When: Date: 5/27/2009 , Day: 147 , Watch Time: 4:45am .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: clear, hot
Phenology: similar to the view of last visiting, grass leaves turned yellow, HYGL yellow flower everywhere. The date for grass die-out is May 20, 2009 (Day 140)

Tonzi
Vaira

Summary

1. measured pre-dawn leaf water potential
2. measured A-Ci and A-PAR curves for gray pine
3. checked and downloaded data at Tower, Floor, and Vaira
4. calibrated Li-800 in the field (bring the copy of Ted’s instruction)
5. collected grass sample for biomass, in-fence and out-fence at Vaira
6. collected oak leaves and small branches
7. read dendrometer
8. measured soil moisture
9. took spectrometer measurement
10. groundwater well

Date	DOY	Location	Depth from the black thing (feet)
5/27/2009	147	Floor	25.77
		Tower	29.73
		roadside	34.75

Vaira_Grass Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 12.4 v; 0.5 amps; 3.2 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!

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: 12.1 v; 0.0 amps; 2.1 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

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 1250 psig; flow 20 psi; 431.25 ppm.
N₂ 800 psig; flow 20 psi.
Manually calibrate Li-800. Following Ted’s instruction: H:\IoneSavanna_2004\Tower_2004\CO2Profile\LI800_Calibration_Procedure_2Nov04.txt

before zero

after zero


before span


after span

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: 13.1 v; 9.2 amps; 2.1 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

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

CR23X3 – floor-Met


CR23X5 – soil CO₂ profile



CR23X6 – tower-Met


CR10X2 – floor-Met
V

1. Soil CO₂ profile

Reading from datalogger
Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	500	1	2cm (1%)	1130	1
4cm	820	2	4cm	1500	4
8cm	1510	3	8cm	3220	2
16cm	2780	4	16cm	8260	3

1. Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
5/27/2009	147
	SM
0-15	7.4	3.6	16.5	7.4	11.8	7.7	10.9	10.0	4.2
15-30	14.5	13.3	17.3	15.8	9.0	7.2	14.2	14.5	5.7
30-45	20.7	18.2	19.3	19.8	4.5	10.9	15.1	19.3	16.2
45-60	18.8	10.2	24.2	18.2	21.1	11.9	16.2	27.6	13.3
	A6D882B	A3D04E8	A6D72F5
0-15	12.7	9.4	4.5
15-30	10.0	10.0	12.7
30-45	18.4	19.3	15.9
45-60	20.8	21.1	11.9
vaira	57318a	7933dee
0-15	2.8	2.0
15-30	5.0	8.1
30-45	6.3	12.3
45-60	16.7	17.9

Tonzi
Dendrometer
Date	Day	Tag #	Reading (mm)
5/27/2009	147	71	X
		72	5.6
		77	X
		78	X
		79	10.6 (reset to 10.5 on May 7, 2009)
		245	8.0
		248	X
		250	16.9
		255	X
		‌252‌	X
		102	11.3

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

Date	Day	Tag #	Reading (mm)	Original reading (mm)	Location
		1	17.6		133
		2	9.0		11828
		3	13.5		11829
		4	4.5		‌
		5	11		‌
		6	X		broken
		7	12.9		‌
		8	14.1		‌