### Trajectory heights from WRF

Posted:

**October 1st, 2020, 11:56 am**We are running backward trajectories using WRF model input at different heights. We are wondering if Hysplit uses full models from WRF and interpolates where there is not a full level. Is it?

In addition, if we order Hysplit to calculate the trajectory at 2 m, and we know that the first level of WRF is at 8 m, what is Hysplit doing? Is it giving the trajectory at the first full level?

Many thanks in advance

In addition, if we order Hysplit to calculate the trajectory at 2 m, and we know that the first level of WRF is at 8 m, what is Hysplit doing? Is it giving the trajectory at the first full level?

Many thanks in advance