Reproducing Arctic springtime tropospheric ozone and mercury depletion events in an outdoor mesocosm sea ice facility

Autor: Z. Gao, N.-X. Geilfus, A. Saiz-Lopez, F. Wang

Publikováno v: Atmospheric Chemistry and Physics, Vol 22, Pp 1811-1824 (2022)

The episodic buildup of gas-phase reactive bromine species over sea ice and snowpack in the springtime Arctic plays an important role in boundary layer processes, causing annual concurrent depletion of ozone and gaseous elemental mercury (GEM) during

Externí odkaz: https://doaj.org/article/d9dcfe13481f49b2934c8b7f38074e39

Imaging air volume fraction in sea ice using non-destructive X-ray tomography

Autor: O. Crabeck, R. Galley, B. Delille, B. Else, N.-X. Geilfus, M. Lemes, M. Des Roches, P. Francus, J.-L. Tison, S. Rysgaard

Publikováno v: The Cryosphere, Vol 10, Iss 3, Pp 1125-1145 (2016)

Although the presence of a gas phase in sea ice creates the potential for gas exchange with the atmosphere, the distribution of gas bubbles and transport of gases within the sea ice are still poorly understood. Currently no straightforward technique

Externí odkaz: https://doaj.org/article/e962a857b96d496c95c06a9de9b17744

CO2 and CH4 in sea ice from a subarctic fjord under influence of riverine input

Autor: O. Crabeck, B. Delille, D. Thomas, N.-X. Geilfus, S. Rysgaard, J.-L. Tison

Publikováno v: Biogeosciences, Vol 11, Iss 23, Pp 6525-6538 (2014)

We present the CH4 concentration [CH4], the partial pressure of CO2 (pCO2) and the total gas content in bulk sea ice from subarctic, land-fast sea ice in the Kapisillit fjord, Greenland. Fjord systems are characterized by freshwater runoff and riveri

Externí odkaz: https://doaj.org/article/23c393a71be2431995f81ee8f95e2434

Temporal dynamics of ikaite in experimental sea ice

Autor: S. Rysgaard, F. Wang, R. J. Galley, R. Grimm, D. Notz, M. Lemes, N.-X. Geilfus, A. Chaulk, A. A. Hare, O. Crabeck, B. G. T. Else, K. Campbell, L. L. Sørensen, J. Sievers, T. Papakyriakou

Publikováno v: The Cryosphere, Vol 8, Iss 4, Pp 1469-1478 (2014)

Ikaite (CaCO3 · 6H2O) is a metastable phase of calcium carbonate that normally forms in a cold environment and/or under high pressure. Recently, ikaite crystals have been found in sea ice, and it has been suggested that their precipitation may play

Externí odkaz: https://doaj.org/article/c1c1adab077e4cf4a0c0b9a3aa0feb90

Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica

Autor: N.-X. Geilfus, J.-L. Tison, S. F. Ackley, R. J. Galley, S. Rysgaard, L. A. Miller, B. Delille

Publikováno v: Geilfus, N-X, Tison, J-L, Ackley, S F, Galley, R J, Rysgaard, S, Miller, L A & Delille, B 2014, ' Sea ice pCO 2 dynamics and air-ice CO 2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment-Bellingshausen Sea, Antarctica ', The Cryosphere Discussions, vol. 8, pp. 2395-2407 . https://doi.org/10.5194/tc-8-2395-2014
The Cryosphere, Vol 8, Iss 6, Pp 2395-2407 (2014)

Temporal evolution of pCO2 profiles in sea ice in the Bellingshausen Sea, Antarctica, in October 2007 shows physical and thermodynamic processes controls the CO2 system in the ice. During the survey, cyclical warming and cooling strongly influenced t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::cae96ca0b7656da36855fc18850bf790
https://www.the-cryosphere.net/8/2395/2014/