Field Notes

<--2010-09-10 12:00:00 | 2010-10-07 11:30:00-->
Other sites visited today: Tonzi | Vaira

Tonzi: 2010-10-07 10:00:00 (DOY 280)
Author: Siyan Ma
Others: Joe, Sonia

Summary: Show Sonia the towers, swap LI7500s, standard field work.

When: Date: 10/07/2010 , Day: 280 , Watch Time: 10:00 am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe, Sonia (visitor)
Weather: nice breeze, high while cloud
Phenology: yellow grass litters, 10-30% oak leaf yellow; some drops of rain but no greass germination yet.
Photos: (128.32.27.89):\Ione_Savanna\Field_Notes\Year2010\photos_20101007\
Summary:

swap Li-7500 at Vaira, tower, and floor
check and download data at Tower, Floor, and Vaira
Calibrate Li-800 in the field.
midday leaf water potential and sample of oak leaves and pine needles
dendrometer
soil moisture
groundwater well

Date	DOY	Location	Depth - nothe black thing (feet)
10/07/2010	280	Floor	28.04
		Tower	32.78
		roadside	36.90

Vaira_Grass Site

Fence and gate power: 12 v.
Panel and Batteries: - v; - amps; - amps.
Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Working well!

downloading data YES!
swaping Li-7500 Analyzer. (Remove SN# 1594 ; install SN# 418 )
Check the fans of air temp. and relative humidity sensors at Vaira. YES!
Check MD-9 system connections YES!
Check levels of Radiation sensors, clear up surfaces. YES!
Check rain gage, make sure not clogged. YES!
Closed gate and set up fence. YES!

Tonzi_Tower Site

Fence and gate power: 12 v.
Panel and Batteries: - v; - amps; - amps.
Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Working well!

downloading data YES!
swaping Li-7500 Analyzer. (Remove SN# 65 ; install SN# 73 )
check the fans of air temp. and relative humidity sensors on the tower and the floor. YES!
Check rain gage, make sure not clogged. YES!
Check calibration cylinders;

CO₂ 2000 psig; flow 22 psi. 384.08 ppm.
N₂ 1250 psig; flow 20 psi.
Manually calibrate Li-800. Following Ted’s instruction: YES!
Is the pump running‌ No, but Joe fixed it.

close gate and set up fence. YES!

Toniz_Floor Site

Fence and gate power: 12 v.
Panel and Batteries: 13.9 v; 15.0 amps; 2.0 amps.
Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

downloading data YES!
swaping Li-7500 Analyzer. (Remove SN# 41 ; install SN# 42 )
Check MD-9 system connections

CR23X6 – tower-Met

CR10X2 – floor-Met

CR23X3 – floor-Met

CR23X5 – soil CO₂ profile

Soil CO₂ profile

Reading from datalogger
Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	430	1	2cm (1%)	1090	1
4cm	520	2	4cm	1620	4
8cm	730	3	8cm	1600	2
16cm	550	4	16cm	3150	3

Close gate and set up fence.

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
10/7/2010	280
	sm
0-15	8.6	3.9	5.9	6.2	3.0	3.9	6.5	3.3	3.6
15-30	12.7	8.4	10.0	11.2	7.5	8.7	13.6	11.8	4.8
30-45	17.9	11.2	11.7	14.3	16.8	10.1	14.5	16.5	13.4
45-60	13.9	5.6	14.2	11.0	11.1	11.6	14.2	22.8	10.7

	A6D882B	A3D04E8	A6D72F5

0-15	6.5	1.5	3.1
15-30	6.0	1.7	14.6
30-45	16.2	14.8	12.0
45-60	16.2	19.2	4.4

vaira	57318a	7933dee
0-15	broken	0.3
15-30	broken	11.3
30-45	broken	15.3
45-60	broken	28.4

Tonzi
Dendrometer

Date	Day	Tag #	Reading (mm)
10/7/2010	280	72	11.5
		79	15.8
		245	12.3
		250	21.4	(reset to 10.5 on May 7, 2009)
		1	21.1
		2	9.9
		3	18.0
		4	8.2
		5	13.6
		7	15.1
		8	16.5	11828
		102	X
		71	X
		77	X	‌
		78	X	‌
		248	X	broken
		255	X	‌
		‌252‌	X	‌
		6	X