Nesting

Discuss the nesting capability within the model itself and any problems you might have run into.

Nesting

Postby Jipson Johnson » Tue Feb 10, 2015 4:53 am

Please help ,
I want to know, how to find out the grid dimension for a three nested domain including parent domain also. Please explain how to find Grid dimensions,i_parent, j_parent, e_we points and e_sn points in detail by using the given information
Resolutions : d01- (27Km*27km)
d02-(9Km*9Km)
d03-(3Km*3Km)
Centre :13.5N , 79.2E
dx=27Km , dy= 27Km
Jipson Johnson
 
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Re: Nesting

Postby Phillip » Tue Feb 17, 2015 12:04 pm

Centre :13.5N , 79.2E

This is the centre of your Domain 1 (the one with dx=dy=27km). You have to chose e_we and e_sn accordingly, depending on the size you want.
i_parent and j_parent mark the lower left (southwestern) point of your nested domains in the parent domain. For your child domains (the nests) e_we and e_sn have to be a multiple of 3 plus 1 to fit onto the parent's grid. After that, experiment a bit to find a setup that looks good. You can quickly look at the output of geogrid using ncview.
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Re: Nesting

Postby Jipson Johnson » Fri Feb 20, 2015 1:50 am

Sir, how to findout the grid dimension?? Please explain this with required steps
thank you
Jipson Johnson
 
Posts: 24
Joined: Thu Jan 08, 2015 2:15 pm

Re: Nesting

Postby winash12 » Sat Feb 21, 2015 12:58 pm

Why not use the WRF Domain Wizard ?
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Re: Nesting

Postby Jipson Johnson » Sun Mar 15, 2015 3:43 am

Acually i dont know how to use that one.
If you dont mind please help me how to use WRF Domain Wizard.
Thank you
Jipson Johnson
 
Posts: 24
Joined: Thu Jan 08, 2015 2:15 pm


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