The quest for atmospheric spectral signatures that may witness biological
activity in exoplanets is focused on rocky planets. The best targets for
future, challenging spectroscopic observations will be selected among
potentially habitable planets. Surface habitability can be quantified and
explored with climate and atmospheric models according to temperature-based
criteria. The conceptual, modellistic, technological and interpretative
complexity of the problem requires to develop flexible climate and atmospheric
models suited for a comprehensive exploration of observationally unconstrained
parameters, and to simulate and interpret definitely non-terrestrial
conditions. We present a summary and preliminary results on the work we are
performing on multi-parametric explorations of the habitability and
observational properties of rocky planets.Comment: to appear on MemSAIt, vol 94. Proceedings of the Hack100 Conference:
Past, Present and Future of Astrophysical Spectroscopy, 6-10 June 2022,
Trieste, Ital