structure of MIS 11 in Britain (2016)
Journal Article
Tye, G., Sherriff, J., Candy, I., Coxon, P., Palmer, A., McClymont, E., & Schreve, D. (2016). The δ18O stratigraphy of the Hoxnian lacustrine sequence at Marks Tey, Essex, UK: implications for the climatic structure of MIS 11 in Britain. Journal of Quaternary Science, 31(2), 75-92. https://doi.org/10.1002/jqs.2840Marine Isotope Stage 11 (MIS 11) is considered one of the best analogues for the Holocene. In the UK the long lacustrine sequence at Marks Tey, Essex, spans the entirety of the Hoxnian interglacial, the British correlative of MIS 11c. We present mult... Read More about The δ18O stratigraphy of the Hoxnian lacustrine sequence at Marks Tey, Essex, UK: implications for the climatic structure of MIS 11 in Britain.
Mid-Pleistocene climate transition drives net mass loss from rapidly uplifting St. Elias Mountains, Alaska (2015)
Journal Article
Gulick, S., Jaeger, J., Mix, A., Asahi, H., Bahlburg, H., Belanger, C., …Swartz, J. (2015). Mid-Pleistocene climate transition drives net mass loss from rapidly uplifting St. Elias Mountains, Alaska. Proceedings of the National Academy of Sciences, 112(49), 15042-15047. https://doi.org/10.1073/pnas.1512549112Erosion, sediment production, and routing on a tectonically active continental margin reflect both tectonic and climatic processes; partitioning the relative importance of these processes remains controversial. Gulf of Alaska contains a preserved sed... Read More about Mid-Pleistocene climate transition drives net mass loss from rapidly uplifting St. Elias Mountains, Alaska.
Antarctic Intermediate Water properties since 400 ka recorded in infaunal (Uvigerina peregrina) and epifaunal (Planulina wuellerstorfi) benthic foraminifera (2015)
Journal Article
Elmore, A., McClymont, E., Elderfield, H., Kender, S., Cook, M., Leng, M., …Misra, S. (2015). Antarctic Intermediate Water properties since 400 ka recorded in infaunal (Uvigerina peregrina) and epifaunal (Planulina wuellerstorfi) benthic foraminifera. Earth and Planetary Science Letters, 428, 193-203. https://doi.org/10.1016/j.epsl.2015.07.013Reconstruction of intermediate water properties is important for understanding feedbacks within the ocean-climate system, particularly since these water masses are capable of driving high–low latitude teleconnections. Nevertheless, information about... Read More about Antarctic Intermediate Water properties since 400 ka recorded in infaunal (Uvigerina peregrina) and epifaunal (Planulina wuellerstorfi) benthic foraminifera.
Changing surface water conditions for the last 500 ka in the Southeast Atlantic: Implications for variable influences of Agulhas leakage and Benguela upwelling (2015)
Journal Article
Petrick, B., McClymont, E., Marret, F., & van der Meer, M. (2015). Changing surface water conditions for the last 500 ka in the Southeast Atlantic: Implications for variable influences of Agulhas leakage and Benguela upwelling. Paleoceanography, 30(9), 1153-1167. https://doi.org/10.1002/2015pa002787The Southeast Atlantic Ocean is an important component of global ocean circulation, as it includes heat and salt transfer into the Atlantic through the Agulhas leakage as well as the highly productive Benguela upwelling system. Here we reconstruct se... Read More about Changing surface water conditions for the last 500 ka in the Southeast Atlantic: Implications for variable influences of Agulhas leakage and Benguela upwelling.
Late Pliocene upwelling in the Southern Benguela region (2015)
Journal Article
Petrick, B., McClymont, E., Felder, S., Rueda, G., Leng, M., & Rosell-Melé, A. (2015). Late Pliocene upwelling in the Southern Benguela region. Palaeogeography, Palaeoclimatology, Palaeoecology, 429, 62-71. https://doi.org/10.1016/j.palaeo.2015.03.042The Late Pliocene has been proposed as a possible analogue for understanding future climate change and for testing climate models. Previous work has shown that during the Pliocene the major upwelling systems were relatively warm, and that this meant... Read More about Late Pliocene upwelling in the Southern Benguela region.
