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Field Notes

<--2007-08-10 13:00:00 | 2007-08-22 00:00:00-->

Sherman Island: 2007-08-16 11:00:00 (DOY 228)
Author: Dennis Baldocchi
Others: Matteo Detto

Summary: Removed 2nd filter with new 2micron filter; replaced first filter; no Gelman present; replaced pump; took spectrometer readings; downloaded Sherman Island data.

Sherman Island - Methane Study

Date: 16 August 2007

Day: 228

Standard Time in: 900 Out: 1100

Who: MD & DB

Weather: clear sky and windy

Phenology: weed yellowish & green

Tasks

  1. check and download data at Sherman Island
  2. replace pump
  3. Take spectrometer

Check list

  1. Fence and gate power:
  2. Datalogger Solar Panel and Batteries:
  3. Reading from Gillsonic (H2O and CO2 should be in the range of 0 – 5 v.)

Time

Path/File name

D:\Data\SI07 .raw

mean

std

mean

std

w

0.36

Ts

24.9

u

3.17

H2O

3.39

v

5.7

CO2

1.65

CH4

1.806

  1. Methane Sensor (type Scroll Scroll 2)

Methane Hi-flow ppm

1.806

Cell Pressure – near 159

159.2

Cell Temperature

27.2

Mirror time

15.2

Sample rate

10 Hz

Methane low flow put back in high flow !

Pump status

Filter Status

Water traps

  1. If Swapping Li-7500 Analyzer. (Remove SN# ; install SN# )
  2. Check the fans of air temp. and relative humidity sensors
  3. Check MD-9 system connections
  4. Check CR23X with two multiplexers and sensor values
  5. Check levels of Radiation sensors, clear up surfaces.

Closed gate and set up fence.

Other Notes:

We removed 2nd filter , it was new 2micron filter, it seems to has too much constraint on the inlet flow.

We replace the first filter with and old one

There is no Gelman

Remember next time to:

Bring a new Gelman

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.