  While in recent years, gyrokinetic simulations have become the workhorse for
theoretical turbulence and transport studies in the plasma core, their
application to the edge and scrape-off layer (SOL) region presents significant
challenges. In particular, steep density and temperature gradients as well as
large fluctuation amplitudes call for a "full-f" treatment. To specifically
study problems in the SOL region, the gyrokinetic particle-in-cell (PIC) code
PICLS has been developed. The code is based on an electrostatic full-f model
with linearised field equations and uses kinetic electrons. Here, the
well-studied parallel transport problem during an edge-localized mode (ELM) in
the SOL shall be investigated for one spatial dimension. The results are
compared to previous gyrokinetic continuum and fully kinetic PIC simulations
and show good agreement.
