<s>
Titan2d-mod	B-Application
(	O
titan	O
3.1.1	O
,	O
2016	O
)	O
is	O
a	O
free	O
open	O
source	O
code	O
to	O
simulate	O
dry	O
granular	O
avalanche	O
flows	O
over	O
natural	O
terrain	O
,	O
modified	O
from	O
an	O
early	O
version	O
(	O
titan	O
3.0.0	O
,	O
2011	O
)	O
of	O
TITAN2D	B-Application
code	O
.	O
</s>
<s>
The	O
code	O
structures	O
and	O
usage	O
are	O
the	O
same	O
as	O
earlier	O
TITAN2D	B-Application
versions	O
(	O
see	O
user	O
's	O
manual	O
)	O
,	O
but	O
some	O
bugs	O
and	O
errors	O
occurring	O
in	O
titan	O
3.0.0	O
are	O
corrected	O
,	O
and	O
stopping	O
criteria	O
are	O
added	O
.	O
</s>
