When: Date: 3/21/2010 , Day: 80 , Watch Time: 11:30 .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: Sunny, warm, nice breeze
Phenology: grasses grew well; white flowers; oak leaves came out 100%
Summary

1. swap CR10X for the new understory met
2. tram was working well.
3. swap the shield with fan for Ta&Rh sensor at Vaira
4. check and download data at Tower, Floor, and Vaira
5. Calibrate Li-800 in the field: bump wasn’t on, but it went back to work after I gave it a click.
6. collected samples of grasses, oak leaves and pin needles
7. dendrometers
8. spectrum
9. soil moisture
10. groundwater well:

Date	DOY	Location	Depth from the black thing (feet)
8/23/2010	80	Floor	23.75
		Tower	27.05
		roadside	32.00

Vaira_Grass Site

1. Fence and gate power: 12 (was not on) v.
2. Panel and Batteries: 13.5 v; 14.6 amps; 3.6 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

1. downloading data
2. Check the fans of air temp. and relative humidity sensors at Vaira. YES!
3. Check MD-9 system connections YES!
4. Check CR23X with two multiplexers

1. Check levels of Radiation sensors, clear up surfaces.YES!
2. Check rain gage, make sure not clogged. YES!
3. Closed gate and set up fence. YES!

Tonzi_Tower Site

1. Fence and gate power: 12, was not on v.
2. Panel and Batteries: 13.9 v; 0.0 amps; 4.5 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

1. downloading data YES!
2. check the fans of air temp. and relative humidity sensors on the tower and the floor. YES!
3. Check rain gage, make sure not clogged. YES!
4. Check calibration cylinders;

CO₂ 900 psig; flow 20 psi; 418.8 ppm.
N₂ 600 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 No. Pump was not on. It ran after I clicked it.
Zero may be 8.0 ppm off.

before zero
Take a long time to zero


after zero

before span

span with CO2=418.8 ppm
after span

1. close gate and set up fence. YES!

Toniz_Floor Site

1. Tram is running well.
2. swap the CR10X for the new understory Ta&Rh. The old understory Ta&Rh system: shield broken, no fan on.
3. Fence and gate power: 12 v.
4. Panel and Batteries: 14.0 v; 11.9 amps; 1.9 amps. (about 7:00 am local time)
5. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

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

CR23X3 – floor-Met


CR23X5 – soil CO₂ profile

CR23X6 – tower-Met


CR10X2 – floor-Met

1. Soil CO₂ profile: no power when I got there. I unplug and re-plug fuses, then the system back to work.

Reading from datalogger

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. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
3/21/2010	80
	DDB
0-15	42.0	21.2	39.9	31.7	34.6	32.3	22.3	22.3	17.9
15-30	40.2	40.8	31.0	37.1	38.7	27.7	28.0	30.7	20.3
30-45	43.0	45.8	39.6	38.5	45.9	32.4	30.4	34.1	34.6
45-60	40.2	66.9	41.4	49.4	43.1	34.8	40.8	47.7	31.1
	A6D882B	A3D04E8	A6D72F5
0-15	22.3	16.8	21.7
15-30	27.1	21.3	32.3
30-45	35.4	39.4	34.1
45-60	43.7	48.3	50.6
vaira	57318a	7933dee
0-15	23.1	20.0
15-30	24.2	28.5
30-45	25.0	35.1
45-60	35.3	33.7

Tonzi
Dendrometer
Date	Day	Tag #	Reading (mm)
3/21/2010	80	72	10.4
		79	6.9
		102	X
		245	10
		250	20.3	(reset to 10.5 on May 7, 2009)
		1	17.6
		2	9.9
		3	15.3
		4	7
		5	11.5
		7	14.9	133
		8	7	11828
		71	X
		77	X	‌
		78	X	‌
		248	X	broken
		255	X	‌
		‌252‌	X	‌
		6	X

Notes: “X” means not working any more.
Dendrometers installed by Gretchen group