Sunset at summer solstice (31º S 25º W), near the end of the AMT meridian. Tomorrow, we'll start heading west to Montevideo. #AMT31 #RRSJamesCook @plymouthmarine.bsky.social @uniofeastanglia.bsky.social @noc.ac.uk

Blue sky & South Atlantic #AMT31 #JC272 #NEODAAS #CO2 #polyisotopologues @plymouthmarine.bsky.social @uniofeastanglia.bsky.social @ukri.org

Just west of the Cape Verde Islands, we've collected a lot of Saharan dust on our aerosol filters - as well as on the optical sensors and the rest of the ship! #JC272 #AMT31 @plymouthmarine.bsky.social @uniofeastanglia.bsky.social @ukri.org

Saharan dust gives pretty sunrises and sunsets over the North Atlantic. JC272, RRS James Cook #cruising #POLYGRAM #AMT31 @uniofeastanglia.bsky.social @plymouthmarine.bsky.social

Departing for my first cruise in 16 years: AMT31 on RRS James Cook, Southampton - Buenos Aires. Mobilisation with Penelope Pickers (UEA), sailing with Rafael Mendes & Raul Costa (FURG) and 6 other scientists. @plymouthmarine.bsky.social @ukri.org @uniofeastanglia.bsky.social #JC272, #AMT31, #NEODAAS