Hi,NCL So grateful for your reply! Since the data file in radar_2.ncl is not avilable,how about radar_1.ncl?Could you please send "dz.nc" with your reply email? That'd be a lot of help. Cheers Smiths -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20200729/c61ed72a/attachment.html>