When: Date: july 6, 2007 , Day: 187 , Watch Time: 0800 .
Where: Tonzi/Vaira Ranch
Who: ddb
Weather humid and overcast, was extremely hot the previous day and was hot this am and wil clear. Were Thunderstorms over the Sierra Nevada Mtn last night
Phenology grass dead
Vaira_Grass Site

1. Fence and gate power: v. ok
2. Panel and Batteries: 12.9 v; 7 amps; 2.2 amps.

Dusted off solar panel.

1. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Time	0700
Path/File name	D:\Data\V07_ .flx D:\Data\VR07 187 .raw
	mean	std		mean	std
w	0.04		Ts	28.9
u	-1.2		H2O	2.41
v	.74		CO2	1.69

1. downloading data

downloaded data.

1. swaping Li-7500 Analyzer. (Remove SN# ; install SN# )
2. check the fans of air temp. and relative humidity sensors at Vaira.

Ok fan, Tair 27.1; rh 33.9%

1. Check MD-9 system connections
2. Check CR23X with two multiplexers

Sys_vot =
PC_start =

1. Check levels of Radiation sensors, clear up surfaces.

9. Closed gate and set up fence. ok

Tonzi_Tower Site

1. Fence and gate power: v.
2. Panel and Batteries: v; amps; 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	0801
Path/File name	D:\Data\T07_ .flx D:\Data\TW07 .raw
	mean	std		mean	std
w	-.02		Ts	28.2
u	.88		H2O	2.58
v	1.1		CO2	1.76

1. downloading data
2. swaping Li-7500 Analyzer. (Remove SN# ; install SN# )
3. check the fans of air temp. and relative humidity sensors on the tower and the floor.
4. Check calibration cylinders;

CO₂ 1000 psig; flow psi.
N₂ 700 psig; flow psi.
Looks like N2 was not flowing. Cal zero was at 409 ppm. Opened up the valve to produce more dry air flow for future calibrations.

The CO2 scrubber on the N2 bottle needs re-charging!! Looks old and wet.

Checked filters on CO2 inlets at bottom 2 levels. Look clean.

Manually calibrate Li-800. Following Ted’s instruction: H:\IoneSavanna_2004\Tower_2004\CO2Profile\LI800_Calibration_Procedure_2Nov04.txt
CO2 is on the order of 389 and 390; Pressure was 972

Is the pump running‌ Ok

Tram is moving. Cleaned off dust from Rn and Par sensor.

1. close gate and set up fence.

Toniz_Floor Site

1. Fence and gate power: v.
2. Panel and Batteries: 12.9 v; 7.9 amps; 3.1 amps.

Load seemed high, but found screen on on the flux system. When it was turned off the load pull dropped to 2.2.

Notice one of the batteries had overflowed and was black.

1. 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\F07_ .flx D:\Data\FL07 .raw
	mean	std		mean	std
w	-0.14		Ts	28.1
u	-1.19		H2O	4.01
v	.28		CO2	1.39

1. voltage on Q is very high. We need to check out the LI 7500.
3. downloading data
4. swaping Li-7500 Analyzer. (Remove SN# ; install SN# )

1. Check MD-9 system connections

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

Had problem talking to CR dataloggers. Found that CR23X5 was dead. Had died around 0200 that day.

The CO2 values of the soil probes look good though.
Reading from datalogger

Panel temp
Battery voltage
CO2E_1		TCE_1		CO2W_1		TCW_1
CO2E_2		TCE_2		CO2W_2		TCW_2
CO2E_3		TCE_3		CO2W_3		TCW_3
CO2E_4		TCE_4		CO2W_4		TCW_4

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	560	1	2cm (1%)	950	1
4cm	650	2	4cm	4400	4
8cm	840	3	8cm	2710	2
16cm	1090	4	16cm	1150	3

1. Looks like lots of CO2 production in root zone!!
3. Close gate and set up fence.

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
1/24/2006	24	71	22.7
		72	23.3
		77	Broken
		78	Broken
		79	22.9
		245	20.3
		248	24.2
		250	21.7
		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. ____	Grass 1
MIBA-US-01. __	Grass 2
MIBA-US-01. __	Soil in 10 cm
MIBA-US-01. ___	Stem 1
MIBA-US-01. __	Stem 2