Field Notes

<--2012-02-01 09:00:00 | 2012-02-09 13:30:00-->
Other sites visited today: Vaira | Tonzi
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Tonzi: 2012-02-01 09:00:00 (DOY 32)
Author: Siyan Ma
Others: Joe

Summary: Standard field work, extended cow fence at Varia.

When: Date: 2/1/2012 , Day: 32 , Watch Time: 9:00 am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe
Weather: cloudy, wet ground
Phenology: senescent grass leaves due to drought; oak leaf-off; cows at Vaira

Tonzi

Vaira:

Summary

Joe extended the fence at Vaira for installation of soil CO2 profile system soon.
checked and downloaded data at Tower, Floor, and Vaira
Calibrated Li-800 in the field.
Collected grass samples for grass LAI
Read dendrometers
Measured soil moisture
Measure groundwater well:

Date	DOY	Location	Depth without the black thing (feet)
2/1/2012	32	Floor	29.4
		Tower	34.3
		roadside	38.0

Vaira_Grass Site

Fence and gate power: 12 v.
Panel and Batteries: 11.9 v; 4.9 amps; 4.6 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 YES!
Check the fans of air temp. and relative humidity sensors at Vaira. YES!
Check MD-9 system connections YES!
Check CR23X with two multiplexers : The PC couldn’t talked to the datalogger at the beginning. I reset the power of datalogger, and it worked normally.

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: 11.9 v; 0.0 amps; 6.4 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 1800 psig; flow 20 psi; 421.63 ppm.
N₂ 2000 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!
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 zero post-cal

Screen shot of Li-800 calibration span pre-cal

Screen shot of Li-800 calibration span post-cal

close gate and set up fence. YES!

Toniz_Floor Site

Fence and gate power: 12 v.
Panel and Batteries: power problem. Joe fixed.
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
CR23X6 – tower-Met
CR10X2 – floor-Met
Screen shot of tower met data logger table

Screen shot of soil moisture data logger table

Screen shot of floor met data logger table

Soil CO₂ profile:

CR23X5 – soil CO₂ profile: disconnected, bring the Vaisala CO2 probes back to the lab for calibration.

Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
2/1/2012	32
	sm
0-15	27.9	20.9	35.5	19.7	26.6	19.7	23.8	19.1	13.0
15-30	29.9	28.2	33.1	34.6	30.0	20.7	29.2	29.2	8.6
30-45	32.6	29.8	39.8	38.5	40.1	21.0	27.5	30.7	23.2
45-60	#DIV/0!	5.6	59.2	43.6	30.4	19.0	37.0	31.1	11.2

	A6D882B	A3D04E8	A6D72F5

0-15	28.2	23.2	16.8
15-30	24.3	14.2	29.2
30-45	34.2	30.9	32.0
45-60	36.7	45.8	35.7

vaira	57318a	7933dee	00000128B97F3	00000128B8072	00000128BDDE8
0-15	broken	26.9	22.15	5.8	4.6
15-30	broken	28.9	27.25	14.8	19.7
30-45	broken	30.4	11.05	24.7	27.5
45-60	broken	40.8	20.85	18.1	26.8

Tonzi
Dendrometer

Date	Day	Tag #	Reading (mm)
2/1/2012	32	72	7.2
		79	6.7
		102	9.4
		245	20.2
		250	X	(reset to 10.5 on May 7, 2009)
		1	17.4
		2	16.4
		3	14.8
		4	19.5
		5	X
		7	15.0	133
		8	6.6	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

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2012-02-01	TZ_floor	29.4
2012-02-01	TZ_road	38
2012-02-01	TZ_tower	34.3

No TZ Moisture Point data found

No VR Moisture Point data found

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2012-02-01	1	17.4
2012-02-01	102	9.4
2012-02-01	2	16.4
2012-02-01	245	20.2
2012-02-01	3	14.8
2012-02-01	4	19.5
2012-02-01	7	15
2012-02-01	72	7.2
2012-02-01	79	6.7
2012-02-01	8	6.6