<s>
The	O
Goddard	B-Application
Earth	I-Application
Observing	I-Application
System	I-Application
(	O
GEOS	O
)	O
is	O
an	O
integrated	O
Earth	O
system	O
model	O
and	O
data	O
assimilation	O
system	O
developed	O
at	O
the	O
Global	O
Modeling	O
and	O
Assimilation	O
Office	O
(	O
GMAO	O
)	O
at	O
NASA	O
's	O
Goddard	O
Space	O
Flight	O
Center	O
.	O
</s>
<s>
The	O
components	O
of	O
the	O
model	O
use	O
the	O
Earth	B-Application
System	I-Application
Modeling	I-Application
Framework	I-Application
(	O
ESMF	B-Application
)	O
,	O
enabling	O
them	O
to	O
be	O
connected	O
in	O
a	O
flexible	O
manner	O
and	O
supporting	O
the	O
investigation	O
of	O
many	O
different	O
aspects	O
of	O
Earth	O
science	O
,	O
in	O
particular	O
questions	O
related	O
to	O
coupled	O
processes	O
involving	O
the	O
atmosphere	O
,	O
ocean	O
,	O
and/or	O
land	O
.	O
</s>
