When: Date: 12/7/2006 , Day: 341 , Watch Time: 9:40am .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: clear, a few white, light clouds, very foggy on Hwy 4
Phenology: grass germination, 3-4cm tall in Varia, 1-3cm tall in Tonzi. Oak leaves have fallen off. Grass didn’t change very much since last visit.
Summary

1. check and download data at Tower, Floor, and Varia. EC systems worked well. Power looks OK in three sites.
2. grass sample for LAI and phenology in Vaira and Tonzi. Try to quantify litter-mass.
3. Measured groundwater, dendrometer, and spectrometer. Dendrometers need reset because some have been out of range!!!

Groundwater:
roadside 36.58 ft
tower 31.92 ft
understory 26.67 ft
Vaira_Grass Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 14.0 v; 14.1 amps; 3.5 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	09:58:40
Path/File name	D:\Data\V06_ 340 .flx D:\Data\VR06 3401200 .raw
	mean	std		mean	std
w	-0.2	0.534	Ts	16.25
u	-0.68	0.767	H2O	1.45	0.012
v	0.33	0.15	CO2	2.15	0.005
			TC	1.433	0.014

1. downloading data OK
2. check the fans of air temp. and relative humidity sensors at Vaira. OK
3. Check MD-9 system connections OK
4. Closed gate and set up fence. OK

Tonzi_Tower Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.3 v; 0.0 amps; 5.5 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	10:53:28
Path/File name	D:\Data\T06_ 340 .flx D:\Data\TW063410900 .raw
	mean	std		mean	std
w	0.05	0.036	Ts	19.8	0.512
u	3.04	0.686	H2O	2.98	0.024
v	0.08	0.509	CO2	2.36	0.023

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

CO₂ 1500 psig; flow 18 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 OK

1. close gate and set up fence. OK

Toniz_Floor Site

1. Fence and gate power: >12 v.
2. Panel and Batteries: 13.6 v; 16.7 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	11:48:10
Path/File name	D:\Data\F06_ 334 .flx D:\Data\FL06 3341300 .raw
	mean	std		mean	std
w	0.11	0.205	Ts	18.3	1.283
u	-0.80	0.833	H2O	1.93	0.037
v	0.52	0.225	CO2	1.984	0.037

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

CR23X3 – floor-Met
CR23X5 – soil CO₂ profile
CR23X6 – tower-Met
CR10X2 – floor-Met
CR10X4 – sap-flow
CR10X7 – CO₂ profile
CR10X8 – wind profile
Tz12 – sap-flow2: only one file (Day 334) downloaded to floor PC.

1. Soil CO₂ profile

Reading from datalogger

Panel temp		23.05
Battery voltage		13.52
CO2E_1	487	TCE_1	15.8	CO2W_1	337	TCW_1	21.04
CO2E_2	504	TCE_2	19.5	CO2W_2	495	TCW_2	15.83
CO2E_3	580.5	TCE_3	11.5	CO2W_3	788	TCW_3	13.51
CO2E_4	773.6	TCE_4	8.15	CO2W_4	923	TCW_4	14.84

1. soil moisture (TDR) wasn’t measured because I forgot loading the machine. Sorry.
2. Close gate and set up fence.

Tonzi
Dendrometer
Date	Day	Tag #	Reading (cm)
12/7/2006	341	71	22.5
		72	23.4
		77	Broken
		78	Broken
		79	23.3
		245	22.5
		248	24.9
		250	21.7
		255	20.5
		‌252‌	missing
		102	Broken

Sample sheet for MIBA

Sample vial	What
MIBA-US-03.-	Leave 1
MIBA-US-03.-	Leave 2
MIBA-US-03. _198_	Grass 1
MIBA-US-03. 199	Grass 2
MIBA-US-03. 200	Soil in 10 cm
MIBA-US-03. 201	Stem 1
MIBA-US-03. 202	Stem 2