When: Date: , Day: , Watch Time: .
Where: Tonzi/Vaira Ranch
Who: Siyan, Jessica
Weather: clear, nice breeze
Phenology: yellow grasses, see some yellow and big purple flowers
Summary

1. Pre-dawn water potential measurement
2. help Jessica do some leaf N measurements
3. check and download data at Tower, Floor, and Vaira
4. collect oak leaves and branches for LMA and N
5. read dendrometer
6. measure soil moisture

Vaira_Grass Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.0 v; 5.4 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.)

Time
Path/File name	D:\Data\V08_ 152 .flx D:\Data\VR08 .raw
	mean	std		mean	std
w	-0.87	0.561	Ts	24.8	1.642
u	0.21	2.497	H2O	1.5	0.025
v	1.87	1.247	CO2	2.2	0.037
			Tc	2.6	0.223

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

Tonzi_Tower Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 14.0 v; 0.0 amps; 5.1 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Time
Path/File name	D:\Data\T08_ 152 .flx D:\Data\TW08 .raw
	mean	std		mean	std
w			Ts
u			H2O
v			CO2

1. downloading data YES!
2. check the fans of air temp. and relative humidity sensors on the tower and the floor.
3. Check rain gage, make sure not clogged. YES!
4. Check calibration cylinders;

CO₂ 1700 psig; flow 18 psi.
N₂ 1800 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
How to check the CO2 values‌ Click “Ports/Flags” button to see which ports or flags is setting high. Pressure should be less than ambient value. When Flag 8 is high, it may indicate that RRR’s battery is low.

1	2	3	4	zero	span
393	387	384	386.8	1.707	436.6
939	939	939	939.3	939	438.9
45.3	45.5	45.5	45.5	44.6	44.6
49.9	49.9	49.9	49.9	49.3	49.4

1. close gate and set up fence. YES!

Toniz_Floor Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.6 v; 9.8 amps; 1.8 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Time
Path/File name	D:\Data\F08_ 152 .flx D:\Data\FL08 .raw
	mean	std		mean	std
w	0.36	0.276	Ts	20.0	0.824
u	0.56	0.022	H2O	2.5	0.023
v	0.8	1.030	CO2	1.47	0.014

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

CR23X3 – floor-Met
CR23X5 – soil CO₂ profile
CR23X6 – tower-Met
CR10X2 – floor-Met
CR10X4 – sap-flow
CR10X7 – CO₂ profile
CR10X8 – wind profile

1. Soil CO₂ profile

Reading from datalogger

Panel temp		29.2
Battery voltage		15.0
CO2E_1	181.5	TCE_1	43.2	CO2W_1	617	TCW_1	22.7
CO2E_2	279	TCE_2	50.7	CO2W_2	704	TCW_2	22.1
CO2E_3	463	TCE_3	35.9	CO2W_3	969	TCW_3	23.1
CO2E_4	659	TCE_4	29.2	CO2W_4	258	TCW_4	20.1

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	360	1	2cm (1%)	1200	1
4cm	560	2	4cm	1420	2
8cm	970	3	8cm	1880	3
16cm	1340	4	16cm	5160	4

1. Close gate and set up fence. YES!

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
5/31/2008	152	71	X
		72	9.6
		77	X
		78	X
		79	14.0
		245	5.0
		248	15.9
		250	11.1
		255	X
		‌252‌	X
		102	6.1

Notes: “X” means not working any more.

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
31-May-08	152
	SM
0-15	5.6	2.0	13.1	2.7	11.4	0.1	8.5	7.4	4.4
15-30	13.3	12.1	10.6	13.2	8.0	7.7	13.5	7.1	4.4
30-45	19.8	14.0	11.9	18.4	6.6	10.6	14.3	18.2	14.6
45-60	16.3	9.0	14.9	17.6	21.2	12.8	15.1	25.5	12.4
	A6D882B	A3D04E8	A6D72F5
0-15	10.2	7.6	3.3
15-30	7.5	8.6	12.1
30-45	18.0	19.2	13.4
45-60	19.9	20.8	6.2
vaira	57318a	7933dee
0-15	3.4	5.3
15-30	6.6	8.7
30-45	13.1	12.3