Impact of dust on climate and AMOC during the Last Glacial Maximum simulated by CESM1.2

While the impact of dust on climate and Atlantic Meridional Overturning Circulation (AMOC) during the interglacial period such as the mid-Holocene has been studied extensively, its impact during the glacial period is unclear. Here we investigate how the climate and AMOC would change if there had been no dust during the Last Glacial Maximum. Model simulations show that the dust removal leads to a global cooling of over 2.4 degrees C and a weakening of AMOC by similar to 30%. Such temperature change is opposite in sign to that for the MH. The cooling is attributed to the increase of snow and ice albedo and weakening of AMOC when dust is removed, and is amplified through a positive feedback between sea ice and AMOC. Our results indicate that the climate and AMOC are more sensitive to dust change during the glacial than the interglacial period.

To Access Resource:

Questions? Email Resource Support Contact:

  • opensky@ucar.edu
    UCAR/NCAR - Library

Resource Type publication
Temporal Range Begin N/A
Temporal Range End N/A
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format PDF
Standardized Resource Format PDF
Asset Size N/A
Legal Constraints

Copyright 2022 American Geophysical Union. (AGU).
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email opensky@ucar.edu
Resource Support Organization UCAR/NCAR - Library
Distributor N/A
Metadata Contact Name N/A
Metadata Contact Email opensky@ucar.edu
Metadata Contact Organization UCAR/NCAR - Library

Author Zhang, Ming
Liu, Yonggang
Zhu, Jiang
Wang, Zhuoqun
Liu, Zhengyu
Publisher UCAR/NCAR - Library
Publication Date 2022-02-16T00:00:00
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier N/A
Resource Version N/A
Topic Category geoscientificInformation
Progress N/A
Metadata Date 2023-08-18T18:17:59.188127
Metadata Record Identifier edu.ucar.opensky::articles:25182
Metadata Language eng; USA
Suggested Citation Zhang, Ming, Liu, Yonggang, Zhu, Jiang, Wang, Zhuoqun, Liu, Zhengyu. (2022). Impact of dust on climate and AMOC during the Last Glacial Maximum simulated by CESM1.2. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7h135jh. Accessed 29 June 2025.

Harvest Source