When: Date: 4/18/2006 , Day: 108 , Watch Time: 9:25 .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: clear, nice breeze, warm but not hot
Phenology: It was very diverse in phenology at Vaira grassland. Stem height increased in some patch (~40%). I even saw some individuals blooming (<10%). The other 50% seemed still on stem splitting stage. At Tonzi, grass height increased, too. I saw yellow and pink followers. Oak trees leaf out 100%.
Summary

1. EC system was working well at the three sites. Data were downloaded.
2. Li_7500 at Vaira was swapped.
3. Three channels of soil CO2 profile system were out of range.
4. Collected grass sample for LAI and phenology in Tower and Vaira, oak leaves and branches for N
5. Collected oak woody and grass samples in Tonzi for Alex’s MIBA-US-03. Because previous samples haven’t been analyzed in time, sampling frequency start to be once a month.
6. Measured soil moisture, dendrometer.
7. No consine filter was applied in spectrum measurement. The consine corrector of the spectrometer is in order, not arrived yet.

Vaira_Grass Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.9 v; 12.6 amps; 2.9 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	8:27:03
Path/File name	D:\Data\V06_ 107 .flx D:\Data\VR06 1071400 .raw
	mean	std		mean	std
w	.18	.252	Ts	14.459	.53
u	.33	.317	H2O	1.44	.096
v	.10	.637	CO2	1.95	.031

1. downloading data
2. swaping Li-7500 Analyzer. (Remove SN# 41 ; install SN# 42 )
3. check the fans of air temp. and relative humidity sensors at Vaira. Good!
4. Check MD-9 system connections: BUSY WITH COM
5. 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: 13.5 v; 0.0 amps; 3.0 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	10:07:10
Path/File name	D:\Data\T06_ 108 .flx D:\Data\TW06 1081000 .raw
	mean	std		mean	std
w	.03	.531	Ts	14.84	.505
u	2.29	.515	H2O	2.303	.574
v	.570	.750	CO2	2.081	.026

1. downloading data
2. check the fans of air temp. and relative humidity sensors on the tower and the floor. Good!
3. CO2 profile system in the lab.
4. close gate and set up fence.

Toniz_Floor Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.8 v; 13.8 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	10:25:01
Path/File name	D:\Data\F06_104 .flx D:\Data\FL06 1041230 .raw
	mean	std		mean	std
w	-0.50	1.259	Ts	15.9	.35
u	-0.29	1.259	H2O	3.702	.12
v	0.350	0.605	CO2	2.19	.032

1. downloading data
2. Soil CO₂ profile

Reading from datalogger

Panel temp		20.8
Battery voltage		13.7
CO2E_1	-9999	TCE_1	20.523	CO2W_1	1434.1	TCW_1	14.87
CO2E_2	2965.9	TCE_2	21.154	CO2W_2	2433.1	TCW_2	13.18
CO2E_3	3305.1	TCE_3	16.56	CO2W_3	-9999	TCW_3	13.85
CO2E_4	4129.0	TCE_4	13.91	CO2W_4	-9999	TCW_4	13.52

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	1.64%	1	2cm (1%)	2860	1
4cm	5650	2	4cm	1.91%	4
8cm	6720	3	8cm	4870	2
16cm	8260	4	16cm	2.56%	3

1. Close gate and set up fence.

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
D108
18-Apr-06	SM
0-15	45.7	45.0	47.8	35.2	42.4	36.2	31.4	31.0	31.4
15-30	32.8	42.9	37.1	40.7	39.1	33.5	30.3	35.2	29.9
30-45	36.5	42.8	42.7	40.7	45.0	35.4	33.9	34.7	37.5
45-60	38.6	56.7	54.4	44.1	42.6	34.0	44.0	47.7	40.6
	A6D882B	A3D04E8	A6D72F5
0-15	37.3	36.6	29.0
15-30	31.7	35.5	34.5
30-45	36.0	34.0	35.6
45-60	43.1	48.3	45.9
vaira	57318a	7933dee
0-15	20.1	11.1
15-30	28.4	21.5
30-45	31.3	23.6
45-60	32.1	34.8

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
4/18/2006	108	71	22.5
		72	23.5
		77	Broken
		78	Broken
		79	23.3
		245	22.0
		248	24.5
		250	21.7
		255	22.9
		‌252‌	missing
		102	Broken

Sample sheet for MIBA

Sample vial	What
MIBA-US-01.164	Leave 1
MIBA-US-01. 165	Leave 2
MIBA-US-01. 166	Grass 1
MIBA-US-01. 167	Grass 2
MIBA-US-01. 168	Soil in 10 cm
MIBA-US-01. 169	Stem 1
MIBA-US-01. 170	Stem 2