When: Date: 3/8/2006 , Day: 67 , Watch Time: 10:30am .
Where: Tonzi/Vaira Ranch
Who: Siyan, DDB, and Ted
Weather: rained lately, overcast, light wind
Phenology: green grass; trees still dormant. Grass had 4-5 leaves and stem split 1-2, max 5. grass LAI ~= 0.8, 0.3 at Vaira and Tonzi, respectively.
Summary

1. swap Li_7500 at Floor and Vaira (but zero may off because N2 tank wasn’t connected with CO2/H2O scrubbers.)
2. check and download data at Tower, Floor, and Vaira
3. grass sample for LAI and phenology in Tower and Vaira, oak branches for N
4. oak woody and grass samples in Tonzi (Alex). No litter sample anymore according to Alexander’s notice.
5. measurements of soil moisture, dendrometer, and spectrometer were taken.

Vaira_Grass Site

1. Ted was there and he checked the power system. It worked well.
2. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Time	11:11:45
Path/File name	D:\Data\V06_ 066 .flx D:\Data\VR06 067900 .raw
	mean	std		mean	std
w	0.06	0.311	Ts	12.9	0.82
u	1.20	1.487	H2O	2.34	0.241
v	2.27	2.215	CO2	1.93	0.067

1. downloading data
2. swaping Li-7500 Analyzer. (Remove SN# 42 ; install SN# 41 )
3. check the fans of air temp. and relative humidity sensors at Vaira.
4. check levels of Radiation sensors, clear up surfaces.
5. closed gate and set up fence.

Tonzi_Tower Site

1. Ted was there and he checked the power system. It worked well.
2. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Time	12:39
Path/File name	D:\Data\T06_ 067 .flx D:\Data\TW06 0671200 .raw
	mean	std		mean	std
w	-.43	.32	Ts	13.64	0.046
u	2.46	.65	H2O	1.29	0.046
v	-1.32		CO2	1.96	0.029

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

CO₂ 424.8 ppm; 2000 psig; flow 8 psi.
N₂ 2100 psig; flow 6 psi.
Manually calibrate Li-800. Following Ted’s instruction: H:\IoneSavanna_2004\Tower_2004\CO2Profile\LI800_Calibration_Procedure_2Nov04.txt
Is the pump running‌

1. close gate and set up fence.

Toniz_Floor Site

1. Ted was there and he checked the power system. It worked well.
2. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Time	13:09
Path/File name	D:\Data\F06_ 067 .flx D:\Data\FL06 0671300 .raw
	mean	std		mean	std
w	-.09	.26	Ts	14.9	.28
u	-.05	.58	H2O	1.69	.272
v	.200	.376	CO2	2.34	.692

1. downloading data
2. swaping Li-7500 Analyzer. (Remove SN# 35 ; install SN# 65 )
3. Check MD-9 system connections

CR23X3 – floor-Met
CR23X5 – soil CO₂ profile OK!
CR23X6 – tower-Met OK!
CR10X2 – floor-Met OK!
CR10X4 – sap-flow OK!
CR10X7 – CO₂ profile not OK! Ted took it back to lab.
CR10X8 – wind profile OK!

1. Soil CO₂ profile

Reading from datalogger

Panel temp
Battery voltage
CO2E_1	offset	TCE_1	14.8	CO2W_1	958	TCW_1	16.3
CO2E_2	2152	TCE_2	16.4	CO2W_2	1062	TCW_2	13
CO2E_3	2068	TCE_3	13.4	CO2W_3	4070	TCW_3	12.3
CO2E_4	1899	TCE_4	11.7	CO2W_4	offset	TCW_4	13.1

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	1.73%	1	2cm (1%)	1940	1
4cm	9310	2	4cm	1.19%	4
8cm	4160	3	8cm	2.50	2
16cm	3790	4	16cm	1.62%	3

1. Close gate and set up fence.

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
D067
8-Mar-06	SM
0-15	46.0	42.2	46.8	30.4	37.9	40.7	27.6	34.3	25.9
15-30	39.9	42.4	38.4	41.7	40.6	38.4	29.6	34.0	26.0
30-45	38.5	43.3	40.8	37.7	44.2	34.1	33.2	34.2	37.6
45-60	40.4	57.6	51.9	43.0	40.9	33.5	42.6	45.8	36.8
	A6D882B	A3D04E8	A6D72F5
0-15	39.0	34.2	27.7
15-30	43.0	37.1	35.0
30-45	44.4	33.4	35.0
45-60	43.4	48.6	44.1
vaira	57318a	7933dee
0-15	20.8	34.2
15-30	27.8	31.4
30-45	31.0	30.8
45-60	31.8	35.9

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
3/8/2006	67	71	22.5
		72	23.3
		77	Broken
		78	Broken
		79	23.0
		245	21.7
		248	24.5
		250	21.7
		255	23.0
		‌252‌	missing
		102	Broken

Sample sheet for MIBA

Sample vial	What
MIBA-US-01._-	Leave 1
MIBA-US-01._-_	Leave 2
MIBA-US-01. __159__	Grass 1
MIBA-US-01. _160_	Grass 2
MIBA-US-01. _161_	Soil in 10 cm
MIBA-US-01. _162__	Stem 1
MIBA-US-01. _163_	Stem 2