When: Date: 5/28/2010 , Day: 148 , Watch Time: 5:10 am .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: partially cloudy
Phenology: yellow flowers (HYGL), green oak leaves

Tonzi
Vaira

Summary

1. Pre-dawn leaf water potential: oak leaf= -5 bar; pin needle=-6 bar.
2. A-Ci curves for oak and gray pine
3. check and download data at Tower, Floor, and Vaira
4. calibrate Li-800 in the field
5. collected samples of grasses, oak leaves and pin needles
6. dendrometers
7. soil moisture
8. groundwater well:

Date	DOY	Location	Depth from the black thing (feet)
5/28/2010	148	Floor	20.41
		Tower	24.31
		roadside	29.48

Vaira_Grass Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: ok v; ok amps; ok 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

I click rain gage several times to test whether it is functioning.

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: ok v; ok amps; ok 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 on the tower and the floor. YES!
3. Check rain gage, make sure not clogged. YES!
4. Check calibration cylinders;

CO₂ 500 psig; flow 20 psi; 418.8 ppm.
N₂ 2000 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.

After zero


after span [CO2]=418.8ppm

1. close gate and set up fence. YES!

Toniz_Floor Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: ok v; ok amps; ok 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 MD-9 system connections YES!

CR23X3 – floor-Met



CR23X5 – soil CO₂ profile


CR23X6 – tower-Met

CR10X2 – floor-Met

1. Soil CO₂ profile:

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	1030	1	2cm (1%)	2940	1
4cm	1500	2	4cm	3740	4
8cm	2450	3	8cm	3460	2
16cm	2440	4	16cm	7720	3

1. Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
5/28/2010	148
	sm
0-15	22.3	13.2	22.0	15.9	18.5	15.0	21.4	16.8	10.0
15-30	17.0	22.2	23.4	17.9	23.1	13.0	25.2	19.7	7.2
30-45	23.7	27.6	31.0	21.2	32.4	15.1	26.2	22.6	21.2
45-60	25.1	23.1	56.0	38.2	35.4	18.2	23.4	34.2	17.3
	A6D882B	A3D04E8	A6D72F5
0-15	22.3	15.3	17.6
15-30	17.0	4.8	21.9
30-45	23.5	21.8	23.5
45-60	31.9	32.5	39.4
vaira	57318a	7933dee
0-15	12.7	8.7
15-30	16.1	17.5
30-45	16.5	21.8
45-60	22.8	27.7

Tonzi
Dendrometer
Date	Day	Tag #	Reading (mm)
5/28/2010	148	72	10.9
		79	14.8
		102	x
		245	12.2
		250	21.9	(reset to 10.5 on May 7, 2009)
		1	21
		2	10.9
		3	18.9
		4	9.9
		5
		7	12	133
		8	16.5	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