# Before you start
- [Register](http://www2.mmm.ucar.edu/wrf/users/download/wrf-regist.php) as a WRFChem user.  
- Require knowledge of [Linux](https://ss64.com/bash/) (basics: bash shell, grep, cut, sed, sort, awk, cat, scp) / [FORTRAN](https://ourcodingclub.github.io/tutorials/fortran-intro/) (basics) / [Python](https://www.python.org/) / [high-performance computing](https://arcdocs.leeds.ac.uk/usage/batchjob.html#list-of-sge-options) (HPC, qsub) / [NCO](http://nco.sourceforge.net/) / [NCL](http://www.meteo.mcgill.ca/ncar/ngdoc/ng4.0/ug/ncl/ncloview.html).  
- Request account on your local HPC. For those at the University of Leeds visit [Advanced Research Computing (ARC) site](https://arcdocs.leeds.ac.uk/getting_started/request_hpc_acct.html).  
