All Outputs (3)

Frazil ice changes winter biogeochemical processes in the Lena River (2024)
Journal Article
Opfergelt, S., Gaspard, F., Hirst, C., Monin, L., Juhls, B., Morgenstern, A., Angelopoulos, M., & Overduin, P. P. (2024). Frazil ice changes winter biogeochemical processes in the Lena River. Communications Earth & Environment, 5, Article 738. https://doi.org/10.1038/s43247-024-01884-9

The ice-covered period of large Arctic rivers is shortening. To what extent will this affect biogeochemical processing of nutrients? Here we reveal, with silicon isotopes (δ30Si), a key winter pathway for nutrients under river ice. During colder wint... Read More about Frazil ice changes winter biogeochemical processes in the Lena River.

Evidence for late winter biogeochemical connectivity in permafrost soils (2023)
Journal Article
Hirst, C., Monhonval, A., Mauclet, E., Thomas, M., Villani, M., Ledman, J., Schuur, E. A., & Opfergelt, S. (2023). Evidence for late winter biogeochemical connectivity in permafrost soils. Communications Earth & Environment, 4(1), https://doi.org/10.1038/s43247-023-00740-6

The permafrost active layer is a key supplier of soil organic carbon and mineral nutrients to Arctic rivers. In the active layer, sites of soil-water exchange are locations for organic carbon and nutrient mobilization. Previously these sites were con... Read More about Evidence for late winter biogeochemical connectivity in permafrost soils.

The late field life of the East Midlands Petroleum Province; a new geothermal prospect? (2015)
Journal Article
Hirst, C., Gluyas, J., & Mathias, S. (2015). The late field life of the East Midlands Petroleum Province; a new geothermal prospect?. Quarterly Journal of Engineering Geology and Hydrogeology, 48(2), 104-114. https://doi.org/10.1144/qjegh2014-072

Modification of existing oilfield infrastructure could deliver a cost-effective way to extend the economic life of depleted onshore oilfields. Naturally warm connate and injection water contained within these fields could be initially co-produced wit... Read More about The late field life of the East Midlands Petroleum Province; a new geothermal prospect?.