When: Date: 5/18/2006 , Day: 138 , Watch Time: 10:30am .
Where: Tonzi/Vaira Ranch
Who: Siyan, go with Jessica
Weather: clear, hot
Phenology

• >50% grass at Vaira turned to yellow.
• Grass at Tonzi looked still green, but the tall grass started to seed and die. Broad leaf herbs were green.

Summary

1. check and download data at Tower, Floor, and Vaira. All is well.
2. Spectrum measurement was not taken because the head was not found and brought to the field.
3. collected grass sample for LAI and dry materials in Tower and Vaira, oak leaves and branches for LAI and N
4. oak woody and grass samples in Tonzi (Alex). No litter sample anymore according to Alexander’s notice. (sampling frequency: once a month). Labeling from MIBA-US-03-171-177.
5. measure soil moisture and dendrometer

Vaira_Grass Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.4 v; 8.6 amps; 2.3 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
Path/File name	D:\Data\V06_ 138 .flx D:\Data\VR06 1381100 .raw
	mean	std		mean	std
w	-0.06	0.378	Ts	30.4	1.224
u	-3.08	1.077	H2O	2.7	0.238
v	2.86	0.771	CO2	1.476	0.029

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 CR23X with two multiplexers: BUSY WITH COM
5. Check levels of Radiation sensors, clear up surfaces.
6. Closed gate and set up fence.

Tonzi_Tower Site

1. Fence and gate power: OK (Rich and Gosgon here) v.
2. Panel and Batteries: 14.1 v; 0.0 amps; 4,4 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	10:43:57
Path/File name	D:\Data\T06_ 138 .flx D:\Data\TW061381000 .raw
	mean	std		mean	std
w	.5	.53	Ts	26.8	0.8
u	.34	.855	H2O	2.221	0.091
v	1.13	.47	CO2	1.667	0.044

1. downloading data !!!! D120, be careful bad naming in flux data. Filenames need to be changed before processing.
2. check the fans of air temp. and relative humidity sensors on the tower and the floor. Good.
3. Check calibration cylinders;

CO₂ 2000 psig; flow 15 psi.
N₂ 2000 psig; flow 15 psi.
7. close gate and set up fence.
Toniz_Floor Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.5 v; 11.5 amps; 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\F06_ .flx D:\Data\FL06 .raw
	mean	std		mean	std
w	0.08	0.196	Ts	29.26	1.115
u	0.06	0.015	H2O	2.491	0.135
v	0.27	0.309	CO2	1.636	0.051

1. downloading data: D104-107 & rest
2. Check MD-9 system connections: Good.

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		34.1
Battery voltage		13.2
CO2E_1	599.9	TCE_1	35.3	CO2W_1	7304	TCW_1	26.4
CO2E_2	732	TCE_2	34.4	CO2W_2	1407	TCW_2	22.8
CO2E_3	1208	TCE_3	28.6	CO2W_3	2311	TCW_3	21.1
CO2E_4	1557.4	TCE_4	24.7	CO2W_4	2545.6	TCW_4	21.8

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	1220	1	2cm (1%)	1470	1
4cm	1480	2	4cm	5130	4
8cm	3440	3	8cm	2820	2
16cm	3150	4	16cm	0.92%	3

1. Close gate and set up fence.

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
18-May-06	138
	SM
0-15	8.4	5.9	13.5	6.8	13.1	9.9	11.1	6.5	4.2
15-30	17.5	14.3	19.1	13.9	11.4	9.0	15.7	14.2	3.0
30-45	23.8	24.7	13.5	17.4	9.5	13.8	15.2	19.9	18.4
45-60	28.5	36.2	27.9	34.2	26.5	17.8	17.3	29.2	16.0
	A6D882B	A3D04E8	A6D72F5
0-15	15.4	13.3	4.8
15-30	13.0	12.5	16.3
30-45	25.6	22.2	17.7
45-60	39.2	39.9	36.2
vaira	57318a	7933dee
0-15	11.1	3.1
15-30	5.8	10.1
30-45	14.3	14.0
45-60	17.7	18.9

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
5/18/2006	138	71	22.5
		72	23.4
		77	Broken
		78	Broken
		79	23.3
		245	22.3
		248	24.6
		250	21.7
		255	22.9
		‌252‌	missing
		102	Broken

Sample sheet for MIBA

Sample vial	What
MIBA-US-01.171	Leave 1
MIBA-US-01. 172	Leave 2
MIBA-US-01. 173	Grass 1
MIBA-US-01. 174	Grass 2
MIBA-US-01. 175	Soil in 10 cm
MIBA-US-01. 176	Stem 1
MIBA-US-01. 177	Stem 2