Outputs (48)

South Georgia marine productivity over the past 15 ka and implications for glacial evolution (2024)
Journal Article
Wilkin, J. T., Kender, S., Dejardin, R., Allen, C. S., Peck, V. L., Swann, G. E., …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-43-165-2024

The 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.

A global compilation of diatom silica oxygen isotope records from lake sediment – trends and implications for climate reconstruction (2024)
Journal Article
Meister, P., Alexandre, A., Bailey, H., Barker, P., Biskaborn, B. K., Broadman, E., …Meyer, H. (2024). A global compilation of diatom silica oxygen isotope records from lake sediment – trends and implications for climate reconstruction. Climate of the Past, 20(2), 363-392. https://doi.org/10.5194/cp-20-363-2024

Oxygen isotopes in biogenic silica (δ18OBSi) from lake sediments allow for quantitative reconstruction of past hydroclimate and proxy-model comparison in terrestrial environments. The signals of individual records have been attributed to different fa... Read More about A global compilation of diatom silica oxygen isotope records from lake sediment – trends and implications for climate reconstruction.

Identifying the controls on nitrate and metabolic state within the Red River delta (Vietnam) with the use of stable isotopes (2023)
Journal Article
Smith, A. C., Leng, M. J., McGowan, S., Panizzo, V. N., Ngo, T. T. T., Luu, T. N. M., …Trinh, A. D. (2024). Identifying the controls on nitrate and metabolic state within the Red River delta (Vietnam) with the use of stable isotopes. Journal of Hydrology, 628, Article 130467. https://doi.org/10.1016/j.jhydrol.2023.130467

In many places around the world, anthropogenic activities have resulted in nitrate (NO3−) pollution and changes in the metabolic state of aquatic ecosystems. Here we combined stable isotope and physico-chemical monitoring to assess the sources of NO3... Read More about Identifying the controls on nitrate and metabolic state within the Red River delta (Vietnam) with the use of stable isotopes.

Indian Ocean glacial deoxygenation and respired carbon accumulation during mid-late Quaternary ice ages (2023)
Journal Article
Chang, L., Hoogakker, B. A. A., Heslop, D., Zhao, X., Roberts, A. P., De Deckker, P., …Harrison, R. J. (2023). Indian Ocean glacial deoxygenation and respired carbon accumulation during mid-late Quaternary ice ages. Nature Communications, 14, Article 4841. https://doi.org/10.1038/s41467-023-40452-1

Reconstructions of ocean oxygenation are critical for understanding the role of respired carbon storage in regulating atmospheric CO2. Independent sediment redox proxies are essential to assess such reconstructions. Here, we present a long magnetofos... Read More about Indian Ocean glacial deoxygenation and respired carbon accumulation during mid-late Quaternary ice ages.

Ice-ocean interactions at the Northeast Greenland Ice stream (NEGIS) over the past 11,000 years (2023)
Journal Article
Lloyd, J. M., Ribeiro, S., Weckström, K., Callard, L., Ó Cofaigh, C., Leng, M. J., …Roberts, D. H. (2023). Ice-ocean interactions at the Northeast Greenland Ice stream (NEGIS) over the past 11,000 years. Quaternary Science Reviews, 308, Article 108068. https://doi.org/10.1016/j.quascirev.2023.108068

Recent observations have identified increased mass loss from Greenland marine-terminating outlet glaciers (MTOG) with implications for global sea-level rise and wider ocean circulation. The flow of Atlantic-sourced waters to the Greenland margin is t... Read More about Ice-ocean interactions at the Northeast Greenland Ice stream (NEGIS) over the past 11,000 years.

Ecosystem deterioration in the middle Yangtze floodplain lakes over the last two centuries: Evidence from sedimentary pigments (2023)
Journal Article
Zeng, L., Swann, G. E., Leng, M. J., Chen, X., Ji, J., Huang, X., & McGowan, S. (2023). Ecosystem deterioration in the middle Yangtze floodplain lakes over the last two centuries: Evidence from sedimentary pigments. Quaternary Science Reviews, 302, Article 107954. https://doi.org/10.1016/j.quascirev.2023.107954

Water quality of floodplain lakes in the Yangtze region which supports ca. 450 million people is being severely compromised by nutrient pollution, climate change and dam installation resulting from intensive socio-economic development. However, due t... Read More about Ecosystem deterioration in the middle Yangtze floodplain lakes over the last two centuries: Evidence from sedimentary pigments.

Eutrophication has a greater influence on floodplain lake carbon cycling than dam installation across the middle Yangtze region (2022)
Journal Article
Zeng, L., McGowan, S., Swann, G. E., Leng, M. J., & Chen, X. (2022). Eutrophication has a greater influence on floodplain lake carbon cycling than dam installation across the middle Yangtze region. Journal of Hydrology, 614, Article 128510. https://doi.org/10.1016/j.jhydrol.2022.128510

Carbon cycling in shallow floodplain lakes is complex due to variability in delivery of flood-derived allochthonous organic matter (OM). Human activities have potential to significantly modify the carbon balance of lakes by damming which restricts ex... Read More about Eutrophication has a greater influence on floodplain lake carbon cycling than dam installation across the middle Yangtze region.

In flux: Annual transport and deposition of suspended heavy metals and trace elements in the urbanised, tropical Red River Delta, Vietnam (2022)
Journal Article
Roberts, L. R., Do, N. T., Panizzo, V. N., Taylor, S., Watts, M., Hamilton, E., …Salgado, J. (2022). In flux: Annual transport and deposition of suspended heavy metals and trace elements in the urbanised, tropical Red River Delta, Vietnam. Water Research, 224, Article 119053. https://doi.org/10.1016/j.watres.2022.119053

Due to the depositional environment, river deltas are said to act as filters and sinks for pollutants. However, many deltas are also densely populated and rapidly urbanizing, creating new and increased sources of pollutants. These sources pose the ri... Read More about In flux: Annual transport and deposition of suspended heavy metals and trace elements in the urbanised, tropical Red River Delta, Vietnam.

Reconstruction of short-term storm surge-driven increases in shallow coastal lake salinity using ostracod shell chemistry (2022)
Journal Article
Roberts, L. R., Holmes, J. A., Horne, D. J., Leng, M. J., Sayer, C. D., Timms, R. G. O., …Kelly, A. (2022). Reconstruction of short-term storm surge-driven increases in shallow coastal lake salinity using ostracod shell chemistry. Natural Hazards, https://doi.org/10.1007/s11069-022-05459-9

Climate change threatens the current protection provided by coastal defences in low-lying mid-latitude regions and increases the risk to coastal lakes from future frequent and intense storms. Quantifying and understanding the impacts of past storm su... Read More about Reconstruction of short-term storm surge-driven increases in shallow coastal lake salinity using ostracod shell chemistry.

Stalagmite evidence for Early Holocene multidecadal hydroclimate variability in Ethiopia (2022)
Journal Article
Asrat, A., Baker, A., Duan, W., Leng, M. J., Boomer, I., Akter, R., …Wang, L. (2022). Stalagmite evidence for Early Holocene multidecadal hydroclimate variability in Ethiopia. Quaternary Research, 110, 67-81. https://doi.org/10.1017/qua.2022.29

A multiproxy oxygen and carbon isotope (δ13C and δ18O), growth rate, and trace element stalagmite paleoenvironmental record is presented for the Early Holocene from Ethiopia. The annually laminated stalagmite grew from 10.6 to 10.4 ka and from 9.7 to... Read More about Stalagmite evidence for Early Holocene multidecadal hydroclimate variability in Ethiopia.