  We present simulations of Lyman-Alpha radiation transfer in an isolated disk
galaxy with a turbulence sub-grid model, multi-phase interstellar medium and
detailed star formation modelling. We investigate the influence of inclination
on the observed Lyman-Alpha properties for different snapshots. The Lyman-alpha
spectrum, equivalent width distribution and escape fractions vary significantly
with the detailed morphology of the disk, leading to variations from one
snapshot to another. In particular, we find that supernova-driven cavities near
star-forming regions in the simulation can dominate the transmitted Lyman-alpha
fraction, suggesting a variability of LAEs on the timescales of the star
formation activity.
