Black carbon footprint of human presence in Antarctica.

Autor: Cordero RR; Universidad de Santiago de Chile. Av. Bernardo O'Higgins, 3363, Santiago, Chile., Sepúlveda E; Universidad de Santiago de Chile. Av. Bernardo O'Higgins, 3363, Santiago, Chile., Feron S; Universidad de Santiago de Chile. Av. Bernardo O'Higgins, 3363, Santiago, Chile. s.c.feron@rug.nl.; University of Groningen, 8911 CE, Leeuwarden, The Netherlands. s.c.feron@rug.nl., Damiani A; Center for Environmental Remote Sensing, Chiba University, 1-33 Yayoicho, Inage Ward, Chiba, 263-8522, Japan. damiani@chiba-u.jp., Fernandoy F; Universidad Andrés Bello, Quillota 980, Viña del Mar, Chile., Neshyba S; University of Puget Sound, Department of Chemistry, Tacoma, WA, USA., Rowe PM; NorthWest Research Associates, Redmond, WA, USA., Asencio V; Select Carbon Pty Ltd, 562 Wellington Street, Perth, WA, 6000, Australia., Carrasco J; University of Magallanes, Av. Manuel Bulnes 1855, Punta Arenas, Chile., Alfonso JA; Instituto Venezolano de Investigaciones Cientificas (IVIC), Apartado, 20632, Caracas, Venezuela., Llanillo P; Alfred Wegener Institute (AWI), Am Handelshafen 12, 27570, Bremerhaven, Germany., Wachter P; German Aerospace Center (DLR), German Remote Sensing Data Center (DFD), Wessling, Germany., Seckmeyer G; Leibniz Universität Hannover, Herrenhauser Strasse 2, Hannover, Germany., Stepanova M; Universidad de Santiago de Chile. Av. Bernardo O'Higgins, 3363, Santiago, Chile. marina.stepanova@usach.cl., Carrera JM; Universidad de Santiago de Chile. Av. Bernardo O'Higgins, 3363, Santiago, Chile., Jorquera J; Universidad de Santiago de Chile. Av. Bernardo O'Higgins, 3363, Santiago, Chile., Wang C; Department of Earth System Science, Stanford University, Stanford, CA, 94305, USA., Malhotra A; University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland., Dana J; Western Washington University, 516 High St, Bellingham, WA, 98225, USA., Khan AL; Western Washington University, 516 High St, Bellingham, WA, 98225, USA.; National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado-Boulder, Boulder, CO, USA., Casassa G; University of Magallanes, Av. Manuel Bulnes 1855, Punta Arenas, Chile.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2022 Feb 22; Vol. 13 (1), pp. 984. Date of Electronic Publication: 2022 Feb 22.
DOI: 10.1038/s41467-022-28560-w
Abstrakt: Black carbon (BC) from fossil fuel and biomass combustion darkens the snow and makes it melt sooner. The BC footprint of research activities and tourism in Antarctica has likely increased as human presence in the continent has surged in recent decades. Here, we report on measurements of the BC concentration in snow samples from 28 sites across a transect of about 2,000 km from the northern tip of Antarctica (62°S) to the southern Ellsworth Mountains (79°S). Our surveys show that BC content in snow surrounding research facilities and popular shore tourist-landing sites is considerably above background levels measured elsewhere in the continent. The resulting radiative forcing is accelerating snow melting and shrinking the snowpack on BC-impacted areas on the Antarctic Peninsula and associated archipelagos by up to 23 mm water equivalent (w.e.) every summer.
(© 2022. The Author(s).)
Databáze: MEDLINE
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