<s>
The	O
National	B-Application
Unified	I-Application
Operational	I-Application
Prediction	I-Application
Capability	I-Application
(	O
NUOPC	O
)	O
is	O
a	O
collaboration	O
of	O
modeling	O
centers	O
.	O
</s>
<s>
The	O
group	O
is	O
currently	O
developing	O
a	O
new	O
ensemble	B-Application
forecasting	I-Application
system	O
for	O
operational	O
numerical	B-General_Concept
weather	I-General_Concept
prediction	I-General_Concept
.	O
</s>
<s>
The	O
centers	O
are	O
using	O
common	B-Application
modeling	I-Application
infrastructure	I-Application
in	O
the	O
form	O
of	O
the	O
ESMF	B-Application
software	B-Architecture
framework	I-Architecture
to	O
increase	O
the	O
interoperability	O
of	O
software	O
components	O
provided	O
by	O
different	O
sources	O
.	O
</s>
