Field Notes

<--2012-10-24 11:30:00 | 2012-11-07 11:00:00-->
Other sites visited today: Tonzi | Vaira
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Tonzi: 2012-11-07 09:30:00 (DOY 312)
Author: Siyan Ma
Others: Joe

Summary: Swapped Floor 7500, reinstalled LI800, reinstalled SHF plates, Standard fieldwork.

When: Date: 11/07/2012 , Day: 312 , Watch Time: 9:30 am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe
Weather: clear, sunny
Phenology: grasses came out, about 2~4cm; green/yellow/brown oak leaves still on the trees, but pretty much done.

Summary

checked and downloaded data at Tower, Floor, and Vaira
Swapped Li-7500 at Tonzi Floor site.
Joe put back Gashound gas analyzer and calibrated Li-800 in the field.
Joe reinstalled the soil heat flux plate pulled out for calibration at Tonzi and Vaira. I cleaned up the surface grass litter to estimate litter effects.
Read dendrometers
Measured soil moisture
Measure groundwater well:

Date	DOY	Location	Depth without the black thing (feet)
11/07/2012	312	Floor	30
		Tower	34.9
		roadside	38.8

Vaira_Grass Site

Fence and gate power: 12 v. (Joe tried fixing the broken lower wire of the fence, but somehow the wire might be tangled somewhere by cows.)
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

Screen shot of Vaira flux data logger table

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

Screen shot of Vaira met data logger table

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.)

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

After zeroing
Screen shot of Li-800 calibration zero post-cal

Before spanning
Screen shot of Li-800 calibration span pre-cal

After spanning
Screen shot of Li-800 calibration span post-cal

downloading data Windflux wasn’t working from last visiting. PC was stuck when it restarted, asking for permission to restart. Good news is that we have CR1000 to record 10Hz data.
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 psig; flow 20 psi; 421.63 ppm.
N₂ 1000 psig; flow 20 psi.
Is the pump running‌ Joe put back Gashound gas analyzer and calibrated Li-800 in the field.

close gate and set up fence. YES!

Toniz_Floor 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.)
Swapped LI7500 0073 off, 0976 on

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
Soil CO₂ profile: CR23X5 – soil CO₂ profile
Screen shot of soil moisture data logger table

Screen shot of floor met data logger table

Screen shot of soil co2 data logger table

Screen shot of tower met data logger table

Screen shot of sap flow data logger table

Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
11/7/2012	312
	sm
0-15	12.0	4.8	30.3	13.0	11.1	5.2	11.4	39.9	7.9
15-30	12.3	7.1	11.4	14.5	12.4	9.5	17.3	13.5	2.4
30-45	18.4	11.9	11.6	16.7	8.1	9.7	13.4	16.4	13.1
45-60	41.4	1.5	19.1	12.5	#DIV/0!	10.8	12.9	21.0	9.9

	A6D882B	A3D04E8	A6D72F5

0-15	15.7	10.9	7.3
15-30	12.1	2.9	12.1
30-45	14.5	13.9	14.3
45-60	14.1	15.8	10.6

vaira	57318a	7933dee	00000128B97F3	00000128B8072	00000128BDDE8
0-15	removed	0.9	11.466667	6.4	2.7333333
15-30	removed	12.3	8.9	9.2	8.9
30-45	removed	13.1	1.9666667	9.6	13.133333
45-60	removed	23.8	14.566667	7.9	15.2

Tonzi
Dendrometer

Date	Day	Tag #	Reading (mm)
11/07/2012	312	1	22.7
		2	15.8
		3	18.7
		4	4
		5	24.1
		7	16.1
		8	8
		72	12.3
		79	11.9
		102	14.1
		245	10.9

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

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2012-11-07	TZ_floor	30
2012-11-07	TZ_road	38.8
2012-11-07	TZ_tower	34.9

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)
2012-11-07	1	22.7
2012-11-07	102	14.1
2012-11-07	2	15.8
2012-11-07	245	10.9
2012-11-07	3	18.7
2012-11-07	4	4
2012-11-07	5	24.1
2012-11-07	7	16.1
2012-11-07	72	12.3
2012-11-07	79	11.9
2012-11-07	8	8