[ferret_users] How get NetCDF attribute values for mapping sst with Ferret

[Jacques Stum <jacques.stum@xxxxxx>]

Hello Ferret users,

I'm a new Ferret user. I'm a little bit lost in the documentation. My 
problem is the following :
I have a NetCdf variable (sea_surface_temperature) which has two attributes:
sea_surface_temperature:min
sea_surface_temperature:max
which give the real physical min and max values of sst for my particular 
file (e.g., min=275K, max=300K)

I would like to map my sst variable every 1K between these min and max 
values :
shade/levels=(sea_surface_temperature:min,sea_surface_temperature:max,1) 
"sea_surface_temperature"

My question is : how within my Ferret script do I get the values of  
sea_surface_temperature:min and sea_surface_temperature:max, and how do 
I specify the shade/levels instruction ?

Thank you for your help,

Jacques

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JACQUES STUM                                  	     ~~	  E-mail	 :  jstum@xxxxxx	
Collecte Localisation Satellite,
8-10 rue Hermès,                                 	     ~~	  Phone   :  33 5 61 39 48 12
Parc Technologique du Canal,
31526 Ramonville Saint-Agne, France	     ~~    	  Fax	 :  33 5 61 39 37 82
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