Field Notes

<--2013-02-27 10:30:00 | 2013-03-13 10:00:00-->
Other sites visited today: Vaira | Tonzi
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Tonzi: 2013-03-13 09:00:00 (DOY 72)
Author: Siyan Ma
Others: Joe

Summary: Standard field work.

When: Date: 3/13/2013 , Day: 072 , Watch Time: 9:00 am .
Where: Tonzi/Vaira Ranch
Who: Siyan Joe
Weather: sunny, warm
Phenology:

Figure 1. no-leaf on oak trees, but Joe found two ‘evergreen’ oak trees near the soil CO2 fencing area. Shrubs had new leaves. About 11 cows around.

Figure 2. notice difference in grass appearance between those in and out fence at Vaira. About 40 cows around the water hole.

Summary

Checked and downloaded data from PC at Tower, Floor. At Floor, 10Hz raw data recorded by PC WinFlux had naming problem, skipping Day 60. Would check next visit. Others worked well.
Joe downloaded data at Vaira and got screen shops by connecting to each datalogger directly.
Joe swapped memory cards of CR1000s at three sites.
Joe upgraded Tower PC, replacing PC208W with LoggerNet. So, PC can talk to CR1000.
Calibrated CO2 profile system; Zero and span seemed not stable.
Collected grass at Vaira in and out of fence to check grazing effects
Read dendrometers
Measured soil moisture
Measure groundwater well:

Date	DOY	Location	Depth without the black thing (feet)
3/13/2013	72	Floor	26.3
		Tower	31.6
		Roadside	36.6

Vaira_Grass Site

Fence and gate power: 12 v.
Panel and Batteries: - v; - amps; - amps.
Joe downloaded data at Vaira and got screen shops by connecting to each datalogger directly and swapped the memory cards of CR1000.

Screen shot of Vaira flux data logger table

Check the fans of air temp and relative humidity sensors at Vaira. YES!
Met data

Screen shot of Vaira met data logger table

soil CO2 profile data

Screen shot of Vaira soil co2 data logger table

Check levels of Radiation sensors, clear up surfaces.YES!
Check rain gage, make sure not clogged. No!
Closed gate and set up fence. YES!
Collected grass at Vaira in and out of fence to check grazing effects

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

Screen shot of tower flux data logger table

downloading data from PC.
Swapped the memory cards of CR1000.
check the fans of air temp. and relative humidity sensors on the tower and the floor. Tower top not running
Check rain gage, make sure not clogged. YES!
Check calibration cylinders;

CO₂ 200 psig; flow 20 psi; 421.63 ppm.
N₂ 500 psig; flow 20 psi.
Is the pump running‌ YES!

Screen shot of Li-800 calibration pre-cal

IRGA Calibration
zero
Screen shot of Li-800 calibration zero pre-cal

Screen shot of Li-800 calibration zero post-cal

span

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.)

Floor Gill sonic plots screen before downloading data

downloading data from PC. YES!
Swapped the memory cards of CR1000.
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
Dendrometer

Date	Day	Tag #	Reading (mm)
3/13/2013	72	1	24.1
		2	18.1
		3	20.5
		4	4.5
		5	24.1
		7	17.5
		8	8.8
		72	14
		79	14.2
		102	16
		245	12

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
3/13/2013	72
	sm
0-15	30.0	13.2	37.6	14.4	16.6	21.2	21.2	14.7	14.1
15-30	34.0	22.5	28.3	31.6	25.1	19.4	27.1	28.9	14.8
30-45	40.3	37.4	38.8	38.4	45.2	20.9	26.2	31.0	30.7
45-60	37.3	54.3	63.5	45.4	39.7	25.9	37.4	45.1	25.9

	A6D882B	A3D04E8	A6D72F5

0-15	22.0	20.0	13.3
15-30	25.2	10.0	26.1
30-45	32.7	31.0	32.7
45-60	40.8	48.0	48.7

vaira	7933dee	00000128B97F3	00000128B8072	00000128BDDE8
0-15	7.7	13.95	7.1	4.35
15-30	20.0	17.15	10.0	11.95
30-45	21.2	10.6	13.9	19.7
45-60	33.6	20.05	12.5	23.5

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2013-03-13	TZ_floor	26.3
2013-03-13	TZ_road	36.6
2013-03-13	TZ_tower	31.6

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)
2013-03-13	1	24.1
2013-03-13	102	16
2013-03-13	2	18.1
2013-03-13	245	12
2013-03-13	3	20.5
2013-03-13	4	4.5
2013-03-13	5	24.1
2013-03-13	7	17.5
2013-03-13	72	14
2013-03-13	79	14.2
2013-03-13	8	8.8