<s>
The	O
raindrop	B-Algorithm
size	I-Algorithm
distribution	I-Algorithm
(	O
DSD	O
)	O
,	O
or	O
granulometry	O
of	O
rain	O
,	O
is	O
the	O
distribution	O
of	O
the	O
number	O
of	O
raindrops	O
according	O
to	O
their	O
diameter	O
(	O
D	O
)	O
.	O
</s>
<s>
The	O
most	O
well-known	O
study	O
about	O
raindrop	B-Algorithm
size	I-Algorithm
distribution	I-Algorithm
is	O
from	O
Marshall	O
and	O
Palmer	O
done	O
at	O
McGill	O
University	O
in	O
Montréal	O
in	O
1948	O
.	O
</s>
<s>
With	O
the	O
same	O
notation	O
as	O
before	O
,	O
we	O
have	O
for	O
the	O
drizzle	B-Application
the	O
distribution	O
of	O
Ulbrich	O
:	O
</s>
<s>
Where	O
is	O
the	O
liquid	O
water	O
content	O
,	O
water	O
density	O
,	O
and	O
0.2	O
is	O
an	O
average	O
value	O
of	O
the	O
diameter	O
in	O
drizzle	B-Application
.	O
</s>
