When: Date: 2/10/2006 , Day: 40 , Watch Time: 10:30am .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: clear, ~70^oF
Phenology:green grass, very patchy. Somewhere still seen brown debris patches at both sites. At Vaira, grass looked stronger and bigger by the side of debris patch than those without debris surrounding. More splitting stems were observed at Vaira, but new sprouting grass was still going on. The grass phenology was very dynamic. The mass structure of grass seems very interesting. Tonzi’s grass didn’t have too many stem-spliting yet. Talk to Mr. Tonzi. He mentioned that he’s expecting to see oak leaves come out earlier this spring, maybe earlier than March 1, especially the tree on the corner of his house, because it wasn’t too clod in the winter down the valley, only a few days. He was working on his fence recently. His old fence poles were red wood and stood in the field over one hundred years. Some of the bottoms had been decayed.
Summary

1. Vaira’s Pressure may not work well because it is quite different from Tonzi’s.
2. Flux system worked well.
3. Soil CO2 profile system: didn’t make it at night because of the power drop. Already notice Ted and he will check on it. The 4^th channel under the tree didn’t work (-9999).
4. collected oak woody and grass samples in Tonzi f or Alex.
5. collected grass samples for grass LAI
6. measured soil moisture, dendrometer, and spectrometer

Vaira_Grass Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.7 v; 13.1 amps; 2.4 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	11:07:35
Path/File name	D:\Data\V06_040.flx D:\Data\VR060401100.raw
	mean	std		mean	std
w	0.23	0.292	Ts	21.873	1.677
u	-1.078	0.694	H2O	2.394	0.179
v	1.51	0.459	CO2	1.926	0.063

1. downloading data
2. check the fans of air temp. and relative humidity sensors at Vaira. Good!
3. Check CR23X with two multiplexers: “Busy with com”

Sys_vot = couldn’t check
PC_start = couldn’t check

1. 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, but the fence door wasn’t closed.
2. Panel and Batteries: 13.4 v; 0.0 amps; 5.0 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	12:34:19
Path/File name	D:\Data\T06_040.flx D:\Data\TW060401100.raw
	mean	std		mean	std
w	0.01	0.615	Ts	19.379	0.443
u	2.22	1.278	H2O	2.301	0.024
v	0.82	0.661	CO2	1.702	0.024

1. downloading data
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 10 psi.
N₂ 2000 psig; flow 10 psi.
Is the pump running‌ Yes.

1. close gate and set up fence.

Toniz_Floor Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.2 v; 8.0 amps; 1.7 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_040.flx D:\Data\TW060401100.raw
	mean	std		mean	std
w	0.30	0.239	Ts	19.55	0.491
u	0.34	0.53	H2O	2.22	0.133
v	0.9	0.349	CO2	1.918	0.95

1. downloading data
2. Check MD-9 system connections

CR23X3 – floor-Met
CR23X5 – soil CO₂ profile Good.
CR23X6 – tower-Met
CR10X2 – floor-Met
CR10X4 – sap-flow
CR10X7 – CO₂ profile
CR10X8 – wind profile

1. Soil CO₂ profile

Reading from datalogger

Panel temp		25.3
Battery voltage		13.77
CO2E_1	2826.2	TCE_1	15.1	CO2W_1	1158.2	TCW_1	21
CO2E_2	3877.2	TCE_2	20.7	CO2W_2	1700.3	TCW_2	13.8
CO2E_3	1880.0	TCE_3	15.4	CO2W_3	4885.6	TCW_3	13.8
CO2E_4	3970.0	TCE_4	10.8	CO2W_4	-9999	TCW_4	14.7

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	5640	1	2cm (1%)	2340	1
4cm	1650	2	4cm	1.20%	4
8cm	3830	3	8cm	3410	2
16cm	7140	4	16cm	197%	3

1. Close gate and set up fence.

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
D040
10-Feb-06	SM
0-15	39.9	37.2	42.9	22.6	33.2	38.6	25.5	24.7	21.3
15-30	39.0	41.1	39.5	39.7	26.3	39.7	28.8	33.5	20.2
30-45	37.7	42.2	41.3	37.9	32.9	43.2	37.9	32.7	33.8
45-60	40.1	54.5	55.4	43.1	32.0	39.8	43.4	44.2	31.2
	A6D882B	A3D04E8	A6D72F5
0-15	35.7	31.8	21.0
15-30	28.2	29.4	31.4
30-45	34.3	35.4	34.6
45-60	41.2	46.2	44.8
vaira	57318a	7933dee
0-15	21.5	24.9
15-30	26.4	33.6
30-45	27.8	33.9
45-60	31.5	33.4

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
2/10/2006	40	71	22.3
		72	23.3
		77	Broken
		78	Broken
		79	22.9
		245	20.2
		248	24.0
		250	21.9
		255	22.9
		‌252‌	missing
		102	Broken

Sample sheet for MIBA

Sample vial	What
MIBA-US-01._-	Leave 1
MIBA-US-01.__-	Leave 2
MIBA-US-01. ___149_	Grass 1
MIBA-US-01. __150	Grass 2
MIBA-US-01. _-	Surface Litter
MIBA-US-01. _151_	Soil in 10 cm
MIBA-US-01. _152	Stem 1
MIBA-US-01. _153_	Stem 2