Field Notes

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Sherman Island: 2007-07-12 11:00:00 (DOY 193)
Author: Dennis Baldocchi
Others: Matteo Detto

Summary: Problems with new solar panels and battery charging; one thermocouple was down; downloaded data at Sherman Island and from laser; took soil moisture.

Sherman Island - Methane Study

Date: 12 July 2007

Day: 193

Standard Time in: 9:00 Out: 11:00

Who: MD & DB

Weather: almost clear sky, windy

Phenology: some weed still in flower, getting dry

Tasks

  1. check and download data at Sherman Island
  2. Calibrate Laser
  3. download data from laser
  4. Take soil moisture

Check list

  1. Fence and gate power: OK
  2. Datalogger Solar Panel and Batteries: 20V !!!!!
  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

-0.7

Ts

20.2

u

3.36

H2O

3.3

v

4.1

CO2

1.7

CH4

1.85

  1. Methane Sensor

Methane Hi-flow ppm

1.847

Cell Pressure – near 159

157.3

Cell Temperature

27.7

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:

Problems with the new solar panels and battery charging, I cannot see the charge regulator.

Water table depth (from the top of the tube) 3ft and 3 tenth = 52.32

One thermocouple is not working - TC1_2cm

Remember next time to:

USB extension cable for Laser computer downloading data

Methane Sensor Calibration

Date: 12 July 2007

Day: 193

Who: MD & DB

Refernce gas: 1976 ppb


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