[gradsusr] Eurocentric global map

Cara Duckworth cara.duckworth at keble.ox.ac.uk
Tue Nov 19 10:44:37 EST 2013


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> 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>> wrote:
>> 
>>> Alan:
>>> 
>>> I think you mean:
>>> 
>>> set lon -180 180
>>> 
>>> --
>>> 
>>> Bill Reilly
>>> 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
>>>> Rutgers University                                 Fax: +1-732-932-8644
>>>> 14 College Farm Road                  E-mail:robock at envsci.rutgers.edu
>>>> New Brunswick, NJ 08901-8551  USAhttp://envsci.rutgers.edu/~robock
>>>>                                          http://twitter.com/AlanRobock
>>>> Watch my 18 min TEDx talk athttp://www.youtube.com/watch?v=qsrEk1oZ-54
>>>> 
>>>> 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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>>>> 
>>>> 
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>> 
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> 
> -- 
> 
> Please note that Charles.Seman at noaa.gov should be considered my NOAA
> email address, not cjs at gfdl.noaa.gov.
> 
> ********************************************************************
>  Charles Seman                                Charles.Seman at noaa.gov
>  U.S. Department of Commerce / NOAA / OAR
>  Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
>  201 Forrestal Road                              fax: (609) 987-5063
>  Princeton, NJ  08540-6649            http://www.gfdl.noaa.gov/~cjs/
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> 
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