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Field Notes

<--2007-12-30 09:00:00 | 2008-01-06 09:00:00-->

Sherman Island: 2008-01-01 11:00:00 (DOY 1)
Author: Dennis Baldocchi
Others:

Summary: System was put into low flow mode. Soil probes checked and may need replacement.

Returned to site and checked everything out. Cleaned radiometers, checked flow and filters.

The system is running at 110 torr. The reading was about 2.2 ppb. I put the system in low flow mode and pressure changed to 159 torr and the reading was stilil about 2.2 ppb, so I am not seeing a bias with the low cell pressure.

Fog was just burning off when I got to site. Humidity 100%

The coarse grain filter was a bit damp. I tried to dry it off to improve flow, but that did not help.

Checking system

W: 0.24
U: -0.49
V: -6.2
T 7.3
Q: 1.97
C 1.851
CH4 2.2
All systems on scale

Met
P 102.8
Ta: 5.2
RH 101
Water p 0.17

Tsoil, sensors Tc1 at 2 and 8 cm, Tc2 at 16 and 32 and tc 16 at 32 cm are off scale. Not sure what saturated soil is doing. We may need to build and replace soil probes

Methane sensor Tcel 16.6, P 112 tor, 16.61 microsec, 10 Hz

Water table was about 70 cm by putting the ruler into the well and looking at where it is wet.

0 photos found

Graphs display:
7 sets found

No data found for SI_mp.
10 SI_met graphs found

Solar Radiation

Energy

Soil Temperatures Set 1

Soil Temperatures Set 2

Soil Temperatures Set 3

Soil Temperature at -16cm

Solar Radiation from CNR1

Sherman Island Rain

Sherman Well Level

Box Temperatures

Can't check SI_mixed
2 SI_mixed graphs found

Theta Probes

Sherman Island Air Temperatures

4 SI_flx graphs found

Sonic Wind

CH4 Concentrations

Sample Counts

LI7500 CO2 and H2O

No data found for SI_soilco2.
Can't check TWSI_mixed
Can't check SIMBTWEE_met

 
 

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This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.