When: Date: 4/2/2010 , Day: 92 , Watch Time: 6:00 am .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: cloudy, slight wind, a lot of dews, started raining at noon.
Phenology: green grass, green oak leaves expanding

Tonzi

Summary

1. Pre-dawn leaf water potential: oak leaf= -3.4 bar; pin needle=-6.1 bar.
2. Power showed “OFF” at Vaira.
3. calibrated Li-800 in the field.
4. collected samples of oak leaves and pin needles
5. dendrometers
6. soil moisture
7. groundwater well:

Date	DOY	Location	Depth from NO black thing (feet)
4/2/2010	92	Floor	23.30
		Tower	27.62
		roadside	31.75

Vaira_Grass Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.5 v; 0.0 amps; OFF amps.

NO POWER! NO RUNNING!

1. Check levels of Radiation sensors, clear up surfaces. YES!
2. Check rain gage, make sure not clogged. YES!
3. Closed gate and set up fence. YES!

Tonzi_Tower Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 12.7 v; 0.0 amps; 3.7 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

1. downloading data NO!
2. check the fans of air temp. and relative humidity sensors on the tower and the floor. NO!
3. Check rain gage, make sure not clogged. YES!
4. Check calibration cylinders;

CO₂ 700 psig; flow 30 psi; 418.8 ppm.
N₂ 300 psig; flow 20 psi.
Manually calibrate Li-800. Following Ted’s instruction: H:\IoneSavanna_2004\Tower_2004\CO2Profile\LI800_Calibration_Procedure_2Nov04.txt
Is the pump running‌ Pump wasn’t working. Click it and it worked.

before zero 4.6 ppm
after zero

before span

after span

1. close gate and set up fence. YES!

Toniz_Floor Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 12.3 v; 1.5 amps; 1.9 amps. (about 7:00 am local time)
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

LOOKS OK, BUT THE POWER DIDN’T ALLOW ME TO SAVE “PRINT SCREEN” .

1. downloading data NO!
2. Check MD-9 system connections NO!
3. Soil CO₂ profile: no power when I got there. I unplug and re-plug fuses, then the system back to work.

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	1320	1	2cm (1%)	3270	1
4cm	1560	2	4cm	3700	4
8cm	2280	3	8cm	3600	2
16cm	1210	4	16cm	8420	3

1. Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
4/2/2010	92
	sm
0-15	39.6	17.3	39.3	29.4	32.3	26.7	23.2	21.4	16.8
15-30	37.9	30.1	37.4	34.1	34.7	24.9	26.1	29.5	16.4
30-45	39.9	41.9	42.1	37.4	43.5	27.6	26.5	31.0	32.4
45-60	38.5	55.1	62.9	49.7	42.0	32.8	36.8	46.6	28.2
	A6D882B	A3D04E8	A6D72F5
0-15	26.7	17.9	19.1
15-30	25.2	13.6	31.9
30-45	33.8	29.3	40.7
45-60	40.8	45.4	42.3
vaira	57318a	7933dee
0-15	21.5	12.7
15-30	23.7	24.0
30-45	19.0	26.5
45-60	35.7	34.0

Tonzi
Dendrometer
Date	Day	Tag #	Reading (mm)
4/2/2010	92	72	7.5
		79	10.9
		102	X
		245	10.1
		250	21	(reset to 10.5 on May 7, 2009)
		1	18.1
		2	9.9
		3	16.2
		4	7.4
		5	10.5
		7	14.9	133
		8	16.6	11828
		71	X
		77	X	‌
		78	X	‌
		248	X	broken
		255	X	‌
		‌252‌	X	‌
		6	X

Notes: “X” means not working any more.
Dendrometers installed by Gretchen group