When: Date: 12/22/2009 , Day: 356 , Watch Time: 9:00 .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: chilly, wet floor, very windy at Tonzi
Phenology: green grass, oak leaf-off, standing grass litters

Tonzi
Vaira:

Summary

• No power for the site under trees. Two batteries ~1.0 v. Batteries need to be changed.

1. measured midday leaf water potential: ~15 bar.
2. A-Ci curves for gray pine
3. checked and download data at Tower, Floor, and Vaira
4. calibrated Li-800 in the field because bump was dead.
5. collected samples of oak branches and pin needles
6. dendrometers
7. soil moisture
8. groundwater well:

Date	DOY	Location	Depth no the black thing (feet)
12/22/2009	356	Floor	31.36
		Tower	35.98
		roadside	39.12

Vaira_Grass Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.0 v; 19.1 amps; 3.0 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 YES!
2. Check the fans of air temp. and relative humidity sensors at Vaira. YES!
3. Check MD-9 system connections YES!
4. Check CR23X with two multiplexers

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: - v; - amps; - amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the
4. downloading data YES!
5. check the fans of air temp. and relative humidity sensors on the tower and the floor. YES!
6. Check rain gage, make sure not clogged. YES!
7. Check calibration cylinders;

CO₂ 1400 psig; flow 20 psi; 418.8 ppm.
N₂ 1200 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 YES!

before zero


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.)

(Looked OK. Forgot copying screen.)

1. downloading data YES!
2. Check MD-9 system connections YES!

CR23X3 – floor-Met



CR23X5 – soil CO₂ profile


CR23X6 – tower-Met

CR10X2 – floor-Met

1. Soil CO₂ profile: no power when I got there. I unplug and re-plug fuses, then the system back to work.

Reading from datalogger
No power for the site under trees. Two batteries ~1.0 v. Batteries need to be changed.
Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	1180	1	2cm (1%)	No power	1
4cm	960	2	4cm	No power	4
8cm	880	3	8cm	No power	2
16cm	800	4	16cm	No power	3

1. Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
12/22/2009	356
	SM
0-15	38.4	25.6	39.9	28.8	29.1	25.8	26.4	24.7	13.0
15-30	11.1	30.1	35.6	29.8	34.1	21.3	29.5	30.4	9.7
30-45	24.2	33.2	47.4	35.7	37.7	25.4	29.3	29.6	17.3
45-60	41.4	1.2	34.2	22.5	22.8	23.6	30.2	19.1	9.6
	A6D882B	A3D04E8	A6D72F5
0-15	31.1	27.6	16.8
15-30	31.6	26.5	30.7
30-45	38.8	33.5	32.7
45-60	33.1	41.7	5.6
vaira	57318a	7933dee
0-15	18.2	28.6
15-30	21.8	30.2
30-45	20.0	28.1
45-60	21.2	26.4

Tonzi
Dendrometer
Date	Day	Tag #	Reading (mm)
12/22/2009	356	72	6.9
		79	10.2
		102	14.5
		245	9.8
		250	20.5	(reset to 10.5 on May 7, 2009)
		1	17.9
		2	9.6
		3	15.5
		4	6.2
		5	11.4
		7	14.3	133
		8	14.9	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