Greenland Ice Core Record of Last Glacial Dust Sources and Atmospheric Circulation.

ABSTRACT: Abrupt and large-scale climate changes have occurred repeatedly and within decades during the last glaciation. These events, where dramatic warming occurs over decades, are well represented in both Greenland ice core mineral dust and temperature records, suggesting a causal link. However, the feedbacks between atmospheric dust and climate change during these Dansgaard-Oeschger events are poorly known and the processes driving changes in atmospheric dust emission and transport remain elusive. Constraining dust provenance is key to resolving these gaps. Here, we present a multi-technique analysis of Greenland dust provenance using novel and established, source diagnostic isotopic tracers as well as results from a regional climate model including dust cycle simulations. We show that the exist

SUBMITTER: Ujvari G 

PROVIDER: S-EPMC9542552 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature