Frequent new particle formation over the high Arctic pack ice by enhanced iodine emissions

A Baccarini, L Karlsson, J Dommen, P Duplessis… - Nature …, 2020 - nature.com
Abstract In the central Arctic Ocean the formation of clouds and their properties are sensitive
to the availability of cloud condensation nuclei (CCN). The vapors responsible for new …

[HTML][HTML] Testing the environmental controls of microbial nitrogen-mining induced by semi-continuous labile carbon additions in the subarctic

M Na, M Yuan, LC Hicks, J Rousk - Soil Biology and Biochemistry, 2022 - Elsevier
Climate warming and shrubification will affect soil carbon (C) cycling in arctic ecosystems.
Rhizosphere inputs from increased plant productivity by shrubification may stimulate the …

The nitrogen cycle in cryoconites: naturally occurring nitrification‐denitrification granules on a glacier

T Segawa, S Ishii, N Ohte, A Akiyoshi… - Environmental …, 2014 - Wiley Online Library
Cryoconites are microbial aggregates commonly found on glacier surfaces where they tend
to take spherical, granular forms. While it has been postulated that the microbes in …

Glacial water: a dynamic microbial medium

G Varliero, PH Lebre, B Frey, AG Fountain, AM Anesio… - Microorganisms, 2023 - mdpi.com
Microbial communities and nutrient dynamics in glaciers and ice sheets continuously
change as the hydrological conditions within and on the ice change. Glaciers and ice sheets …

Microbial dynamics in a High Arctic glacier forefield: a combined field, laboratory, and modelling approach

JA Bradley, S Arndt, M Šabacká, LG Benning… - …, 2016 - bg.copernicus.org
Modelling the development of soils in glacier forefields is necessary in order to assess how
microbial and geochemical processes interact and shape soil development in response to …

Large cryoconite aggregates on a Svalbard glacier support a diverse microbial community including ammonia-oxidizing archaea

JD Zarsky, M Stibal, A Hodson, B Sattler… - Environmental …, 2013 - iopscience.iop.org
The aggregation of surface debris particles on melting glaciers into larger units (cryoconite)
provides microenvironments for various microorganisms and metabolic processes. Here we …

Increased above-and belowground plant input can both trigger microbial nitrogen mining in subarctic tundra soils

LC Hicks, M Yuan, A Brangarí, K Rousk, J Rousk - Ecosystems, 2022 - Springer
Low nitrogen (N) availability in the Arctic and Subarctic constrains plant productivity,
resulting in low litter inputs to soil. Increased N availability and litter inputs as a result of …

Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea

A Mo, EJ Yang, SH Kang, D Kim, K Lee… - Frontiers in Marine …, 2022 - frontiersin.org
The role of sea ice melting on the air-sea CO2 flux was investigated at two ice camps in the
East Siberian Sea of the Arctic Ocean. On average, sea ice samples from the two ice camps …

Strong wintertime ozone events in the Upper Green River basin, Wyoming

B Rappenglück, L Ackermann, S Alvarez… - Atmospheric …, 2014 - acp.copernicus.org
During recent years, elevated ozone (O 3) values have been observed repeatedly in the
Upper Green River basin (UGRB), Wyoming, during wintertime. This paper presents an …

Diurnal cycle of iodine, bromine, and mercury concentrations in Svalbard surface snow

A Spolaor, E Barbaro, D Cappelletti… - Atmospheric …, 2019 - acp.copernicus.org
Sunlit snow is highly photochemically active and plays a key role in the exchange of gas
phase species between the cryosphere and the atmosphere. Here, we investigate the …