Quantifying dust deposition over the Atlantic Ocean

作者：Emmanouil Proestakis, Vassilis Amiridis, Carlos Pérez García‐Pando, Svetlana Tsyro, Jan Griesfeller, Antonis Gkikas, Thanasis Georgiou, Marı́a Gonçalves Ageitos, Jerónimo Escribano, Stelios Myriokefalitakis, Elisa Bergas‐Massó, Enza Di Tomaso, Sara Basart, Jan-Berend W Stuut, Angela Benedetti · 发表于：Earth system science data · 年份：2025 · DOI：10.5194/essd-17-4351-2025 · 被引用次数：6 · 研究领域：Atmospheric chemistry and aerosols、Atmospheric aerosols and clouds、Aeolian processes and effects

Abstract. Quantification of atmospheric dust deposition into the Atlantic Ocean is provided. The estimates rely on the four-dimensional structure of atmospheric dust provided by the ESA-LIVAS climate data record established on the basis of CALIPSO-CALIOP observations. The data record of the atmospheric dust deposition rate is provided for the Atlantic Ocean region, between latitudes 60° S and 40° N, and is characterized by 5° (zonal) × 2° (meridional) spatial resolution and seasonal-mean temporal resolution for the period December 2006–November 2022. The estimates of dust deposition are evaluated on the basis of sediment-trap measurements of deposited lithogenic material. The evaluation intercomparison shows a good agreement between the two datasets, revealing the capacity of the satellite-based product to quantitatively provide the amount of dust deposited into the Atlantic Ocean, characterized by a correlation coefficient of 0.79 and a mean bias of 5.42 mg m−2 d−1. Integration of the satellite-based dust deposition rate dataset into AeroVal allowed assessment comparison of the dust deposition product against dust deposition field estimates provided by the MONARCH, EMEP MSC-W, and EC-Earth3-Iron models. The comparison revealed the capacity of the satellite-based product to follow the seasonal activation of dust source regions and the four-dimensional migration of dust transport pathways. Overall, the annual-mean amount of dust deposition into the Atlantic Ocean is estimated ...