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Re: [ferret_users] geostropic currents



Dear Mahesh,
  I dont know why ferret takes a different grid. Had you tried with yy = y[g=grid_0001]
regards
nuncio

Nuncio Murukesh, Ph.D
Research Scientist.
National Centre for Antarctic and Ocean Research
Headland Sada, Vasco Da Gama
Goa, 403804
India.
Ph: Cell-91 9890357423
    off- 91 832 2525428

----- Original Message -----
From: "Mahesh Shinde" <mashinde05@xxxxxxxxx>
To: "ferret users" <ferret_users@xxxxxxxx>
Sent: Tuesday, November 8, 2011 4:26:11 PM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi
Subject: [ferret_users] geostropic currents

Dear friends, 

I am computing geostropic currents using Aviso altimetry. it plots the currents, please see the figure below.... 
here I am also attaching the script ..... 

the ferret script ... 

can data/all 
can viewport 
use dt_ref_med_merged_madt_h_20090610_20090610_20100602.nc !(aviso ssh) 
let g=9.8 
let pi=3.141 
let omega = 0.729e-4 
let yy = y[g=GLZ2] !( please note that this 'GLZ2' is coming from ferret 
let f=2.0*omega*sin(yy*pi/180.0) 
let ssh=GRID_0001 
let ug = -1.0*(g/f)*ssh[y=@ddc] !(centered difference scheme is used) 
let vg = (g/f)*ssh[x=@ddc]!(centered difference scheme is used) 
!plot geostropic winds 
vec/l=1/xskip=4/yskip=4/nolab ug,vg 
go land 

!------------------------------------------------------------------------------------------------------------- 

please tell why currents are looks like..... 


thanks 

regards 
mahesh 

-- 

---------------------------------------------------------------------------------------------------------------------- 
(Permanent Affiliaiton) Mr. Mahesh Shinde 
Climate and Global Modeling Division, 
Indian Institute of Tropical Meteorology, 
NCL POST, Dr. Homi Bhabha Road, 
Pashan, Pune-411008, INDIA 
email: samurai@xxxxxxxxxxxxxx 
cell: +91-9822050959 
skype : mashinde2k9 
---------------------------------------------------------------------------------------------------------------------- 



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