Paleo±Dust: Quantifying uncertainty in paleo-dust deposition across archive types

COSENTINO, NICOLÁS; GABRIELA TORRE; FABRICE LAMBERT; SAMUEL ALBANI; FRANÇOIS DE VLEESCHOUWER; ALOYS BORY

NATURAL HAZARDS AND EARTH SYSTEM SCIENCES

COPERNICUS PUBLICATIONS

Lugar: Gottingen; Año: 2024

1561-8633

Mineral dust aerosol concentrations in the atmosphere varied greatly on glacial-interglacial timescales. The greatest changes in global dust activity occurred in response to changes in orbital parameters that affect dust emission intensity through glacial activity, and dust lifetime in the atmosphere through changes in the global hydrological cycle.Long-term changes in surface dust deposition rate are registered in geological archives such as loess, peats, lakes, marine sediments, and ice. Data provided by these archives is crucial for guiding simulations of dust, and for better understanding the natural global dust cycle. However, the methods employed to derive paleo-dust deposition rates differ markedly between archives and are subject to different sources of uncertainty. Here, we present Paleo±Dust, an updated compilation of bulk and