<s>
Global	O
Change	O
Research	O
Program	O
(	O
USGCRP	O
)	O
develops	O
and	O
curates	O
the	O
Global	B-Application
Change	I-Application
Information	I-Application
System	I-Application
(	O
GCIS	O
)	O
to	O
establish	O
"	O
data	O
interfaces	O
and	O
interoperable	O
repositories	O
of	O
climate	O
and	O
global	O
change	O
data	O
which	O
can	O
be	O
easily	O
and	O
efficiently	O
accessed	O
,	O
integrated	O
with	O
other	O
data	O
sets	O
,	O
maintained	O
and	O
expanded	O
over	O
time.	O
"	O
</s>
<s>
GCIS	O
has	O
developed	O
information	O
models	O
and	O
ontology	B-Language
to	O
represent	O
the	O
content	O
structure	O
of	O
the	O
NCA3	O
and	O
its	O
associated	O
provenance	O
information	O
and	O
has	O
been	O
extending	O
its	O
models	O
to	O
incorporate	O
more	O
global	O
change	O
information	O
.	O
</s>
<s>
Records	O
of	O
objects	O
and	O
relationships	O
within	O
the	O
GCIS	O
are	O
represented	O
in	O
a	O
database	O
for	O
the	O
Semantic	O
Web	O
,	O
which	O
can	O
be	O
queried	O
using	O
the	O
SPARQL	B-Language
language	O
.	O
</s>
<s>
Each	O
identifier	O
is	O
mapped	O
to	O
a	O
uniform	O
resource	O
identifier	O
(	O
URI	O
)	O
in	O
the	O
GCIS	O
namespace	O
,	O
allowing	O
use	O
of	O
those	O
identifiers	O
for	O
the	O
Semantic	O
Web	O
and	O
other	O
linked	B-Operating_System
data	I-Operating_System
systems	O
.	O
</s>
<s>
The	O
GCIS	O
Ontology	B-Language
promotes	O
representation	O
and	O
documentation	O
by	O
incorporating	O
the	O
World	O
Wide	O
Web	O
Consortium	O
(	O
W3C	O
)	O
’	O
s	O
recommendation	O
on	O
provenance	O
modeling	O
(	O
PROV	O
)	O
into	O
the	O
design	O
.	O
</s>
<s>
The	O
ontology	B-Language
uses	O
the	O
namespace	O
prefix	O
GCIS	O
.	O
</s>
<s>
A	O
conceptual	O
map	O
of	O
the	O
GCIS	O
Ontology	B-Language
version	O
1.2	O
is	O
accessible	O
on	O
the	O
Web	O
.	O
</s>
