Field Notes

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Tonzi: 2012-03-02 11:00:00 (DOY 62)
Author: Siyan Ma
Others: Sonia, Matthias

Summary: Sonia and Matthias choose location for LIDAR, cows in Viara cow fence, diffuse radiations stablized, 3rd soil co2 profile installed at Tonzi.

When: Date: 3/2/2012 , Day: 62 , Watch Time: 11:00 am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Sonia, and Matthias
Weather: clear, sunny
Phenology: grasses looked greener; lots of dry litters in fenced areas; no oak leaves yet

Tonzi:

Vaira:

Summary

Sonia and Matthias came along to find locations for install their LIDAR experiment.
Cows went into the inside of the fence at Vaira. Diffusion radiation sensor needs to be stabilized and leveled. See the photos. Matthias and Sonia helped to fix it temporarily in the field.
The third set of soil CO2 profile system was install at Tonzi on Feb. 23, 2012. The set includes one enclosure, 1 CR10X datalogger, 3 transmitters, 3 Vaisala CO2 probes, and 3 thermal couples (see the photo above). The wire for 24v was connected to the power regulator in the enclosure under the tree; the other wire was connected to the battery of the fence for 12v.
checked and downloaded data at Tower, Floor, and Vaira
Calibrated Li-800 in the field.
Read dendrometers
Measured soil moisture
Measure groundwater well:

Date	DOY	Location	Depth without the black thing (feet)
3/2/2012	62	Floor	29.7
		Tower	39.9
		roadside	40.0

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.)

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

Soil CO2 profile system: set COM1 and talked to the datalogger from the PC.

Screen shot of soil co2 data logger table

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

Cows went into the inside of the fence at Vaira. Fence seems working. Diffusion radiation sensor needs to be stabilized and leveled. See the photos. Matthias and Sonia helped to fix it temporarily in the field.

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 1600 psig; flow 20 psi; 421.63 ppm.
N₂ 2100 psig; flow 20 psi.
Manually calibrate Li-800. Following Ted’s instruction: H:IoneSavanna_2004Tower_2004CO2ProfileLI800_Calibration_Procedure_2Nov04.txt
Is the pump running‌ YES, but paused once in a while
Screen shot of Li-800 calibration pre-cal

Screen shot of Li-800 calibration pre-cal

Screen shot of Li-800 calibration zero pre-cal

Screen shot of Li-800 calibration span pre-cal

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
CR10X2 – floor-Met
CR23X6 – tower-Met
CR23X5 – soil CO₂ profile
CR10X17-sapflow

Screen shot of sap flow data logger table

Screen shot of soil co2 data logger table

Screen shot of tower met data logger table

Screen shot of floor met data logger table

Screen shot of soil moisture data logger table

Soil CO₂ profile:

Reading from datalogger

Reading from panels of analyzers

depth	Open	Tree	Tree2
2cm (1%)	1010	940	2140
4cm	1250	2600	1060
8cm	970	5440	0.55%

The third set of soil CO2 profile system – Tree2: installed near Liukang’s tree at Tonzi site on Feb. 23, 2012.
The set includes one enclosure, 1 CR10X datalogger, 3 transmitters, 3 Vaisala CO2 probes, and 3 thermal couples (see the photo above). The wire for 24v was connected to the power regulator in the enclosure under the tree; the other wire was connected to the battery of the fence for 12v.
Vaisala CO2 probes installed at the “Tree2” site:
%probe1, 2cm, SN# X1920001, 0...1%, intercept1, -.3381, slope1, 0.19982
%probe2, 4cm, SN# Y2009109,0...1%intercept2,44.5972,slope2,0.19478
%probe3, 8cm, SN# F4960019, 0…3%,intercept3,22.2534,slope3,0.06658

Close gate and set up fence. YES

Dendrometers

Tonzi
Dendrometer

Date	Day	Tag #	Reading (mm)
3/2/2012	62	72	8.6
		79	7.1
		102	9.5
		245	20.9
		250		(reset to 10.5 on May 7, 2009)
		1
		2
		3
		4	19.7
		5
		7	15.4	133
		8	6.9	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

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
3/2/2012	62
	sm
0-15	31.2	24.0	39.9	27.8	32.1	20.9	27.3	20.6	17.1
15-30	29.9	30.4	34.9	38.9	38.4	22.5	33.2	31.3	9.7
30-45	29.2	25.1	40.1	42.6	45.2	17.9	30.7	31.8	22.9
45-60	41.4	5.5	50.9	47.9	11.1	17.6	42.5	40.8	13.5

	A6D882B	A3D04E8	A6D72F5

0-15	28.6	25.6	19.1
15-30	26.1	17.0	31.0
30-45	33.7	34.1	35.2
45-60	39.8	47.1	43.4

vaira	57318a	7933dee	00000128B97F3	00000128B8072	00000128BDDE8
0-15	broken	35.8	27.3	3.6	6.8
15-30	broken	32.3	30.1	20.3	23.1
30-45	broken	32.4	12	31.0	30
45-60	broken	43.1	24.8	21.3	30.2