Field Notes

When: Date: July 5 2007 Day 186 Standard Time: 13:00

Where: Sherman Island - Methane Study

Who: MD & TED

Weather: clear sky, light wind

Phenology: tall weed, green and dry, still in flower

Tasks

1. check and download data at Sherman Island
2. Check auto power-on
3. download data from laser
4. Check old files
5. Take soil moisture
6. Change solar panels

Sherman Island Pasture Site

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

4. Methane Sensor

4. 1. Double Check

i. Sample rate: 10Hz?: OK

ii. Methane ppm Hi flow: OK

iii. Methane ppm, low flow (remember to put back in high flow:

iv. Pump status OK

v. Filter Status OK

vi. Check Water in tube:

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

Closed gate and set up fence.

Other Notes:

I’ve cleaned the radiometers and the sonic

Remember next time to:

Check if the diffuse par sensor algorithm is working OK (show the results to TED)