Oceanographic variability on the West Antarctic Peninsula during the Holocene and the influence of upper circumpolar deep water (2015)
Journal Article
Peck, V., Allen, C., Kender, S., McClymont, E., & Hodgson, D. (2015). Oceanographic variability on the West Antarctic Peninsula during the Holocene and the influence of upper circumpolar deep water. Quaternary Science Reviews, 119, 54-65. https://doi.org/10.1016/j.quascirev.2015.04.002Recent intensification of wind-driven upwelling of warm upper circumpolar deep water (UCDW) has been linked to accelerated melting of West Antarctic ice shelves and glaciers. To better assess the long term relationship between UCDW upwelling and the... Read More about Oceanographic variability on the West Antarctic Peninsula during the Holocene and the influence of upper circumpolar deep water.
A combined biogeochemical and paleobotanical approach to study permafrost environments and past dynamics (2015)
Journal Article
Ronkainen, T., Väliranta, M., McClymont, E., Biasi, C., Salonen, S., Fontana, S., & Tuittila, E. (2015). A combined biogeochemical and paleobotanical approach to study permafrost environments and past dynamics. Journal of Quaternary Science, 30(3), 189-200. https://doi.org/10.1002/jqs.2763When investigating past peatland processes and related carbon cycle dynamics, it is essential to identify and separate different peat environments: bogs, fens and permafrost, and their historical plant assemblages. Bog peat layers contain relatively... Read More about A combined biogeochemical and paleobotanical approach to study permafrost environments and past dynamics.
Preferential degradation of polyphenols from Sphagnum - 4-isopropenylphenol as a proxy for past hydrological conditions in Sphagnum-dominated peat (2015)
Journal Article
Schellekens, J., Bindler, R., Martínez-Cortizas, A., McClymont, E., Abbott, G., Biester, H., …Buurman, P. (2015). Preferential degradation of polyphenols from Sphagnum - 4-isopropenylphenol as a proxy for past hydrological conditions in Sphagnum-dominated peat. Geochimica et Cosmochimica Acta, 150, 74-89. https://doi.org/10.1016/j.gca.2014.12.003The net accumulation of remains of Sphagnum spp. is fundamental to the development of many peatlands. The effect of polyphenols from Sphagnum on decomposition processes is frequently cited but has barely been studied. The central area of the Rödmossa... Read More about Preferential degradation of polyphenols from Sphagnum - 4-isopropenylphenol as a proxy for past hydrological conditions in Sphagnum-dominated peat.
Deglacial changes in flow and frontal structure through the Drake Passage (2014)
Journal Article
Roberts, J., McCace, I., McClymont, E., Kender, S., Hillenbrand, C., Matano, R., …Peck, V. (2014). Deglacial changes in flow and frontal structure through the Drake Passage. Earth and Planetary Science Letters, 474, 397-408. https://doi.org/10.1016/j.epsl.2017.07.004The oceanic gateways of the Drake Passage and the Agulhas Current are critical locations for the inflow of intermediate-depth water masses to the Atlantic, which contribute to the shallow return flow that balances the export of deep water from the No... Read More about Deglacial changes in flow and frontal structure through the Drake Passage.
Plant macrofossil and biomarker evidence of fen-bog transition and associated changes in vegetation (2014)
Journal Article
Ronkainen, T., McClymont, E., Tuitilla, E., & Väliranta, M. (2014). Plant macrofossil and biomarker evidence of fen-bog transition and associated changes in vegetation. Holocene, 24(7), 828-841. https://doi.org/10.1177/0959683614530442Past vegetation assemblages, preserved in peat layers, are one of the key proxies when reconstructing historical peatland dynamics. Northern peatlands can be divided into two main types: fens and bogs. Compared with bog peat, the fen peat is usually... Read More about Plant macrofossil and biomarker evidence of fen-bog transition and associated changes in vegetation.
Persistent warmth across the Benguela upwelling system during the Pliocene epoch (2014)
Journal Article
Rosell-Melé, A., Martínez-Garcia, A., & McClymont, E. (2014). Persistent warmth across the Benguela upwelling system during the Pliocene epoch. Earth and Planetary Science Letters, 386, 10-20. https://doi.org/10.1016/j.epsl.2013.10.041A feature of Pliocene climate is the occurrence of “permanent El Niño-like” or “El Padre” conditions in the Pacific Ocean. From the analysis of sediment cores in the modern northern Benguela upwelling, we show that the mean oceanographic state off So... Read More about Persistent warmth across the Benguela upwelling system during the Pliocene epoch.
