Articles | Volume 20, issue 4
Research article
 | Highlight paper
27 Feb 2020
Research article | Highlight paper |  | 27 Feb 2020

Ultra-clean and smoky marine boundary layers frequently occur in the same season over the southeast Atlantic

Sam Pennypacker, Michael Diamond, and Robert Wood


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Wenzel on behalf of the Authors (10 Jan 2020)  Author's response
ED: Referee Nomination & Report Request started (10 Jan 2020) by Paquita Zuidema
RR by Anonymous Referee #2 (15 Jan 2020)
RR by Anonymous Referee #1 (30 Jan 2020)
ED: Publish as is (30 Jan 2020) by Paquita Zuidema
Short summary
Using observations from instruments deployed to a small island in the southeast Atlantic, we study days when the atmospheric concentrations of particles near the surface are exceptionally low. Interestingly, these ultra-clean boundary layers occur in the same months as the smokiest boundary layers associated with biomass burning in Africa. We find evidence that enhancements in drizzle scavenging, on top of a seasonal maximum in cloudiness and precipitation, likely drive these conditions.
Final-revised paper