Field Notes

When: Date: 12/26/2004 , Day: 361 , Watch Time: 11:40am .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather mild, partially cloudy
Phenology: green grass

Tasks

1. check Flux systems
2. Spectrum measurements
3. soil moisture
4. leave samples: Vaira grass, Tonzi understory grass
5. regeneration

Tonzi_Tower Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.5 v; 0.0 amps; 4.2 amps.
3. Reading from Windows version of Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

   Time	14:07:50
   Path/File name	D:\T04_361.flx, D:\TW04611400.raw
   	mean	std		mean	std
   w	0.23	2.843	Ts	16.947	0.353
   u	-1.15	1.504	H2O	1.701	0.021
   v	3.09	3.126	CO2	1.759	0.017

4. Download data.
5. Check calibration cylinders;
   CO₂ 1700 psig; flow 10 psi.
   N₂ 500 psig; flow 10 psi.
6. close gate and set up fence.

Toniz_Floor Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 12.8 v; 16.0 amps; 2.9 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

   Time	13:27:40
   Path/File name	FL4_361.FLX
   	mean	std		mean	std
   w	0.43	0.284	Ts	24.007	0.287
   u	-0.88	0.604	H2O	1.767	0.062
   v	-0.78	0.763	CO2	1.87	0.009

4. Download data. (Alt_X to close Gillsonic.exe; close PC208W before copying.)
   !!! Don’t move Gillsonic & unnamed Met files in D:\Tonzi\. Only move the files with the extension of .10X or .23X.
5. Readings were OK from Gillsonic screen after downloading data and restarting the laptop.

   Time	13:42:23
   Path/File name	Fl4_361.flx
   	mean	std		mean	std
   w	0.24	0.351	Ts	23.921	0.165
   u	-3.64	1.065	H2O	1.726	0.034
   v	-1.16	0.523	CO2	1.883	0.059

6. No power on the fence of soil CO2 profile area
7. Close gate and set up fence.