Creating a Grid from multiple radar objects/files at different tilts

[Ben Price]

Hey everyone,

I'm currently trying to get a PyDDA (which uses Py-ART as its base, ingesting radar Grid objects) running and it requires data in the vertical to work correctly (I believe this is the case, correct me if I'm wrong). The problem is, the data I'm using are from mobile radars (RaXPol and NOXP) in which the data is split up into separate PPI files for each tilt/elevation angle (or sweeps). So, it'll have a file for 0.0 elevation/tilt, 1.5 elevation/tilt, 2.0 elevation/tilt, and so on. I'm wondering if there is a way in Py-ART to combine these multiple files into one Radar/Grid object? I know that join_radars exists, but if I'm not wrong, that can only combine two radars, and only does so in the horizontal and not the vertical? If there is no way to do this in Py-ART, does anyone know of a way to do this in any other programs (like LROSE/Radx or of the like?)

Thanks,

Ben Price

[sherma...@gmail.com]

Hi Ben,

join_radars I believe should still work if the radars are joined in order, I believe the function is just appending the radar_sweep_indices etc on top of one another. So possible looping through a radars with sorted fixed_angles and joining each to the next might work. We've also discuss doing this for one of our other packages for some datasets with similar sweep different files, but haven't gotten that far yet.

Zach S.

[sherma...@gmail.com]

Ben,

Scott put together a notebook recently joining radar and sorting files here:
https://github.com/scollis/notebooks/blob/master/concatinate_file%20(2).ipynb

Hope this helps!

Cheers,

Zach S.