Can I given pressure as a condition of calculation to replace height?

[muyinglin]

Is there a method that can calculate a traj given 'lat','lon' and 'pressure'(rather rhan 'altitude')?

[mscross]

pysplit doesn't currently have this functionality since that would involve intensive interaction with the meteorology, and right now it just looks for filenames and passes what it finds to HYSPLIT.