Palaeoclimate reconstructions reveal a strong link between El Niño-Southern Oscillation and Tropical Pacific mean state (2013)
Journal Article
Sadekov, A., Ganeshram, R., Pichevin, L., Berdin, R., McClymont, E., Elderfield, H., & Tudhope, A. (2013). Palaeoclimate reconstructions reveal a strong link between El Niño-Southern Oscillation and Tropical Pacific mean state. Nature Communications, 4(11), Article 2692. https://doi.org/10.1038/ncomms3692The El Niño-Southern Oscillation (ENSO) is one of the most important components of the global climate system, but its potential response to an anthropogenic increase in atmospheric CO2 remains largely unknown. One of the major limitations in ENSO pre... Read More about Palaeoclimate reconstructions reveal a strong link between El Niño-Southern Oscillation and Tropical Pacific mean state.
On the identification of a Pliocene time slice for data-model comparison (2013)
Journal Article
Haywood, A., Dolan, A., Pickering, S., Dowsett, H., McClymont, E., Prescott, C., …Valdes, P. (2013). On the identification of a Pliocene time slice for data-model comparison. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 371(2001), Article 20120515. https://doi.org/10.1098/rsta.2012.0515The characteristics of the mid-Pliocene warm period (mPWP: 3.264–3.025 MaBP) have been examined using geological proxies and climate models. While there is agreement between models and data, details of regional climate differ. Uncertainties in prescr... Read More about On the identification of a Pliocene time slice for data-model comparison.
The n-alkane and sterol composition of living fen plants as a potential tool for palaeoecological studies (2013)
Journal Article
Ronkainen, T., McClymont, E., Väliranta, M., & Tuittila, E. (2013). The n-alkane and sterol composition of living fen plants as a potential tool for palaeoecological studies. Organic Geochemistry, 59, 1-9. https://doi.org/10.1016/j.orggeochem.2013.03.005In groundwater-fed fen peatlands, the surface biomass decays rapidly and, as a result, highly humified peat is formed. A high degree of humification constrains palaeoecological studies because reliable identification of plant remains is hampered. Org... Read More about The n-alkane and sterol composition of living fen plants as a potential tool for palaeoecological studies.
Interglacial intensity in the North Atlantic over the last 800,000 years: investigating the complexity of the mid-Brunhes Event (MBE) (2013)
Journal Article
Candy, I., & McClymont, E. (2013). Interglacial intensity in the North Atlantic over the last 800,000 years: investigating the complexity of the mid-Brunhes Event (MBE). Journal of Quaternary Science, 28(4), 343-348. https://doi.org/10.1002/jqs.2632The mid-Brunhes Event (MBE) represents a step-like increase, between Marine Isotope Stages (MIS) 13/11, in the intensity of interglacial warmth. A transect of palaeoclimatic records in the North Atlantic from 40°N to the Nordic Seas indicates strong... Read More about Interglacial intensity in the North Atlantic over the last 800,000 years: investigating the complexity of the mid-Brunhes Event (MBE).
Pleistocene sea-surface temperature evolution: Early cooling, delayed glacial intensification, and implications for the mid-Pleistocene climate transition (2013)
Journal Article
McClymont, E., Sosdian, S., Rosell-Melé, A., & Rosenthal, Y. (2013). Pleistocene sea-surface temperature evolution: Early cooling, delayed glacial intensification, and implications for the mid-Pleistocene climate transition. Earth-Science Reviews, 123, 173-193. https://doi.org/10.1016/j.earscirev.2013.04.006The mid-Pleistocene climate transition (MPT) is defined by the emergence of high amplitude, quasi-100 ka glacial-interglacial cycles from a prior regime of more subtle 41 ka cycles. This change in periodicity and amplitude cannot be explained by a ch... Read More about Pleistocene sea-surface temperature evolution: Early cooling, delayed glacial intensification, and implications for the mid-Pleistocene climate transition.
Co-variation of crenarchaeol and branched GDGTs in globally-distributed marine and freshwater sedimentary archives (2012)
Journal Article
Fietz, S., Huguet, C., Bendle, J., Escala, M., Gallacher, C., Herfort, L., …Rosell-Melé, A. (2012). Co-variation of crenarchaeol and branched GDGTs in globally-distributed marine and freshwater sedimentary archives. Global and Planetary Change, 92-93, 275-285. https://doi.org/10.1016/j.gloplacha.2012.05.020Two major types of glycerol dialkyl glycerol tetraethers (GDGTs) are commonly used in paleoecological and paleoclimatological reconstructions: isoprenoidal and branched GDGTs. In aquatic environments, it was originally assumed that isoprenoidal GDGTs... Read More about Co-variation of crenarchaeol and branched GDGTs in globally-distributed marine and freshwater sedimentary archives.
