Hi all Does anyone has the script to share of potential vorticity computed using the data from NCEP/NCAR reanalysis in the isentropic surface. ? thanks in advance for any help. H. Varikoden -------------- next part -------------- An HTML attachment was scrubbed... URL: http://gradsusr.org/pipermail/gradsusr/attachments/20080615/b0ea27bb/attachment.html