When: Date: 6/28/2006 , Day: 179 , Watch Time: 9:10am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Jessica
Weather: cloudy, cover >95%
Phenology: yellow grass, green oak leave
Summary

1. EC systems worked well. I swapped Li-7500 at Tower and Floor, and download data at Tower, Floor, and Vaira. Also download met data miss-download before.
2. collect oak leaf and branches for LAI and N at Tonzi
3. MIBA samples were collected this time, from No. 178 -182.
4. measured soil moisture, TDR worked at Vaira, but somehow it didn’t work when I was at Tonzi. (Dennis unscrewed the screws on the top of the machine and found out one of the power wire was disconnected. FIXED!!!!)
5. read dendrometers
6. took spectrometer measurement, the laptop use a default config files, that may cause the difference between Matthias’ and those measurements taken by using the labtop in the lab.

Vaira_Grass Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.1 v; 5.3 amps; 3.1 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	9:41:55
Path/File name	D:\Data\V06_179 .flx D:\Data\VR06 1790900 .raw
	mean	std		mean	std
w	0.04	0.278	Ts	26.5	0.787
u	0.1	0.298	H2O	2.4	0.005
v	-0.56	0.337	CO2	1.6	0.015

1. downloading data
2. check the fans of air temp. and relative humidity sensors at Vaira. Good.
3. Check MD-9 system connections: BUSY WITH COM
4. Check CR23X with two multiplexers

Sys_vot = not able to read because BUSY WITH COM

1. Check levels of Radiation sensors, clear up surfaces.

9. Closed gate and set up fence.

Tonzi_Tower Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.1 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	10:20:50
Path/File name	D:\Data\T06_179.flx D:\Data\TW06 1791000 .raw
	mean	std		mean	std
w	-0.49	0.268	Ts	25.5	0.107
u	-.97	0.245	H2O	2.1	0.012
v	-0.06	0.459	CO2	1.5	0.006

1. downloading data
2. swaping Li-7500 Analyzer. (Remove SN# 73 ; install SN# 35 )
3. check the fans of air temp. and relative humidity sensors on the tower and the floor. Good.
4. Check calibration cylinders, sounds working well.

CO₂ 2000 psig; flow 20 psi.
N₂ 2000 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.

1. close gate and set up fence.

Toniz_Floor Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.6 v; 9.7 amps; 3.3 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	11:54:36
Path/File name	D:\Data\F06_ 179 .flx D:\Data\FL06 1791130 .raw
	mean	std		mean	std
w	0.06	0.16	Ts	27.6	0.469
u	-0.06	0.414	H2O	2.29	0.149
v	0.62	0.215	CO2	1.46	0.04

1. downloading data
2. swaping Li-7500 Analyzer. (Remove SN# 65 ; install SN# 418 )
3. Check MD-9 system connections

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		34.46
Battery voltage		12.7
CO2E_1	332	TCE_1	40.1	CO2W_1	626	TCW_1	32
CO2E_2	438	TCE_2	45.9	CO2W_2	1092	TCW_2	28
CO2E_3	591	TCE_3	35.9	CO2W_3	1858	TCW_3	25
CO2E_4	778	TCE_4	31.9	CO2W_4	1893	TCW_4	26

1. Close gate and set up fence.

TDR (only at Vaira)

vaira	57318a	7933dee
0-15	11.1	4.4
15-30	5.5	10.5
30-45	11.3	12.5
45-60	16.0	17.4

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
6/28/2006	179	71	22.6
		72	23.4
		77	Broken
		78	Broken
		79	23.4
		245	22.5
		248	Out of range‌‌
		250	21.9
		255	22.4
		‌252‌	Missing
		102	Broken

Sample sheet for MIBA

Sample vial	What
MIBA-US-01.178	Leave 1
MIBA-US-01. 179	Leave 2
MIBA-US-01. _-__	Grass 1
MIBA-US-01. -	Grass 2
MIBA-US-01. 180	Soil in 10 cm
MIBA-US-01. 181	Stem 1
MIBA-US-01. 182	Stem 2

No grass samples because all grass are dead.