ACA Action Group Report 2022 Popular

Antarctic Clouds and Aerosols (ACA) 2020-22 Report

Action Group of the Physical Sciences Group

Report Author: Tom Lachlan-Cope (UK)

Summary of activities from 2020-22

The development of a database of cloud observations (starting with ceilometer measurements) is now under the leadership of Adrian McDonald in New Zealand.

There was a meeting to discuss coordination of observations of clouds and aerosols over the Antarctic Peninsula. This includes the UK Southern Ocean clouds project which is taking ground-based measurements at Rothera, the Chilean observations being taken at Marsh, Dan Lubin's proposed project at Palmer (called Alcina) and a Spanish cruise in the 2022/23 season. Cooperation has been organized between the Spanish cruise and aircraft observations BAS plans to make from Rothera. In the 2023/24 season BAS will have a planned cruise concentrating on aerosols and clouds and it is hoped that Lubin's project will be funded by then. There is a lot going on over the Peninsula and ACA is proving an effective forum for coordinating this work.