When: Date: 3/2/2007 , Day: 61 , Watch Time: 9:30am .
Where: Tonzi/Vaira Ranch
Who: Siyan and Young-Ryel
Weather: clear, very windy on the top of the tower
Phenology: green grass, more germination after recent rains, grass starts taking up carbon!
Summary

1. Check EC system, swap Li-7500 at all three sites, and download data. All is well.
2. Radiation Tram was parking in the middle of the track.
3. Power on Floor site is OK.
4. Soil CO₂ profile worked well, but no power on the fences. Didn’t find broken wire‌
5. dendrometer, soil moisture, and spectrume were measured. Dendrometers need reset because some have been out of range!!!

Vaira_Grass Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 14.0 v; 13.9 amps; 2.5 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	9:39:56
Path/File name	D:\Data\V07_061.flx D:\Data\VR070610930.raw
	mean	std		mean	std
w	0.65	0.334	Ts	13.64	0.93
u	1.57	0.4	H2O	1.6	0.127
v	1.69	0.606	CO2	2.1	0.039
			TC	0.43	0.051

1. downloading data OK
2. swaping Li-7500: remove #41, install #73
3. clean up the surfaces of Delta PAR sensor, KZ PARs, 4-way radiation sensors.
4. check CR23X: BUSY WITH COM.
5. spectrometer measurement was taken by Youngryel.
6. Closed gate and set up fence.

Tonzi_Tower Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.3 v; 0.0 amps; 5.8 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\T07_061 .flx D:\Data\TW07061.raw
	mean	std		mean	std
w	-0.37	0.04	Ts	15.9	0.21
u	4.24	1.206	H2O	1.695	0.018
v	-1.0	1.539	CO2	2.704	0.054

1. downloading data OK
2. swaping Li-7500: remove #065, install #0976.
3. check the fans of air temp. and relative humidity sensors on the tower and the floor.
4. Check calibration cylinders;

CO₂ 900 psig; flow 18 psi.
N₂ 1200 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 OK

1. close gate and set up fence. OK

Toniz_Floor Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.7 v; 10.4 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	11:53:39
Path/File name	D:\Data\F06_ 061 .flx D:\Data\FL0761 .raw
	mean	std		mean	std
w	1.0	0.545	Ts	15.8	0.804
u	1.9	0.945	H2O	1.9	0.117
v	1.2	0.620	CO2	2.03	0.07

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

CR23X3 – floor-Met
CR23X5 – soil CO₂ profile
CR23X6 – tower-Met
CR10X2 – floor-Met
CR10X4 – sap-flow
CR10X7 – CO₂ profile
CR10X8 – wind profile
CR1021 – Xingyuan’s sap flow

1. Soil CO₂ profile

Reading from datalogger

Panel temp		19.9
Battery voltage		13.5
CO2E_1	1171.3	TCE_1	15.0	CO2W_1	648	TCW_1	13.3
CO2E_2	1764	TCE_2	16.6	CO2W_2	927	TCW_2	11.0
CO2E_3	1720	TCE_3	11.6	CO2W_3	2839	TCW_3	11.3
CO2E_4	1981	TCE_4	9.3	CO2W_4	4251	TCW_4	11.6

1. soil moisture (TDR)

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
2-Mar-07	61
	SM
0-15	40.8	34.2	44.8	29.4	38.1	35.1	28.3	26.0	20.5
15-30	43.5	40.8	40.9	40.1	41.1	33.4	29.7	33.9	20.8
30-45	39.7	43.8	43.4	43.2	49.3	36.0	32.4	34.2	35.4
45-60	43.4	62.1	57.2	45.0	40.4	35.6	45.0	46.6	32.8
	A6D882B	A3D04E8	A6D72F5
0-15	38.7	34.2	24.1
15-30	26.0	32.1	34.9
30-45	36.0	36.4	37.3
45-60	43.6	49.9	49.6
vaira	57318a	7933dee
0-15	24.2	28.4
15-30	28.7	32.3
30-45	31.8	32.4
45-60	33.6	38.0

1. Close gate and set up fence.

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
3/2/2007	61	71	23.9
		72	23.5
		77	Broken
		78	Broken
		79	23.5
		245	22.7
		248	Out of range
		250	21.9
		255	22.4
		‌252‌	missing
		102	Broken