[gradsusr] Mixing ratio gradient

[Morwakoma Matabane]

Might be the grads version you use. I use grads-2.0.a8.oga.1 and it is compatible to the data type downloaded.

-----Original Message-----
From: gradsusr-bounces at gradsusr.org [mailto:gradsusr-bounces at gradsusr.org] On Behalf Of M.Mahakur
Sent: Wednesday, February 06, 2013 2:44 PM
To: GrADS Users Forum
Subject: Re: [gradsusr] Mixing ratio gradient

I donot why I am not able to get data from the monsoondata.org DAP/DODS site?? I gives me error:

ga->sdfopen http://monsoondata.org:9090/dods/gfsens/gfsens.2013020200
Error: nc_open failed to open file http://monsoondata.org:9090/dods/gfsens/gfsens.2013020200
NetCDF: I/O failure
gadsdf: Couldn't ingest SDF metadata.

Is it ok for you?

Regards,

----- Original Message -----
From: Morwakoma Matabane <Morwakoma.Matabane at weathersa.co.za>
To: 'gradsusr at gradsusr.org' <gradsusr at gradsusr.org>
Sent: Wed, 06 Feb 2013 17:33:12 +0530 (IST)
Subject: [gradsusr] Mixing ratio gradient

Attached is the entire script and the output. The output "CONSTANT FIELD. VALUE -0".


'reinit'
'sdfopen http://monsoondata.org:9090/dods/gfsens/gfsens.2013020200'
'set lat -60 0'
'set lon -30 60'

'set z 3'

'set gxout shaded'
'define t=t+273'

'define es1=611*exp((2.5e6/461)*((1/t(z+1))-(1/273)))'
'define qs1=0.622*es1/(lev-es1)'

'define es2=611*exp((2.5e6/461)*((1/t(z-1))-(1/273)))'
'define qs2=0.622*es2/(lev-es2)'


'define dq=(qs1-qs2)/(lev(z+1)-lev(z-1))'

'd dq'

'cbarn 1.0 0 5.5 0.3'
'printim AA.gif gif -x1400 -y1200 white'
'quit'



Help highly appreciated.



Regards

Morwakoma

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