Atmospheric Deposition of Local Mineral Dust Delivers Phosphorus to the Greenland Ice Sheet.

ABSTRACT: Aerosol composition, size, and deposition rate determine the impact these particles have on cryosphere environments. Mineralogical, biological, and geochemical characteristics of aerosols collected over two years from the southwest Greenland Ice Sheet indicate that aerosols delivered via dry deposition and in snow primarily consisted of silicate minerals, with mean particle diameters of 1.01 ± 1.58 μm (2016) and 0.76 ± 0.87 μm (2017) for dry deposition and 2.4 ± 3.2 μm for dust delivered in snow (2017). The rare earth element signature of the delivered dust was typical of nearby Greenlandic lithologies, and combining this with other geochemical results and airmass history modeling indicated that the airborne mineral dust collected on-ice was likely from local emission sources, namel

SUBMITTER: McCutcheon J 

PROVIDER: S-EPMC12854737 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature