Vertical distribution of aerosols in dust storms during the Arctic winter.

ABSTRACT: High Latitude Dust (HLD) contributes 5% to the global dust budget, but HLD measurements are sparse. Dust observations from Iceland provide dust aerosol distributions during the Arctic winter for the first time, profiling dust storms as well as clean air conditions. Five winter dust storms were captured during harsh conditions. Mean number concentrations during the non-dust flights were <5 particles cm^-3 for the particles 0.2-100 µm in diameter and >40 particles cm^-3 during dust storms. A moderate dust storm with >250 particles cm^-3 (2 km altitude) was captured on 10^th January 2016 as a result of sediments suspended from glacial outburst flood Skaftahlaup in 2015. Similar concentrations were reported previously in the Saharan air layer. Detected p

SUBMITTER: Dagsson-Waldhauserova P 

PROVIDER: S-EPMC6834589 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature