When: Date: 5/17/2005 , Day: 159, Watch Time: 11:30 am .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: cloudy
Phenology: In Vaira, tall grass became yellow, taller than radiation sensor, cut; more green grass under tall grass. In Tonzi, some early grass had seeds and became yellow, but small spread-leaf grass were dominant and still green.

Tasks

1. check Flux systems, swap Li-7500 in Vaira, download data
2. grass samples
3. Alex’s samples
4. Spectrum measurements
5. soil moisture
6. dendrometer

Vaira_Grass Site

1. Fence and gate power: > 12.0 v.
2. Panel and Batteries: 14.3 v; 8.4 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	10:36:56
Path/File name	D:\Data\V05_137.flx
	mean	std		mean	std
w	0.01	0.469	Ts	18.868	0.931
u	0.6	0.691	H2O	1.469	0.602
v	0.11	1.776	CO2	1.039	0.126

1. Reading from Gillsonic screen after downloading data or swaping Li-7500 Analyzer. (Remove SN# 65 ; install SN# 73 )

Time	10:50:38
Path/File name	D:\Data\V05_132.flx
	mean	std		mean	std
w	-0.170	0.348	Ts	18.376	1.185
u	-1.06	0.44	H2O	2.212	1.736
v	0.79	1.139	CO2	1.816	1.244

1. Check CR23X with two multiplexers

Sys_vot = 2.4314
PC_start = 0.37351
6. Closed gate and set up fence.

Tonzi_Tower Site

1. Fence and gate power: >12.0 v.
2. Panel and Batteries: 13.2 v; 5.8 amps; 0.0 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	11:49:45
Path/File name	D:\Data\T05_137.flx
	mean	std		mean	std
w	0.69	0.544	Ts	17.202	0.181
u	2.57	0.866	H2O	2.481	0.237
v	1.77	1.272	CO2	1.590	0.225

1. Check calibration cylinders;

CO₂ 1500 psig; flow 5-6 psi.
N₂ 1500 psig; flow 12 psi.

1. close gate and set up fence.

Toniz_Floor Site

1. Fence and gate power: >12.0 v.
2. Panel and Batteries: 13.3 v; 3.8 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	12:08:01
Path/File name	D:\Data\F05_137.flx
	mean	std		mean	std
w	0.14	0.2	Ts	16.77	0.121
u	-0.59	0.727	H2O	2.209	0.075
v	0.10	0.657	CO2	1.734	0.005

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
D137
17-May-05	SM
0-15	18.9	16.2	33.7	19.6	30.9	20.7	19.6	16.8	9.1
15-30	24.7	26.1	35.0	32.0	32.0	18.5	25.5	26.7	10.5
30-45	27.0	32.7	37.8	33.5	40.8	21.9	23.8	28.6	23.8
45-60	29.5	34.8	54.2	45.4	37.3	27.1	32.9	40.4	15.4
	A6D882B	A3D04E8	A6D72F5
0-15	29.2	24.1	10.0
15-30	21.4	22.6	28.2
30-45	31.3	30.5	30.8
45-60	41.7	49.0	40.9
vaira	57318a	7933dee
0-15	5.1	12.5
15-30	16.9	23.7
30-45	19.4	23.6
45-60	21.5	27.1

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
5/17/2005	137	71	22.3
		72	23.0
		77	--
		78	4.9
		79	22.9
		245	18.5
		248	22.5
		250	21.8
		255	21.9
		‌252‌	20.3 (new tag 102)

Sample vial	What
MIBA-US-01._049___	Leave 1
MIBA-US-01._ 050___	Leave 2
MIBA-US-01. _051___	Grass 1
MIBA-US-01. _052___	Grass 2
MIBA-US-01. __053__	Surface Litter
MIBA-US-01. _054___	Soil in 7cm
MIBA-US-01. _055___	Stem 1
MIBA-US-01. _056___	Stem 2