[gradsusr] GrADS: Use of %
Mayes, Fred
Fred.Mayes at eia.gov
Tue Nov 19 13:50:49 EST 2013
The script URL provides the following example:
'open my_sst_dataset.ctl'
prompt 'Enter min and max latitudes: '
pull minlat maxlat
prompt 'Enter min and max longitudes: '
pull minlon maxlon
'set lat 'minlat%' '%maxlat
'set lon 'minlon' 'maxlon
'display sst'
Why is the "%" sign not used with the "set lon" command?
Fred M.
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Today's Topics:
1. Re: Eurocentric global map (Cara Duckworth)
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Message: 1
Date: Tue, 19 Nov 2013 17:00:20 +0000
From: Cara Duckworth <cara.duckworth at keble.ox.ac.uk>
Subject: Re: [gradsusr] Eurocentric global map
To: GrADS Users Forum <gradsusr at gradsusr.org>
Message-ID:
<A4E83836710D234FA6C4B8ECB9E60B1F3051C9 at MBX09.ad.oak.ox.ac.uk>
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Hi Jim
Thanks for your response. If I set lon to 180,540 the problem flips.
If set lon to 0 540, no values are attached to 360+. Is there a way of sorting this?
Best,
Cara
[cid:F62102ED-71DA-43A7-94A9-981A4C0488B5]
On 19 Nov 2013, at 16:22, "James T. Potemra" <jimp at hawaii.edu<mailto:jimp at hawaii.edu>>
wrote:
Cara:
Can you try 'set lon 180 540'? This should work if your longitude values are continuous.
Jim
On 11/19/13 5:44 AM, Cara Duckworth wrote:
Hi Chuck,
Thanks for your response. Yes, I just checked: lon = 0,360.
Is there a way that I can change this so that I can plot the global map from lon -180 to 180 (with Europe in the middle)?
When I plot it at lon=0,360, the map is fine but America is in the centre and I need Europe in the centre.
Best,
Cara
On 19 Nov 2013, at 15:15, Charles Seman - NOAA Federal <charles.seman at noaa.gov<mailto:charles.seman at noaa.gov>> wrote:
Cara,
Check to see if the variable you're trying to plot has been defined locally in GrADS and what the longitude range is for it. I was able to replicate the issue by defining a local GrADS variable for lon = (0,360) and then when displaying it for lon = (-180,180) the left half was missing.
Hope this helps,
Chuck
On 11/19/2013 09:33 AM, Cara Duckworth wrote:
Thanks Alan and Chris,
I'm still having troubles plotting the map.
When I use "set lon -180 180", one half of the plot is missing (see image attached)
Without this instruction the map is fine (with all data displayed), though Europe is not in the centre.
Any ideas as to what I have done wrong?
Best,
Cara
On 19 Nov 2013, at 13:25, Bill Reilly <bill_reilly at compuserve.com<mailto:bill_reilly at compuserve.com>
<mailto:bill_reilly at compuserve.com>> wrote:
Alan:
I think you mean:
set lon -180 180
--
Bill Reilly
www.passageweather.com<http://www.passageweather.com> <http://www.passageweather.com>
On 11/19/2013 1:30 PM, Alan Robock wrote:
Dear Cara
set lat -180 180
or if you don't want to split Alaska:
set lat -170 190
Alan Robock
Alan Robock, Distinguished Professor
Editor, Reviews of Geophysics
Director, Meteorology Undergraduate Program
Department of Environmental Sciences Phone: +1-848-932-5751
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On 11/19/2013 6:54 AM, Cara Duckworth wrote:
Dear users,
I need to plot a global map, which is centred on the Prime Meridian (i.e. a Eurocentric map).
Currently, the Prime Meridian is at either edge of my plot. How do I change this?
Thanks,
Cara
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