Silicic acid biogeochemistry in the Gulf of California: Insights from sedimentary Si isotopes (2012)
Journal Article
Pichevin, L., Ganeshram, R., Reynolds, B., Prahl, F., Pedersen, T., Thunell, R., & McClymont, E. (2012). Silicic acid biogeochemistry in the Gulf of California: Insights from sedimentary Si isotopes. Paleoceanography, 27(2), Article PA2201. https://doi.org/10.1029/2011pa002237Iron is considered to play a large role in the cycling of Si in Fe limited regions of the ocean but little is known about its role in Si biogeochemistry outside these areas. Here, we present published sediment trap data, new nutrient profiles and hig... Read More about Silicic acid biogeochemistry in the Gulf of California: Insights from sedimentary Si isotopes.
Sea-surface temperature records of Termination 1 in the Gulf of California: challenges for seasonal and inter-annual analogues of tropical Pacific climate change (2012)
Journal Article
McClymont, E., Ganeshram, R., Pichevin, L., Talbot, H., van Dongen, B., Thunell, R., …Valdes, P. (2012). Sea-surface temperature records of Termination 1 in the Gulf of California: challenges for seasonal and inter-annual analogues of tropical Pacific climate change. Paleoceanography, 27, Article PA2202. https://doi.org/10.1029/2011pa002226Centennial-scale records of sea-surface temperature and opal composition spanning the Last Glacial Maximum and Termination 1 (c. 25 – 6 ka) are presented here from Guaymas Basin in the Gulf of California. Through the application of two organic geoche... Read More about Sea-surface temperature records of Termination 1 in the Gulf of California: challenges for seasonal and inter-annual analogues of tropical Pacific climate change.
Pyrolysis GC/MS as a rapid screening tool for determination of peat-forming plant composition in cores from ombrotrophic peat (2011)
Journal Article
McClymont, E., Bingham, E., Nott, C., Chambers, F., Pancost, R., & Evershed, R. (2011). Pyrolysis GC/MS as a rapid screening tool for determination of peat-forming plant composition in cores from ombrotrophic peat. Organic Geochemistry, 42(11), 1420-1435. https://doi.org/10.1016/j.orggeochem.2011.07.004Peat cores provide decadal to centennial records of climatic and environmental change, including evidence for human/environment interaction. Existing palaeoenvironmental proxies (macrofossils, pollen, humification, testate amoebae, lipid composition)... Read More about Pyrolysis GC/MS as a rapid screening tool for determination of peat-forming plant composition in cores from ombrotrophic peat.
Archaeol as a methanogen biomarker in ombrotrophic bogs (2011)
Journal Article
Pancost, R., McClymont, E., Bingham, E., Roberts, Z., Charman, D., Hornibrook, E., …Evershed, R. (2011). Archaeol as a methanogen biomarker in ombrotrophic bogs. Organic Geochemistry, 42(10), 1279-1287. https://doi.org/10.1016/j.orggeochem.2011.07.003In order to develop new tools in the reconstruction of microbiological processes in ancient continental settings, we determined the concentration of archaeol and sn-2-hydroxyarchaeol in four Holocene ombrotrophic peatlands, spanning a range of Europe... Read More about Archaeol as a methanogen biomarker in ombrotrophic bogs.
Alkenones and coccoliths in ice-rafted debris during the Last Glacial Maximum in the North Atlantic: implications for the use of UK37' as a sea surface temperature proxy (2011)
Journal Article
Rosell-Melé, A., Balestra, B., Kornilova, O., McClymont, E., Russell, M., Monechi, S., …Ziveri, P. (2011). Alkenones and coccoliths in ice-rafted debris during the Last Glacial Maximum in the North Atlantic: implications for the use of UK37' as a sea surface temperature proxy. Journal of Quaternary Science, 26(6), 657-664. https://doi.org/10.1002/jqs.1488The UK37′ index has proven to be a robust proxy to estimate past sea surface temperatures (SSTs) over a range of time scales, but like any other proxy, it has uncertainties. For instance, in reconstructions of the Last Glacial Maximum (LGM) in the no... Read More about Alkenones and coccoliths in ice-rafted debris during the Last Glacial Maximum in the North Atlantic: implications for the use of UK37' as a sea surface temperature proxy.
