When: Date: 9/8/2006 , Day: 251 , Watch Time: 10:10am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Jessica, and Gretchen
Weather: clear, not too hot
Phenology: dead grasses, trees looks more blue. Very dry. Met Mr. Tonzi and Mr. Vaira.
Summary

1. EC systems worked well. Li-7500 at Tower and Floor were swapped, and Varia data and Floor met data were download.
2. ccollect grass sample for LAI and phenology in Tower and Vaira, oak branches for N.
3. MIBA samples were collected this time (No. 188 – 192).
4. measured dendrometer and spectrometer.

Vaira_Grass Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.8 v; 13.1 amps; 2.8 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\V06_251 .flx D:\Data\VR06 2510900 .raw
	mean	std		mean	std
w	-0.03	0.369	Ts	23.9	1.508
u	0.02	2.269	H2O	3.09	0.029
v	2.98	1.274	CO2	1.78	0.024

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

Sys_vot = 14.03
PC_start = didn’t find it.

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

9. Closed gate and set up fence.

Tonzi_Tower Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.5 v; 0.0 amps; 2.7 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\T06_ 251 .flx (!!!!! One day ahead) D:\Data\TW06 2511000 .raw
	mean	std		mean	std
w	1.73	0.930	Ts	23.5	0.829
u	1.95	1.10	H2O	3.1	0.017
v	0.59	1.644	CO2	1.5	0.007

1. downloading data
2. swaping Li-7500 Analyzer. (Remove SN# 73 ; install SN# 41 )
3. check the fans of air temp. and relative humidity sensors on the tower and the floor. Good.
4. Check calibration cylinders; STILL in LAB.
5. close gate and set up fence.

Toniz_Floor Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.5 v; 9.7 amps; 1.9 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\F06_251 .flx D:\Data\FL06 .raw
	mean	std		mean	std
w	0.94	0.564	Ts	23.7	1.234
u	1.22	0.95	H2O	2.5	0.006
v	0.34	1.497	CO2	1.6	0.023

1. downloading data (only Met data from D221, memory stick was full.)
2. swaping Li-7500 Analyzer. (Remove SN# 418 ; install SN# 65 )

1. Check MD-9 system connections: ALL SUCCESSFUL!!!

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		33.4
Battery voltage		12.9
CO2E_1	248	TCE_1	41	CO2W_1	361	TCW_1	27
CO2E_2	292	TCE_2	46	CO2W_2	527	TCW_2	26
CO2E_3	354	TCE_3	36	CO2W_3	1024	TCW_3	25
CO2E_4	405	TCE_4	30	CO2W_4	933	TCW_4	26

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)		1	2cm (1%)		1
4cm		2	4cm		4
8cm		3	8cm		2
16cm		4	16cm		3

1. Close gate and set up fence.

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
9/8/2006	251	71	22.5
		72	23.3
		77	Broken
		78	Broken
		79	23.2
		245	22.2
		248	24.5
		250	21.6
		255	20.9
		‌252‌	missing
		102	Broken

Sample sheet for MIBA

Sample vial	What
MIBA-US-03.188	Leave 1
MIBA-US-03.189	Leave 2
MIBA-US-03. __-_	Grass 1
MIBA-US-03. -	Grass 2
MIBA-US-03. 190	Soil in 10 cm
MIBA-US-03. 191	Stem 1
MIBA-US-03. 192	Stem 2