When: Date: 1/30/2008 , Day: 30 , Watch Time: 10:00 .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: partially cloudy, about 50% cloud coverage
Phenology: wetter. Grass grew bigger and more new grass germinated. Water in Mr. Tonzi’s pond was half-filled and looked muddy. A lot of cow footprints at Tonzi. Mr. Tonzi was cutting a big falling tree. He said, “It’s too tired to stand up.” The big falling tree is the one closed to floor site. Basal diameter is 42.36 inches. It is a red oak because it has thin sap layer and pink woody center. See more pictures at D:\Field_Notes\Year2008\photo_Day30_30Jan2008
Summary

1. EC systems were working well at the three sites.
2. CO2 and N2 tank is in low pressure, about 100 psig!!!
3. grass leaf collected for LAI. Stems also counted.
4. Met Ted at the gate of Vaira. He just checked Vaira site and found out the solar panel of the gate didn’t work. He’s going to fix it soon.
5. see differences in calibration equations of soil moisture machine – Moisture-Point! (Matteo noticed the problem in Sherman Island, and we saw the similar thing at Tonzi.)

Vaira_Grass Site

1. Fence and gate power: BROKEN v.
2. Panel and Batteries: 12.7 v; 6.3 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.)

Time
Path/File name	D:\Data\V08_030 .flx D:\Data\VR08 .raw
	mean	std		mean	std
w	0.8		Ts	15.3	1.534
u	-0.23		H2O	1.715	0.072
v	0.05		CO2	1.98	0.039
			Tc	1.12	0.185

1. downloading data – Yes. However, instant readings from Data logger at Vaira were all zero!!! Met data weren’t downloaded to the PC after Day 10.
2. check the fans of air temp. and relative humidity sensors at Vaira. OK.
3. Check MD-9 system connections. OK.
4. Check levels of Radiation sensors, clear up surfaces. Yes.
5. Closed gate and set up fence. - Voltage meter of Vaira fence looks broken because the pointer was always on the far right side even though the switch was off.

Tonzi_Tower Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 12.0 v; 0.0 amps; 4.6 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_030 .flx D:\Data\TW08 .raw
	mean	std		mean	std
w	-0.48	0.416	Ts	9.6	0.546
u	-0.51	0.554	H2O	1.5	0.030
v	3.6	1.005	CO2	2.2	0.014

1. downloading data Yes.
2. check the fans of air temp. and relative humidity sensors on the tower and the floor. Yes.
3. Check calibration cylinders;

CO₂ 100 psig; flow 20 psi. (Tank: 422.2 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.
Readings:

388	384	387	387	0.035	422
940	940	940	940	940	940
43	43	43	44	43	43
49	49	49	49	48	48

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. close gate and set up fence. Yes.

Toniz_Floor Site

1. Fence and gate power: >12 v.

2. Panel and Batteries: 12.8 v; 4.6 amps; 2.0 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\F08_030 .flx D:\Data\FL08 .raw
	mean	std		mean	std
w	-0.02	0.21	Ts	10.2	0.39
u	-1.2	0.401	H2O	1.823	0.109
v	-0.27	0.725	CO2	2.166	0.009

1. downloading data Yes.
2. Close gate and set up fence. Yes.

Soil Moisture measurement:

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
30-Jan-08	30
	SM
0-15	44.6	32.7	44.0	40.5	39.0	42.0	28.8	25.3	22.0
15-30	40.5	41.7	39.3	39.6	40.5	39.9	31.0	35.3	25.8
30-45	41.3	44.1	41.3	39.9	45.8	36.8	34.3	34.6	36.8
45-60	40.3	54.3	60.3	49.1	41.4	35.4	44.8	45.7	40.0
	A6D882B	A3D04E8	A6D72F5
0-15	37.0	34.1	29.4
15-30	30.4	37.8	37.4
30-45	37.4	36.6	37.7
45-60	42.8	48.3	45.6
vaira	57318a	7933dee
0-15	26.4	25.0
15-30	28.6	34.1
30-45	32.1	32.9
45-60	35.4	38.0
Atten: Only useful after "Tonzi" is sorted by Ordering & Depth after data input.

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
1/30/2008	30	71	X
		72	7.3
		77	X
		78	X
		79	12.3
		245	4.5
		248	14.5
		250	10.5
		255	X
		‌252‌	X
		102	5.1