Atlantic overturning circulation and Agulhas leakage influences on southEast Atlantic upper ocean hydrography during marine isotope stage 11 (2010)
Journal Article
Dickson, A., Leng, M., Maslin, M., Sloane, H., Green, J., Bendle, J., …Pancost, R. (2010). Atlantic overturning circulation and Agulhas leakage influences on southEast Atlantic upper ocean hydrography during marine isotope stage 11. Paleoceanography, 25, Article PA3208. https://doi.org/10.1029/2009pa001830Climate dynamics during the marine isotope stage (MIS) 11 interglacial may provide information about how the climate system will evolve under the conditions of low-amplitude orbital forcing that are also found during the late Holocene. New stable iso... Read More about Atlantic overturning circulation and Agulhas leakage influences on southEast Atlantic upper ocean hydrography during marine isotope stage 11.
Subpolar Link to the Emergence of the Modern Equatorial Pacific Cold Tongue (2010)
Journal Article
Martínez-Garcia, A., Rosell-Melé, A., McClymont, E., Gersonde, R., & Haug, G. (2010). Subpolar Link to the Emergence of the Modern Equatorial Pacific Cold Tongue. Science, 328(5985), 1550-1553. https://doi.org/10.1126/science.1184480The cold upwelling “tongue” of the eastern equatorial Pacific is a central energetic feature of the ocean, dominating both the mean state and temporal variability of climate in the tropics and beyond. Recent evidence for the development of the modern... Read More about Subpolar Link to the Emergence of the Modern Equatorial Pacific Cold Tongue.
Stable isotopes and organic geochemistry in peat: Tools to investigate past hydrology, temperature and biogeochemistry (2010)
Journal Article
McClymont, E., Pendall, E., & Nichols, J. (2010). Stable isotopes and organic geochemistry in peat: Tools to investigate past hydrology, temperature and biogeochemistry. PAGES news, 18(1), 15-18
Conservative composition of n-alkane biomarkers in Sphagnum species: Implications for palaeoclimate reconstruction in ombrotrophic peat bogs (2010)
Journal Article
Bingham, E., McClymont, E., Väliranta, M., Mauquoy, D., Roberts, Z., Chambers, F., …Evershed, R. (2010). Conservative composition of n-alkane biomarkers in Sphagnum species: Implications for palaeoclimate reconstruction in ombrotrophic peat bogs. Organic Geochemistry, 41(2), 214-220. https://doi.org/10.1016/j.orggeochem.2009.06.010The n-alkane distributions from total lipid extracts of ten modern Sphagnum moss species, collected from a suite of ombrotrophic bogs across Europe, were determined using gas chromatography/mass spectrometry (GC/MS). n-Alkane distributions are report... Read More about Conservative composition of n-alkane biomarkers in Sphagnum species: Implications for palaeoclimate reconstruction in ombrotrophic peat bogs.
The disappearance of Sphagnum imbricatum from Butterburn Flow: A reply to the comment of Bjorn Roebroek. (2009)
Journal Article
McClymont, E., Mauquoy, D., Yeloff, D., Broekens, P., van Geel, B., Charman, D., …Evershed, R. (2009). The disappearance of Sphagnum imbricatum from Butterburn Flow: A reply to the comment of Bjorn Roebroek. Holocene, 19(7), 1094-1097. https://doi.org/10.1177/0959683609345086
Oceanic Forcing of the Marine Isotope Stage 11 interglacial (2009)
Journal Article
Dickson, A., Beer, C., Demsey, C., Maslin, M., Bendle, J., McClymont, E., & Pancost, R. (2009). Oceanic Forcing of the Marine Isotope Stage 11 interglacial. Nature Geoscience, 2(6), 428-433. https://doi.org/10.1038/ngeo527The interglacial known as Marine Isotope Stage 11 has been proposed to be analogous to the Holocene, owing to similarities in the amplitudes of orbital forcing. It has been difficult to compare the periods, however, because of the long duration of St... Read More about Oceanic Forcing of the Marine Isotope Stage 11 interglacial.
