Cryoconite holes are water-filled holes in the surface of a glacier caused by enhanced ice melt around trapped sediment. Measurements on the ablation zones of four glaciers in Taylor Valley, Antarctica, show that cryoconite holes cover about 4-6% of the ice surface. They typically vary in ...
Cryoconite holes are the most active and diverse microbial habitats on glacier and ice-sheet surfaces. In this article the authors demonstrate that the shape of cryoconite holes varies depending on ice-surface topography and that this has implications for the carbon cycling regime within. Net ...
The terminal part of the Morteratsch glacier from a photogrammetric reconstruction (September 2016). Cryoconite samples collection sites are indicated by dots (black 2015; white 2016), the black square is used for moraine sediment collection site). On the right some cryoconite holes sampled to the...
higher content of organic carbon in soils (up to 7.82%) in comparison with cryoconite (max. 1.63%) due to presence of vegetation, however, the basal respiration values in some cases were similar between сryoconite and soils, indicating high rates of microbial activity in a cryoconite holes....
Cryoconite holes are ice-bound habitats that can act as refuges for aquatic and terrestrial microorganisms on glacier surfaces. In the McMurdo Dry Valleys ... LF Stanish,EA Bagshaw,DM Mcknight,... - 《Environmental Research Letters》 被引量: 26发表: 2013年 Response of Antarctic cryoconite micr...
3.1. Methane flux from cryoconite holes Measurements of CH4 fluxes in glacial basins of the TP show large CH4 reserves, indicating a net export of methane to the atmosphere during the summer season (Fig. 3). Regarding the glacier cryoconite holes, the export of methane was more significant in...
Panelcshows typical cryoconite holes from Greenland with the authors boot for scale (Photo credit: C. Bellas); Paneldis the frequency distribution of all detected MGI lengths; Paneleshows a heat map of the mean base pairs of MGI per kb of virus reference genome for each read mapping combinat...
Define cryoconite. cryoconite synonyms, cryoconite pronunciation, cryoconite translation, English dictionary definition of cryoconite. pl n a dark powder found at the bottom of glacier holes, formerly thought to be cosmic in origin but now widely regarde
Cryoconite holes are water filled depressions on the surface of glaciers. They form when heat is absorbed by wind deposited sediment that has accumulated on a glacier's surface, subsequently melting underlying ice. They contain microbial communities and may contribute to glacial wastage and biological...
2008. Introduction to a special section on microcosms in ice: Biogeochemistry of Cryoconite Holes. Journal of Geophysical Research 113: G02S91.Fountain, A.G., Tranter, M., 2008. Introduction to special section on microcosms in ice: the biogeochemistry of cryoconite holes. Journal of Geophysical...