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

• Main Authors: Cosentino, Nicolás J, Torre, Gabriela, Lambert, Fabrice, Albani, Samuel, De Vleeschouwer, Francois, Bory, Aloys J-M
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2024
• Subjects: Dust flux; Holocene; Ice core; Lake sediment core; Last Glacial Maximum; Loess; Marine Sediment Core; Peat bog; Uncertainty; ice core; South Atlantic Ocean
• Online Access: https://dx.doi.org/10.1594/pangaea.962969; https://doi.pangaea.de/10.1594/PANGAEA.962969

Paleo±Dust is an updated compilation of bulk and <10-µm paleo-dust deposition rate with quantitative 1-σ uncertainties that are inter-comparable among archive types (lake sediment cores, marine sediment cores, polar ice cores, peat bog cores, loess samples). Paleo±Dust incorporates a total of 285 pre-industrial Holocene (pi-HOL) and 209 Last Glacial Maximum (LGM) dust flux constraints from studies published until December 2022. We also recalculate previously published dust fluxes to exclude data from the last deglaciation and thus obtain more representative constraints for the last pre-industrial interglacial and glacial end-member climate states. Metadata include all components necessary to derive dust deposition rate, including: age range, thickness, density, eolian content. We also include 1-sigma uncertainties on each of these components, and on the final bulk and <10-µm dust deposition rates. Specific notes for each site and a list of references are also included. ... : Supported by: Dust emission and deposition in South America and the South Atlantic ocean at various times during the Holocene and last deglaciation: A combined modelling and proxy data approach, ANID-FONDECYT-POSTDOCTORADO2020-3200085 Constraining the effect of South American dust on atmospheric CO2 changes, ANID-FONDECYT-REGULAR2023-1231682 A-dust: Andean dust from sources to sinks, CLIMAT-AmSud 22-CLIMAT-01INQUA Fellowship awarded to NJC: "Dust-borne soluble iron delivery to the glacial oceans ...