Expansion of subarctic water masses in the North Atlantic and Pacific oceans and implications for mid-Pleistocene ice sheet growth (2008)
Journal Article
McClymont, E., Rosell-Mele, A., Haug, G., & Lloyd, J. (2008). Expansion of subarctic water masses in the North Atlantic and Pacific oceans and implications for mid-Pleistocene ice sheet growth. Paleoceanography, 23, Article PA4214. https://doi.org/10.1029/2008pa001622Past surface ocean circulation changes associated with the mid-Pleistocene transition, 0.9–0.6 Ma, were reconstructed in the northern North Atlantic (ODP 983) and the northwest Pacific (ODP 882), using proxies for subarctic/subpolar water mass distri... Read More about Expansion of subarctic water masses in the North Atlantic and Pacific oceans and implications for mid-Pleistocene ice sheet growth.
The disappearance of Sphagnum imbricatum from Butterburn Flow, UK (2008)
Journal Article
McClymont, E., Mauquoy, D., Yeloff, D., Broekens, P., van Geel, B., Charman, D., …Evershed, R. (2008). The disappearance of Sphagnum imbricatum from Butterburn Flow, UK. Holocene, 18(6), 991-1002. https://doi.org/10.1177/0959683608093537The disappearance of the previously abundant moss species Sphagnum imbricatum has been investigated at Butterburn Flow, northern England, using organic geochemical, elemental, macrofossil, pollen and testate amoebae analyses. Variations in the assemb... Read More about The disappearance of Sphagnum imbricatum from Butterburn Flow, UK.
Benefits of freeze-drying sediments for the analysis of total chlorins and alkenone concentrations in marine sediments (2007)
Journal Article
McClymont, E., Martinez-Garcia, A., & Rosell-Melé, A. (2007). Benefits of freeze-drying sediments for the analysis of total chlorins and alkenone concentrations in marine sediments. Organic Geochemistry, 38(6), 1002-1007. https://doi.org/10.1016/j.orggeochem.2007.01.006Long chain alkenones and photosynthetic pigment derivatives (chlorins) are commonly employed biomarkers in the reconstruction of past sea surface temperatures (SSTs) and organic carbon export from the surface to the deep ocean. For these studies, mar... Read More about Benefits of freeze-drying sediments for the analysis of total chlorins and alkenone concentrations in marine sediments.
A pan-European testate amoebae transfer function for palaeohydrological reconstruction on ombrotrophic peatlands. (2006)
Journal Article
Charman, D., Blundell, A., & ACCROTELM Members - including McClymont, E. (2006). A pan-European testate amoebae transfer function for palaeohydrological reconstruction on ombrotrophic peatlands. Journal of Quaternary Science, 22, 209-221Proxy climate data can be obtained from reconstructions of hydrological changes on ombrotrophic (rain-fed) peatlands using biological indicators, such as testate amoebae. Reconstructions are based on transfer functions, relating modern assemblage com... Read More about A pan-European testate amoebae transfer function for palaeohydrological reconstruction on ombrotrophic peatlands..
Alkenone and coccolith records of the Mid-Pleistocene in the south-east Atlantic: Implications for the UK37' index and south African climate (2005)
Journal Article
McClymont, E., Rosell-Melé, A., Giraudeau, J., Pierre, C., & Lloyd, J. (2005). Alkenone and coccolith records of the Mid-Pleistocene in the south-east Atlantic: Implications for the UK37' index and south African climate. Quaternary Science Reviews, 24(14-15), 1559-1572. https://doi.org/10.1016/j.quascirev.2004.06.024Successful application of the alkenone palaeothermometer, the View the MathML source index, relies upon the assumption that fossil alkenone synthesisers responded to growth-temperature changes in a similar manner to the modern producers, chiefly the... Read More about Alkenone and coccolith records of the Mid-Pleistocene in the south-east Atlantic: Implications for the UK37' index and south African climate.
Links between the onset of modern Walker circulation and the mid-Pleistocene climate transition (2005)
Journal Article
McClymont, E., & Rosell-Melé, A. (2005). Links between the onset of modern Walker circulation and the mid-Pleistocene climate transition. Geology, 33(5), 389-392. https://doi.org/10.1130/g21292.1Sea-surface temperatures (SSTs) reconstructed from Ocean Drilling Program Sites 806 and 849 in the western and eastern equatorial Pacific provide a history of the strength of the Walker circulation between 1.5 and 0.5 Ma. A progressive cooling in the... Read More about Links between the onset of modern Walker circulation and the mid-Pleistocene climate transition.