13.
Groundwater
recharge
in
wet
seasons/snow
melt,
Posi6ve
water
balance
F4
11/5/13 TMS – Seminar 2013
14.
For
gravimetric
lysimeters:
Groundwater
=
Zero
Poten6al
Lysim.
Boaom
=
Zero
Poten6al
F5
11/5/13 TMS – Seminar 2013
15.
Capillar
flux
Dry
seasons
/
Nega6ve
water
balance
Lysimeter
gecng
to
dry
Due
to
missing
connec6on
to
groundwater.
Fm
6
11/5/13 TMS – Seminar 2013
16. Fm
7
Fluxes
are
poten6al
driven.
Field
matrix
poten6al
needs
to
be
lysimeter
matrix
poten6al.
We
need
to
measure
field
condi6on
and
need
to
transmia
it
into
lysimeters
11/5/13 TMS – Seminar 2013
17.
We
need
to
control
the
lower
boundary
condi6on
to
reach
true
hydraulic
field
situa6ons
in
lysimeters
F8
11/5/13 TMS – Seminar 2013
30. 11/5/13
• 3rd
genera6on
lysimeters
with
selectable
heights
• Complete
system
is
expendable
up
to
4
lysimeters
SMART FIELD LYSIMETERS
TMS – Seminar 2013
31. SMART FIELD LYSIMETERS
11/5/13
• True
field
condi@on
-‐ True
Water
flux
&
boundaries
-‐ True
Temperature
profile
-‐ Field
egeta6on
• Measures
precisely
-‐ Field
drainage
-‐ Precipita6on
-‐ Evapotranspira6on
• Addi@onal
Data
for
-‐ 3
x
Matrix
poten6al
-‐ 3
x
Vol.
Water
content
-‐ 3
x
El.
Conduc6vity
-‐ 3
x
Temperature
-‐ Webserver
data
download
TMS – Seminar 2013
