Inverse modeling of past lead atmospheric deposition in South Greenland

6533b7d0fe1ef96bd125a476

RESEARCH PRODUCT

Inverse modeling of past lead atmospheric deposition in South Greenland

Emilie Gauthier Rémi Losno Hervé Richard Vincent Bichet Fabrice Monna Charly Massa

subject

Pollution Atmospheric Science Peat 010504 meteorology & atmospheric sciences media_common.quotation_subject Lead (sea ice)Sediment 010501 environmental sciences 01 natural sciences Natural (archaeology)Oceanography Flux (metallurgy)13. Climate action [ SDU.ENVI ] Sciences of the Universe [physics]/Continental interfaces environment Sedimentary rock Physical geography [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Geology ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences General Environmental Science media_common

description

The aim of this study is to model atmospheric lead fluxes in two different paleoenvironmental records located in southern Greenland. Fifty five sediment samples collected from the Lake Igaliku sedimentary sequence were analyzed for lead and aluminum concentrations, and lead isotopic compositions. The second archive consists in a previously published dataset, obtained from a minerogenic peat deposit, located at Tasiusaq, 16 km northwest from Lake Igaliku. A flux model fitted to both dataset produces similar results, allowing past anthropogenic atmospheric deposition to be reconstructed. This original method can be easily adapted for other studies where natural inputs dominate over discrete anthropogenic inputs.

year	journal	country	edition	language
2015-03-01

10.1016/j.atmosenv.2015.01.025 https://hal.archives-ouvertes.fr/hal-01119230

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