When: Date: 9/7/2009 , Day: 250 , Watch Time: 5:00 .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: hot
Phenology: yellow grass, green oak leaves, see acorns, cows at Vaira

Tonzi
A bright moon	Oak acorns #92
Vaira:
A lot of cows

Summary

1. Pre-dawn leaf water potential: oak leaf= -30 bar; pin needle=-13 bar.
2. A-Ci curves for oak and gray pine
3. check and download data at Tower, Floor, and Vaira
4. swap Li-7500 at Tower, Vaira (Floor site was done on Aug. 27, 2009 with the two visitors: Catarina Meuna; Andrews Latimer)
5. collected samples of oak leaves and pin needles
6. dendrometers
7. soil moisture
8. groundwater well:

Date	DOY	Location	Depth from the black thing (feet)
9/7/2009	250	Floor	29.24
		Tower	34.03
		roadside	37.82

Vaira_Grass Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.5 v; 10.1 amps; 2.5 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
2. swap Li-7500: remove 42 ; install #35.
3. Check the fans of air temp. and relative humidity sensors at Vaira. YES!
4. Check MD-9 system connections YES!
5. Check CR23X with two multiplexers

Is Pressure Sensor working‌ Looks like.

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 range of 0 – 5 v.)

1. downloading data YES!
2. swap Li-7500: remove; install #976
3. check the fans of air temp. and relative humidity sensors on the tower and the floor. YES!
4. Check rain gage, make sure not clogged. YES!
5. Check calibration cylinders;

CO₂ 100 psig; flow 20 psi; 431.25 ppm.
N₂ 100 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 431.25ppm tank

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.)

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: working well.
2. Close gate and set up fence. YES!

tonzi		7931AFE			402165		574B4B	402FF3		574632	7A432E	7A3C6E		7A3B40		7A4AAA
9/7/2009		250
		SM
0-15		4.2			2.1		8.6	3.0		5.9	4.5	6.2		3.3		2.7
15-30		13.0			12.7		10.0	12.7		6.3	5.1	12.4		11.8		4.2
30-45		17.0			10.9		11.2	13.4		2.0	8.7	14.5		15.6		13.1
45-60		14.5			4.2		13.6	11.0		17.9	10.7	13.9		21.3		9.9
		A6D882B			A3D04E8		A6D72F5
0-15		5.9			4.2		1.8
15-30		7.5			6.3		11.8
30-45		15.4			15.9		12.0
45-60		16.2			18.5		3.6
vaira		57318a			7933dee
0-15		#DIV/0!			1.5
15-30		4.2			7.5
30-45		8.1			12.3
45-60		18.2			20.2
	Tonzi
	Dendrometer
	Date		Day	Tag #		Reading (mm)
	9/7/2009		250	72		4.0
				79		0.2			(reset to 6.0 today)
				102		9.8
				245		6.9
				250		14.8			(reset to 10.5 on May 7, 2009)
				1		17.6
				2		7.5
				3		12.5
				4		3.1
				5		11.9
				7		10.9			133
				8		14.2			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