[gradsusr] help

[Abdolreza Kashki]

Dear all
Hi,
How can I calculate zonal -mean zonal wind anomaly(propagation for polar vortex) at 500hpa for northern hemisphere in Grads?
Best Regards
kashki

Abdolreza Kashki 

Ph.D. Student of Climatology

Department of Physical Geography

Faculty of Planing & Geography Science 

University of Isfahan  

Isfahan, Iran

Postcode:81746-73441

Tel:+98(311)7933119

Fax:+98(311)7932257

Cell:+989151731453
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