When: Date: 1/19/2009 , Day: 19 , Watch Time: 10:30am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe
Weather: partially clear
Phenology: green grass, one leaf yellow maybe due to the dry condition, grass density at Tonzi = (274+186+164)/3/400cm2
Summary

1. Always bring an extra set of Li-7500, in case something goes wrong.
2. swap Li-7500 on Vaira,
3. check and download data at Tower, Floor (Tz2_221, ALL_212), and Vaira (Met, D229-244)
4. correct PC and datalogger time with GPS at tower and floor sites.
5. grass sample for LAI and phenology in Tower and Vaira, oak branches for N
6. (soil moisture) machine sent back to company for calibration
7. dendrometer
8. spectrometer
9. oak woody and grass samples in Tonzi (Alex). No litter sample anymore according to Alexander’s notice. (sampling frequency: once a month). Labeling starts from MIBA-US-03-193. (Oct.)

Vaira_Grass Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.2 v; 10 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
Path/File name	D:\Data\V09_ 019 .flx D:\Data\VR09 .raw
	mean	std		mean	std
w	0.1	0.279	Ts	20.318	0.575
u	0.74	0.439	H2O	1.947	0.074
v	1.42	0.417	CO2	1.982	0.003

1. no TC installed.
2. downloading data YES!
3. check the fans of air temp. and relative humidity sensors at Vaira. YES!
4. Check MD-9 system connections YES!
5. Check CR23X with two multiplexers

Sys_vot = 13.24
PC_start =

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

9. Closed gate and set up fence. YES!

Tonzi_Tower Site

1. Fence and gate power: OK v.
2. Panel and Batteries: v; amps; amps.OK
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Time	OK
Path/File name	D:\Data\T06_ .flx D:\Data\TW06 .raw
	mean	std		mean	std
w			Ts
u			H2O
v			CO2

1. downloading data YES!
2. swaping Li-7500 Analyzer. (Remove SN# 418 ; install SN# 73 )

swapped IRGA because the H2O and CO2 channels looked spiky.

1. check the fans of air temp. and relative humidity sensors on the tower and the floor.
2. Check calibration cylinders;

CO₂ 500 psig; flow 20 psi.
N₂ 1500 psig; flow 20 psi.
Manually calibrate Li-800. Following Ted’s instruction: H:\IoneSavanna_2004\Tower_2004\CO2Profile\LI800_Calibration_Procedure_2Nov04.txt
Is the pump running‌ Dead when we got there. Joe swapped another one, and then it worked well. Li-800 was calibrated it manually in the field.

1. close gate and set up fence. YES!

Toniz_Floor Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.6 v; 18.7 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
Path/File name	D:\Data\F09_ 019 .flx D:\Data\FL09 .raw
	mean	std		mean	std
w	-0.31	0.254	Ts	16.8	0.294
u	-0.52	0.38	H2O	1.5	0.0511
v	0.49	0.298	CO2	2.1	0.009

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

CR23X3 – floor-Met
CR23X5 – soil CO₂ profile

CR23X6 – tower-Met – No data recorded since Day 331, 7:30am, 2008. Seems the datalogger was dead for no reason. Joe swapped another 23X datalooger and it worked well.

CR10X2 – floor-Met
CR10X4 – sap-flow
CR10X7 – CO₂ profile
CR10X8 – wind profile

1. Soil CO₂ profile OK!

Reading from datalogger

Panel temp		24
Battery voltage		13.5
CO2E_1	387	TCE_1	13.8	CO2W_1	743	TCW_1	15.4
CO2E_2	521	TCE_2	12.1	CO2W_2	712	TCW_2	14.8
CO2E_3	867	TCE_3	12.1	CO2W_3	1172	TCW_3	18.4
CO2E_4	774	TCE_4	8.8	CO2W_4	1447	TCW_4	11.5

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)		1	2cm (1%)		1
4cm		2	4cm		4
8cm		3	8cm		2
16cm		4	16cm		3

1. Close gate and set up fence.

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
1/19/2009	19	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-01.178	Leave 1
MIBA-US-01. 179	Leave 2
MIBA-US-01. 180	Grass 1
MIBA-US-01. 181	Grass 2
MIBA-US-01. 182	Soil in 10 cm
MIBA-US-01. 183	Stem 1
MIBA-US-01. 184	Stem 2