Organics in environmental ices: sources, chemistry, and impacts

V. F. Mcneill (1) , A. M. Grannas (2) , J. P. D. Abbatt (3) , M. Ammann (4) , P. Ariya (5, 6) , T. Bartels-Rausch (4) , F. Domine (7) , D. J. Donaldson (3) , M. I. Guzman (8) , D. Heger (9, 10) , T. F. Kahan (11) , P. Klán (9, 10) , S. Masclin (12) , C. Toubin (13) , D. Voisin (14)

1 Department of Chemical Engineering
2 Department of Chemistry
3 Department of Chemistry [University of Toronto]
4 Laboratory of Radio- and Environmental Chemistry [Villigen]
5 Department of Atmospheric and Oceanic Sciences [Montréal]
6 Department of Chemistry [Montréal]
7 Takuvik Joint International Laboratory ULAVAL-CNRS
8 Department of Chemistry
9 Department of Chemistry
10 RECETOX / MUNI - Research Centre for Toxic Compounds in the Environment [Brno]
11 Department of Chemistry [Syracuse, NY]
12 Environmental Systems
13 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
14 LGGE - Laboratoire de glaciologie et géophysique de l'environnement

The physical, chemical, and biological processes involving organics in ice in the environment impact a number of atmospheric and biogeochemical cycles. Organic material in snow or ice may be biological in origin, deposited from aerosols or atmospheric gases, or formed chemically in situ. In this manuscript, we review the current state of knowledge regarding the sources, properties, and chemistry of organic materials in environmental ices. Several outstanding questions remain to be resolved and fundamental data gathered before an accurate model of transformations and transport of organic species in the cryosphere will be possible. For example, more information is needed regarding the quantitative impacts of chemical and biological processes, ice morphology, and snow formation on the fate of organic material in cold regions. Interdisciplinary work at the interfaces of chemistry, physics and biology is needed in order to fully characterize the nature and evolution of organics in the cryosphere and predict the effects of climate change on the Earth's carbon cycle.

Domains: Earth Sciences

V. F. Mcneill, A. M. Grannas, J. P. D. Abbatt, M. Ammann, P. Ariya, et al.. Organics in environmental ices: sources, chemistry, and impacts. Atmospheric Chemistry and Physics, 2012, 12, pp.9653- 9678. ⟨10.5194/acp-12-9653-2012⟩. ⟨insu-00843968⟩