k
is effective diffusivity
l
is strain rate
L
fil
=
Ö
(
k
/
l
)
Typical values:
k
=5m
2
s
-1
,
l
=5x10
-6
s
-1
L
fil
~1km
Converges in ~ 1-2 days
m
/
l
<2.5:
as exponentially growing/inert tracer
m
/
l
>2.5:
width dependent on growth rate
larger than for exponential growth
L
fil
~
Ö
(
k
m
/
l
2
)