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

Past Cabo Finisterre, the sun is shining, the waves have calmed down and the RRS James Cook is back to 10 kn. Just the noise in the data is still there ... #happysailing #POLYGRAM #isotopes @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

Back from ICOS 2024 in Versailles and learnt about a great science communication–air quality–urban greenhouse gas measurement collaboration, near Pont de Garigliano in Parque André Citroën ballondeparis.com