Field Notes

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Sherman Island: 2007-09-07 11:30:00 (DOY 250)
Author: Dennis Baldocchi
Others: Matteo Detto and Kate

Summary: Power was lost on the 7th from 3am-5am and methane sensor did not restore; LI-corr 7500 power cable replaced; took soil moisture; data collected from laser & Sherman Island.

Sherman Island - Methane Study

Date: 7 September 2007

Day: 250

Standard Time in: 10:20 Out: 11:30

Who: DB, MD, kate

Weather: windy, fog-overcast

Phenology: pepper weed flowering and green up again, dead leaves dropped

Tasks

  1. check and download data at Sherman Island
  2. download data from laser
  3. Take soil moisture
  4. other: -------------

Check list

  1. Fence and gate power: OK
  2. Datalogger Solar Panel and Batteries: 13.8
  4. 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

-1.67

Ts

20.6

u

1.48

H2O

3.4

v

6.6

CO2

1.5

CH4

0.002

  1. Methane Sensor (type Scroll Scroll 2)

Methane Hi-flow ppm

1.830

Cell Pressure – near 159

158.07

Cell Temperature

27.3

Mirror time

14.8

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:

09-07-07 at 3 AM (approx) until 5 AM (approx) we lost power. The CO2 station automatic restored, methane sensor not.

Dennis swapped power supply cable of Li-corr 7500

Water table 4 ft + 9.5 tenth = 102.61 (double check next time)

Remember next time to:

0 photos found

Graphs display:
7 sets found

No data found for SI_mp.
10 SI_met graphs found

Explore the graph:Solar Radiation in a new window

Explore the graph:Energy in a new window

Explore the graph:Soil Temperatures Set 1 in a new window

Explore the graph:Soil Temperatures Set 2 in a new window

Explore the graph:Soil Temperatures Set 3 in a new window

Explore the graph:Soil Temperature at -16cm in a new window

Explore the graph:Solar Radiation from CNR1 in a new window

Explore the graph:Sherman Island Rain in a new window

Explore the graph:Sherman Well Level in a new window

Explore the graph:Box Temperatures in a new window

Can't check SI_mixed
2 SI_mixed graphs found

Explore the graph:Theta Probes in a new window

Explore the graph:Sherman Island Air Temperatures in a new window

4 SI_flx graphs found

Explore the graph:Sonic Wind in a new window

Explore the graph:CH4 Concentrations in a new window

Explore the graph:Sample Counts in a new window

Explore the graph:LI7500 CO2 and H2O in a new window

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