Influence of glacier runoff and near-terminus subglacial hydrology on frontal ablation at a large Greenlandic tidewater glacier

Autor: Charlie Bunce, Peter Nienow, Andrew Sole, Tom Cowton, Benjamin Davison

Publikováno v: Journal of Glaciology, Vol 67, Pp 343-352 (2021)

Frontal ablation from tidewater glaciers is a major component of the total mass loss from the Greenland ice sheet. It remains unclear, however, how changes in atmospheric and oceanic temperatures translate into changes in frontal ablation, in part du

Externí odkaz: https://doaj.org/article/6f8a8edf9eec4d46aec097473ab11929

Ice sheets as a missing source of silica to the polar oceans

Autor: Jon R. Hawkings, Jemma L. Wadham, Liane G. Benning, Katharine R. Hendry, Martyn Tranter, Andrew Tedstone, Peter Nienow, Rob Raiswell

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-10 (2017)

Glacial runoff often has relatively low dissolved silica concentrations and therefore ice sheets have been thought insignificant in the global silicon cycle. Here, the authors show that ice sheets likely play an important role in the production and e

Externí odkaz: https://doaj.org/article/683cb6979f484ea9b0b505668b996b3d

Weathering Dynamics Under Contrasting Greenland Ice Sheet Catchments

Autor: Alejandra Urra, Jemma Wadham, Jon R. Hawkings, Jon Telling, Jade E. Hatton, Jacob C. Yde, Bent Hasholt, Dirk van As, Maya P. Bhatia, Peter Nienow

Publikováno v: Frontiers in Earth Science, Vol 7 (2019)

Chemical weathering dynamics in Greenland Ice Sheet (GrIS) catchments are largely unknown, due to a scarcity of field data. This paper presents the most comprehensive study to date of chemical weathering rates from four GrIS catchments of contrasting

Externí odkaz: https://doaj.org/article/24f3a16c6eff4ea195a5fbf3ac160a89

Terminus thinning drives recent acceleration of a Greenlandic lake-terminating outlet glacier

Autor: Ed Holt, Peter Nienow, Encarni Medina-Lopez

Publikováno v: Journal of Glaciology, Pp 1-13

Ice-contact proglacial lakes affect ice dynamics and the transition of glacier termini from land- to lake-terminating has been shown to cause ice flow acceleration. In recent decades, the number and size of Greenlandic ice-marginal lakes has increase

Externí odkaz: https://doaj.org/article/6f90ee3e02724c47aaa26b0f8db82fb6

Review article: Earth's ice imbalance

Autor: Isobel R. Lawrence, Noel Gourmelen, Paul Tepes, Peter Nienow, Livia Jakob, Ines Otosaka, Andrew Shepherd, Thomas Slater, Lin Gilbert

Publikováno v: The Cryosphere, Vol 15, Pp 233-246 (2021)
Slater, T, Lawrence, I R, Otosaka, I N, Shepherd, A, Gourmelen, N, Jakob, L, Tepes, P, Gilbert, L & Nienow, P 2021, ' Review Article: Earth’s ice imbalance ', Cryosphere . https://doi.org/10.5194/tc-15-233-2021

We combine satellite observations and numerical models to show that Earth lost 28 trillion tonnes of ice between 1994 and 2017. Arctic sea ice (7.6 trillion tonnes), Antarctic ice shelves (6.5 trillion tonnes), mountain glaciers (6.1 trillion tonnes)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e550c597045192c63c6e6988556bdc0
https://tc.copernicus.org/articles/15/233/2021/tc-15-233-2021.pdf