Frank Jean-Marie Léon Pattyn is a Belgian glaciologist and professor at the Université libre de Bruxelles.

[9] Pattyn has authored over 70 peer-review papers[10] (including 6 from high-profile journals) covering various aspect of glaciology, which are cited over 1700 times.

[10] His research includes ice-sheet modelling with in situ and remote sensing observations, to evaluate the present-day and future mass changes of the Antarctic ice sheet.

In particular, he developed the Grantism model,[14] which allows to simulate the evolution of the Greenland and the Antarctic according to parameters understandable to all (temperature, sea level).

[15] Pattyn has received the 2018 Louis Agassiz Medal,[16] an award[17] from the European Geosciences Union that recognises his outstanding scientific contribution to the study of the cryosphere.