<s>
Doppler	B-Algorithm
on	I-Algorithm
Wheels	I-Algorithm
(	O
or	O
DOW	O
)	O
is	O
a	O
fleet	O
of	O
X-band	B-Algorithm
and	O
C-band	B-Algorithm
radar	B-Application
trucks	O
managed	O
by	O
the	O
University	O
of	O
Illinois	O
Urbana-Champaign	O
and	O
previously	O
maintained	O
by	O
the	O
Center	O
for	O
Severe	O
Weather	O
Research	O
(	O
CSWR	O
)	O
in	O
Boulder	O
,	O
Colorado	O
,	O
led	O
by	O
principal	O
investigator	O
(	O
PI	O
)	O
Joshua	O
Wurman	O
,	O
with	O
the	O
funding	O
largely	O
provided	O
by	O
the	O
National	O
Science	O
Foundation	O
(	O
NSF	O
)	O
.	O
</s>
<s>
Two	O
of	O
the	O
three	O
,	O
DOWs	O
6	O
and	O
7	O
,	O
are	O
dual-polarization	O
,	O
dual-frequency	O
,	O
quick-scanning	O
Doppler	B-Application
weather	I-Application
radars	I-Application
.	O
</s>
<s>
These	O
radars	O
have	O
the	O
highest	O
transmitting	O
power	O
of	O
any	O
mobile	O
X-band	B-Algorithm
system	O
with	O
dual	O
250kW	O
transmitters	O
.	O
</s>
<s>
The	O
RSDOW	O
can	O
also	O
be	O
configured	O
into	O
a	O
single	O
beam	O
,	O
single	O
frequency	O
,	O
single-polarization	O
radar	B-Application
(	O
fielded	O
as	O
DOW	O
8	O
)	O
.	O
</s>
<s>
Several	O
instrumented	O
mobile	O
mesonet	O
pickup	O
trucks	O
host	O
in	O
situ	O
weather	O
instrumentation	O
on	O
masts	O
to	O
complement	O
the	O
remote	B-Application
sensing	I-Application
radars	O
.	O
</s>
<s>
These	O
mobile	O
mesonets	O
also	O
carry	O
approximately	O
twenty	O
instrumented	O
"	O
PODS	O
"	O
,	O
which	O
are	O
ruggedized	O
quickly	O
deployable	O
weather	O
stations	O
designed	O
to	O
survive	O
inside	O
tornadoes	B-Language
,	O
tropical	O
cyclones	O
,	O
and	O
other	O
adverse	O
environments	O
.	O
</s>
<s>
The	O
DOW	O
fleet	O
has	O
collected	O
data	O
in	O
200	O
tornadoes	B-Language
and	O
inside	O
the	O
cores	O
of	O
thirteen	O
hurricanes	O
.	O
</s>
<s>
In	O
late	O
2018	O
,	O
the	O
DOW	O
Facility	O
debuted	O
a	O
new	O
quickly-deployable	O
C-band	B-Algorithm
radar	B-Application
(	O
or	O
COW	O
)	O
featuring	O
a	O
larger	O
antenna	O
and	O
5cm	O
wavelength	O
(	O
as	O
compared	O
to	O
the	O
3cm	O
wavelength	O
of	O
the	O
DOWs	O
)	O
.	O
</s>
<s>
Due	O
to	O
the	O
larger	O
size	O
of	O
the	O
antenna	O
,	O
the	O
truck	O
features	O
a	O
built-in	O
crane	O
allowing	O
for	O
the	O
radar	B-Application
to	O
be	O
assembled	O
on	O
site	O
.	O
</s>
<s>
DOW	O
data	O
revealed	O
the	O
most	O
intense	O
winds	O
ever	O
recorded	O
(	O
Bridge	O
Creek	O
tornado	B-Language
,	O
3	O
May	O
1999	O
)	O
,	O
and	O
the	O
largest	O
tornadic	O
circulation	O
ever	O
documented	O
(	O
also	O
3	O
May	O
1999	O
in	O
Mulhall	O
,	O
OK	O
)	O
,	O
and	O
made	O
the	O
first	O
3D	O
maps	O
of	O
tornado	B-Language
winds	O
and	O
sub-tornadic	O
vortex	O
winds	O
,	O
and	O
documented	O
intense	O
vortices	O
within	O
lake-effect	O
snow	O
bands	O
.	O
</s>
<s>
The	O
DOW	O
fleet	O
,	O
PODS	O
,	O
and	O
mobile	O
mesonets	O
have	O
been	O
featured	O
on	O
television	O
,	O
including	O
Discovery	O
Channel	O
's	O
reality	O
series	O
Storm	O
Chasers	O
,	O
National	O
Geographic	O
Channel	O
's	O
specials	O
Tornado	B-Language
Intercept	O
and	O
The	O
True	O
Face	O
of	O
Hurricanes	O
,	O
and	O
PBS	O
's	O
Nova	O
episode	O
"	O
The	O
Hunt	O
for	O
the	O
Supertwister	O
,	O
"	O
and	O
others	O
.	O
</s>
<s>
The	O
first	O
is	O
the	O
creation	O
of	O
an	O
S-band	B-Algorithm
on	O
Wheels	O
Network	O
(	O
SOWNET	O
)	O
featuring	O
four	O
quickly-deployable	O
S-band	B-Algorithm
radars	O
with	O
10cm	O
wavelengths	O
capable	O
of	O
seeing	O
through	O
intense	O
precipitation	O
.	O
</s>
<s>
These	O
smaller	O
truck-mounted	O
radars	O
would	O
replace	O
a	O
single	O
large	O
S-band	B-Algorithm
radar	B-Application
,	O
allowing	O
for	O
dual-Doppler	O
analyses	O
and	O
quicker	O
deployment	O
times	O
.	O
</s>
<s>
The	O
second	O
planned	O
project	O
is	O
the	O
Bistatic	B-Algorithm
Adaptable	O
Radar	B-Application
Network	O
(	O
BARN	O
)	O
which	O
will	O
be	O
integrated	O
with	O
existing	O
DOWs	O
and	O
the	O
COW	O
to	O
provide	O
high	O
resolution	O
wind	O
vector	O
observations	O
without	O
the	O
need	O
for	O
multiple	O
,	O
expensive	O
transmitters	O
.	O
</s>
<s>
These	O
bistatic	B-Algorithm
receivers	O
will	O
consist	O
of	O
small	O
antennas	O
that	O
can	O
be	O
deployed	O
like	O
Pods	O
or	O
mounted	O
onto	O
a	O
Mobile	O
Mesonet	O
or	O
similar	O
vehicle	O
.	O
</s>
