When: Date: 5/13/2010 , Day: 133 , Watch Time: 11:00 .
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe, Ameriflux Anders came to Toniz and started calibration measurements for 10 days.
Weather: sunshine, not too hot
Phenology: grasses at development stage, a lot of yellow flowers, green oak leaves, fully extended, met Mr. Tonzi.

Tonzi
Vaira:

Summary

1. swapped LI-7500 at Tonzi Tower and Floor sites.
2. check and download data at Tower, Floor, and Vaira
3. Joe swapped a new webcam at Vaira.
4. Calibrate Li-800 in the field. New N2 tank.
5. collected samples of grasses at Vaira
6. dendrometers (some)
7. soil moisture
8. groundwater well:

Date	DOY	Location	Depth from the black thing (feet)
5/13/2010	133	Floor	20.48
		Tower	- (The sensor didn’t respond properly when hitting the water.)
		roadside	-

Vaira_Grass 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.)

Before swapping

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. Joe swapped a new webcam at Vaira.
3. Check rain gage, make sure not clogged. YES!
4. 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.)

After swap: remove #976; install #65

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 psi; 418.8 ppm.
N₂ new tank psig; flow 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.

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.)

Before swap

Remove #1594; install #35

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 panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	1610	1	2cm (1%)	3350	1
4cm	1930	2	4cm	4350	4
8cm	2956	3	8cm	3920	2
16cm	2350	4	16cm	9090	3

1. Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
5/13/2010	133
	sm
0-15	23.2	11.2	20.0	16.2	24.7	22.6	17.6	14.7	9.7
15-30	28.0	22.2	30.1	25.2	27.4	19.1	24.9	25.5	10.6
30-45	30.7	34.6	39.4	29.0	41.9	21.2	24.6	27.4	27.1
45-60	37.4	55.1	64.9	49.4	43.4	25.6	37.7	44.8	21.3
	A6D882B	A3D04E8	A6D72F5
0-15	18.8	12.7	14.7
15-30	21.0	8.1	24.9
30-45	30.1	28.2	31.5
45-60	41.7	45.7	48.6
vaira	57318a	7933dee
0-15	11.1	8.8
15-30	20.6	21.0
30-45	39.6	24.3
45-60	41.4	34.0

Tonzi
Dendrometer
Date	Day	Tag #	Reading (mm)
5/13/2010	133	72	9.4
		79	13.0
		102	X
		245	11.1
		250	22.0	(reset to 10.5 on May 7, 2009)
		1
		2
		3
		4
		5
		7		133
		8		11828
		71
		77		‌
		78	X	‌
		248	X	broken
		255	X	‌
		‌252‌	X	‌
		6	X

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