The SUBITOP ETN framework can be reached via the official email account, hosted at the project management institution: subitop(at)gfz-potsdam.de.
You may send letters etc. to the following address:
Dr. Michael Dietze
Sektion 5.1, Geomorphology
Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum GFZ
Telegrafenberg Building F 427
D-14473 Potsdam
Phone: +49 331 288-28827