<s>
For	O
example	O
,	O
the	O
Weather	B-Application
Research	I-Application
and	I-Application
Forecasting	I-Application
Model	I-Application
uses	O
the	O
Arakawa	O
Staggered	O
C-Grid	O
in	O
its	O
atmospheric	O
calculations	O
when	O
using	O
the	O
ARW	O
core	O
.	O
</s>
<s>
The	O
five	O
Arakawa	B-Application
grids	I-Application
(	O
A-E	O
)	O
were	O
first	O
introduced	O
in	O
Arakawa	O
and	O
Lamb	O
1977	O
.	O
</s>
