Tropical Atlantic basin hydroclimate change: learning from long instrumental records

16 May (1PM-5PM) & 17 May (9AM-5PM) 2023 CET, University of Bern, Switzerland, and online

Organizers: Andrew Friedman and Stefan Brönnimann (University of Bern, Institute of Geography & Oeschger Centre for Climate Change Research)

Tropical Atlantic
Main meteorological observation station at Buea (Cameroon) with Mount Cameroon (1913) (Source DWD, Archive of the Deutsche Seewarte). Picture top right: Seawater measurement bucket. Photo: Théophile Lebrun. Picture bottom left: Nicholson et al., Global and Planetary Change, 2018. Picture bottom right: Antico et al., Water Resources Research, 2018.


The goal of this interdisciplinary workshop is to discuss research on hydroclimate change around the tropical Atlantic basin with a focus on long instrumental measurements from the historical period. The tropical Atlantic basin holds vital ecosystems, important agricultural regions, and the largest planetary river systems, and its freshwater budget may play a role in global ocean circulation. There is a need for a basin-wide hydroclimate perspective as precipitation and river discharge variability in Africa and the Americas are linked through common processes such intertropical convergence zone (ITCZ) shifts and Atlantic multidecadal SST variability (AMV). Instrumental hydroclimate records – in some cases going back to the 19th century – are valuable for understanding these processes, and for contextualizing paleoclimate, present-day, and projected future hydroclimate changes. We aim to bring together researchers working around the tropical Atlantic basin (broadly defined) who are developing instrumental records (e.g., through data rescue and recovery) with researchers investigating mechanisms of hydroclimate variability and climate change impacts, so that we can share expertise and benefit from each other’s work and approach.


Presenters include:

Felicia Akinyemi (University of Bern)
Andrés Antico (CONICET - National University of the Littoral)
Jonathan Barichivich (LSCE-IPSL)
Ansoumana Bodian (Université Gaston Berger de Saint Louis)
Aiguo Dai (SUNY Albany)
Alessandra Giannini (Ecole Normale Supérieure - LMD)
Stefan Grab (University of the Witwatersrand)
Koen Hufkens (University of Bern)
Teresa Losada (Universidad Complutense de Madrid)
Marta Martin-Rey (Universidad Complutense de Madrid)
Guy Moukandi (Université Marien-Ngouabi)
Sharon Nicholson (Florida State University)
Natan Silva Pereira (State University of Bahia)
Gilles Reverdin (LOCEAN-IPSL)
Public transport: Line 20 heading for Länggasse, Mittelstrasse stops | Linie 11 Neufeld, Bierhübeli stops



Participation in the workshop (in-person and online) is free of charge. If you would like to participate, please send an email to Andrew Friedman ( by 28 April 2023.

General Information

The workshop will be held in a hybrid format.

The in-person workshop will be held at Mittelstrasse 43 room 220 on the University of Bern campus.

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