<s>
METRIC	B-Application
(	O
Mapping	O
EvapoTranspiration	O
at	O
high	O
Resolution	O
with	O
Internalized	O
Calibration	O
)	O
is	O
a	O
computer	B-Application
model	I-Application
developed	O
by	O
the	O
University	O
of	O
Idaho	O
,	O
that	O
uses	O
Landsat	O
satellite	O
data	O
to	O
compute	O
and	O
map	O
evapotranspiration	O
(	O
ET	O
)	O
.	O
</s>
<s>
METRIC	B-Application
calculates	O
ET	O
as	O
a	O
residual	O
of	O
the	O
surface	O
energy	O
balance	O
,	O
where	O
ET	O
is	O
estimated	O
by	O
keeping	O
account	O
of	O
total	O
net	O
short	O
wave	O
and	O
long	O
wave	O
radiation	O
at	O
the	O
vegetation	O
or	O
soil	O
surface	O
,	O
the	O
amount	O
of	O
heat	O
conducted	O
into	O
soil	O
,	O
and	O
the	O
amount	O
of	O
heat	O
convected	O
into	O
the	O
air	O
above	O
the	O
surface	O
.	O
</s>
<s>
METRIC	B-Application
expresses	O
near-surface	O
temperature	O
gradients	O
used	O
in	O
heat	O
convection	O
as	O
indexed	O
functions	O
of	O
radiometric	O
surface	O
temperature	O
,	O
thereby	O
eliminating	O
the	O
need	O
for	O
absolutely	O
accurate	O
surface	O
temperature	O
and	O
the	O
need	O
for	O
air-temperature	O
measurements	O
.	O
</s>
<s>
METRIC	B-Application
algorithms	O
are	O
designed	O
for	O
relatively	O
routine	O
application	O
by	O
trained	O
engineers	O
and	O
other	O
technical	O
professionals	O
who	O
possess	O
a	O
familiarity	O
with	O
energy	O
balance	O
and	O
basic	O
radiation	O
physics	O
.	O
</s>
<s>
The	O
primary	O
inputs	O
for	O
the	O
model	O
are	O
short-wave	O
and	O
long-wave	O
thermal	O
images	O
from	O
a	O
satellite	O
e.g.	O
,	O
Landsat	O
and	O
MODIS	B-Application
,	O
a	O
digital	B-Application
elevation	I-Application
model	I-Application
,	O
and	O
ground-based	O
weather	O
data	O
measured	O
within	O
or	O
near	O
the	O
area	O
of	O
interest	O
.	O
</s>
<s>
ET	O
“	O
maps	O
”	O
i.e.	O
,	O
images	O
via	O
METRIC	B-Application
provide	O
the	O
means	O
to	O
quantify	O
ET	O
on	O
a	O
field-by-field	O
basis	O
in	O
terms	O
of	O
both	O
the	O
rate	O
and	O
spatial	O
distribution	O
.	O
</s>
<s>
In	O
the	O
decade	O
since	O
Idaho	O
introduced	O
METRIC	B-Application
,	O
it	O
has	O
been	O
adopted	O
for	O
use	O
in	O
Montana	O
,	O
California	O
,	O
New	O
Mexico	O
,	O
Utah	O
,	O
Wyoming	O
,	O
Texas	O
,	O
Nebraska	O
,	O
Colorado	O
,	O
Nevada	O
,	O
and	O
Oregon	O
.	O
</s>
