[ferret_users] Derivative and Integration Transformations units from grid

[Domingos Urbano <dfurbano@xxxxxxxxxxxxx>]

Dear all,

How do I certify myself about the grid units Ferret used during derivatives and integration?

I have a field of psi (stream function) in Sverdrups. After apply a central derivative (@ddc) to get U and V components the order of my field was 6 orders smaller.

Best,
Domingos.

yes? show grid psi
    GRID GTB1
 name       axis              # pts   start                end
 LON       LONGITUDE         1440mr   0.125E               0.125W
 LAT       LATITUDE           628 r   78.375S              78.375N
 normal    Z
 TIME      TIME               252 i   01-JAN-1988 00:00    01-DEC-2008 00:00
yes? 

-- 
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 Dr. Domingos Urbano
 Instituto Nacional de Pesquisas Espaciais - INPE
 Rodovia Presidente Dutra, km 40
 12630-000 - Cachoeira Paulista - SP - Brasil
 tel: 55(12)3186.8552 fax: 55(12)3101.2835
               www.inpe.br/ingles/
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