is it obvious difference betwwen 3 nested levels and 4 ?

Nesting issues in WPS

is it obvious difference betwwen 3 nested levels and 4 ?

Postby lgtq » Tue Apr 30, 2013 10:18 am

in a real case, i found that the result ( an aerosol species concentration) weren't different between applying 3 levels nesting and 4 levels nesting.
the inner grid spacing i set is 3.3km for 3 levels nesting.
the inner grid spacing i set is 1.1km for 4 levels nesting. but in this case, it spend more time consumption than last one.

but it is just one location.

i don't know in which case, the 4 levels nesting will much closer to the true (observation) than same case in 3 levels nesting.
lgtq
 
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