Field Notes

<--2011-11-16 12:00:00 | 2011-12-01 10:00:00-->
Other sites visited today: Twitchell Rice | Tonzi | Vaira
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Tonzi: 2011-12-01 09:00:00 (DOY 335)
Author: Siyan Ma
Others: Joe, Laurie, Erika

Summary: Standard field work. Laurie and Erika tried soil cores and tree cores.

Pond When: Date: 12/1/2011 , Day: 335 , Watch Time: 9:00 am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe, Laurie, and Erica
Weather: windy
Phenology: green grass, oak leaves totally fell at Tonzi.

Vaira:

Summary

checked and downloaded data at Tower, Floor, and Vaira
Calibrated Li-800 in the field.
collect grass sample for LAI.
Read dendrometers
Measured soil moisture
Measure groundwater well:

Date	DOY	Location	Depth without the black thing (feet)
12/012011	335	Floor
		Tower
		roadside

Vaira_Grass Site

Fence and gate power: - v. it is working.
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.)

Vaira Gill sonic plots screen before downloading data

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

Check levels of Radiation sensors, clear up surfaces.No!
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.)

Tower Gill sonic plots screen before downloading data

downloading data YES!
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 300 psig; flow 20 psi; 384.08 ppm.
N₂ 1000 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 YES!
Screen shot of Li-800 calibration pre-cal

Screen shot of Li-800 calibration pre-cal
Before zero

After zero

Before span

After span

close gate and set up fence. YES!

Toniz_Floor Site

Fence and gate power: 12 v.
Panel and Batteries: - v; - amps; - amps. (about 7:00 am local time)
Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

Floor Gill sonic plots screen before downloading data

downloading data YES!
Check MD-9 system connections YES!

CR23X3 – floor-Met
CR23X5 – soil CO₂ profile
CR23X6 – tower-Met
CR10X2 – floor-Met
Screen shot of soil co2 data logger table

Screen shot of floor met data logger table

Screen shot of soil moisture data logger table

Screen shot of tower met data logger table

Screen shot of sap flow data logger table

Soil CO₂ profile:

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

Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
12/1/2011	335
	sm
0-15	13.4	7.6	#DIV/0!	12.4	13.8	11.8	16.4	11.1	7.6
15-30	14.4	11.2	26.8	17.8	16.0	13.3	19.7	19.1	4.5
30-45	20.0	12.0	11.5	15.4	9.7	10.5	14.8	17.5	14.4
45-60	#DIV/0!	3.9	14.1	12.0	24.4	11.5	13.5	22.4	10.7

	A6D882B	A3D04E8	A6D72F5

0-15	17.5	12.4	7.0
15-30	17.2	5.4	16.0
30-45	18.0	17.1	14.3
45-60	15.8	18.5	9.6

vaira	57318a	7933dee	00000128B97F3	00000128B8072	00000128BDDE8
0-15	broken	9.4	13.8	4.0	2.85
15-30	broken	19.0	14.2	12.6	11.55
30-45	broken	19.4	4.9	13.3	17.05
45-60	broken	29.9	15.45	8.8	16.65

Tonzi
Dendrometer

Date	Day	Tag #	Reading (mm)
12/1/2011	335	72	6.2
		79	6.2
		102
		245
		250		(reset to 10.5 on May 7, 2009)
		1	17.0
		2	14.6
		3	12.8
		4	18.5
		5	23.6
		7	14.1	133
		8	6.1	11828
		71	X
		77	X	‌
		78	X	‌
		248	X	broken
		255	X	‌
		‌252‌	X	‌
		6	X