Field Notes

<--2013-07-28 10:30:00 | 2013-08-13 10:15:00-->
Other sites visited today: Vaira | Tonzi
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Tonzi: 2013-08-13 09:15:00 (DOY 225)
Author: Siyan Ma
Others: Joe

Summary: Standard field work, swapped Vaira 7500, fixed minor problems with VR HMP45 solar shield and LI820, midday water potential

When: Date: 8/13/2013 , Day: 225 , Watch Time: 9:15 am .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: clear, hot and dry, nice breeze
Phenology: yellow grasses; green oak trees; more yellow oak leaves at Tonzi than at Vaira; no cows at both sites

Summary

Joe checked and downloaded data from PC and swapped memory cards of CR1000s at Tower, Floor, and Vaira.
Swapped IRGA at Vaira 0418 on, 0042 off
Measured midday water potential of oak leaves and pine needles.
Read dendrometers
Measured soil moisture
Measure groundwater well:

Date	DOY	Location	Depth without the black thing (feet)
8/13/2013	255	Floor	30.2
		Tower	35.8
		Roadside	38.4

Vaira_Grass Site

Fence and gate power: 12 v.
Panel and Batteries: - v; - amps; - amps.
Joe checked and downloaded data from PC and swapped the memory card of CR1000
Joe reinstalled the fan and layers of temperature enclose.
Swapped IRGA: off #42; on #418.
Check levels of Radiation sensors, clear up surfaces.YES!
Check rain gage, make sure not clogged. YES!
Closed gate and set up fence. YES!

Screen shot of Vaira met data logger table

Screen shot of Vaira soil co2 data logger table

Screen shot of Vaira flux data logger table

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 â€“ 5 v.)

Tower Gill sonic plots screen before downloading data

Screen shot of tower flux data logger table

Joe checked and downloaded data from PC and swapped the memory card of CR1000.
Check rain gage, make sure not clogged. YES!
Joe checked and calibrated the CO2 profile system;

Screen shot of Li-800 calibration pre-cal

Screen shot of Li-800 calibration span pre-cal

Screen shot of Li-800 analog outputs settings

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 â€“ 5 v.)

Floor Gill sonic plots screen before downloading data

Screen shot of floor flux data logger table

Joe checked and downloaded data from PC and swapped the memory card of CR1000.
Check MD-9 system connections YES!

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)
8/13/2013	255	79	17.2
		72	15
		245	13.1
		102
		1	25.1
		5	24.5
		3	20.5
		2	17.5
		8	8.5
		7	17
		4	3.6

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2013-08-13	TZ_floor	30.2
2013-08-13	TZ_road	38.4
2013-08-13	TZ_tower	35.8

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)
2013-08-13	1	25.1
2013-08-13	2	17.5
2013-08-13	245	13.1
2013-08-13	3	20.5
2013-08-13	4	3.6
2013-08-13	5	24.5
2013-08-13	7	17
2013-08-13	72	15
2013-08-13	79	17.2
2013-08-13	8	8.5

Water Potential - mode: raw

Time	Species	Tree	readings (bar)
2013-08-13 12:00:00	OAK	102	-33.5	-25
2013-08-13 12:00:00	OAK	35	-31.5	-30	-12
2013-08-13 12:00:00	OAK	92	-30	-20	-26.5
2013-08-13 12:00:00	PINE	OLD	-21	-20	-7
2013-08-13 12:00:00	PINE	YNG	-21.5	-16	-6