Field Notes

<--2011-10-13 11:00:00 | 2011-10-18 09:30:00-->
Other sites visited today: Twitchell Rice | Mayberry | Vaira | Tonzi
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Tonzi: 2011-10-13 11:00:00 (DOY 286)
Author: Siyan Ma
Others: Joe

Summary: Grass is up, Vaira 7500 down and swapped with Frank's, Stardot camera added to Vaira, swapped co2 profile IRGA, EMI survey.

Pond When: Date: 10/13/2011 , Day: 286 , Watch Time: 11:00 am
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe
Weather: hot, nice breeze
Phenology: grass has germinated, ~3 cm high; green oak leaves

Tonzi

Vaira:

Summary

Midday leaf water potential: oak leaf ~= -30 bar; pin needle~=-13 bar.
checked and downloaded data at Tower, Floor, and Vaira
Li-7500 at Vaira was dead when we got there. Swapped with Frank?s set for short time. Joe will swap a new next Tue.
Joe installed a new CO2 analyzer for the CO2 profile system. Because the Li-800 software could not talk to the new machine, calibrated in the field was not done this time.
Collected samples of oak leaves and pin needles
Read dendrometers
Measured soil moisture
Measure groundwater well:

Date	DOY	Location	Depth without the black thing (feet)
10/13/2011	286	Floor	26.1
		Tower	30.7
		roadside	35.4

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.) Li-7500 doesn?t work!

Li-7500 at Vaira was dead when we got there. Swapped with Frank?s set for short time. Joe will swap a new next Tue.
(Notice: Frank?s set: range of H2O: 0-1000; CO2: 5-25, should be 10-25. ). Vaira Gill sonic plots screen before downloading data

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

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.)

Tower Gill sonic plots screen before downloading data

Joe installed a new CO2 analyzer for the CO2 profile system. Because the Li-800 software could not talk to the new machine, calibrated in the field was not done this time.

Screen shot of Li-800 calibration pre-cal

Screen shot of Li-800 calibration pre-cal

Screen shot of Li-800 calibration post-cal

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!
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

CR23X5 ? soil CO₂ profile
CR23X6 ? tower-Met

CR10X2 ? floor-Met

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

Screen shot of soil moisture data logger table

Soil CO₂ profile:

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	2600	1	2cm (1%)	3850	1
4cm	2430	2	4cm	5070	4
8cm	2160	3	8cm	5180	2
16cm	2420	4	16cm	8100	3

Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
10/13/2011	286
	sm
0-15	22.8	6.1	27.8	22.9	#DIV/0!	11.1	16.2	15.2	11.1
15-30	19.0	17.5	28.3	28.3	20.5	16.6	27.7	23.9	6.5
30-45	19.5	11.9	10.3	16.0	9.4	10.5	14.7	16.4	13.7
45-60	#DIV/0!	1.9	14.6	8.1	21.4	10.5	15.3	24.1	10.9

	A6D882B	A3D04E8	A6D72F5

0-15	19.8	15.6	12.4
15-30	20.5	10.2	24.8
30-45	17.9	18.3	14.5
45-60	16.6	20.1	11.0

vaira	57318a	7933dee	00000128B97F3	00000128B8072	00000128BDDE8
0-15	broken	16.5	18.2	8.6	3.7666667
15-30	broken	26.7	19.9	18.9	15.6
30-45	broken	23.1	5.7	26.9	18.9
45-60	broken	32.7	14.4	16	16.6

Soil moisture starts increasing after the rains.

Line plot of TDR soil mositure at Tonzi and Vaira 2011

Tonzi
Dendrometer

Date	Day	Tag #	Reading (mm)
10/13/2011	286	72	23.3
		79	16.5
		102	8.6
		245	19.9
		250	X	(reset to 10.5 on May 7, 2009)
		1	16.6
		2	15.1
		3	13.9
		4	19
		5	23.6
		7	14.2	133
		8	5.8	11828
		71	X
		77	X	‌
		78	X	‌
		248	X	broken
		255	X	‌
		‌252‌	X	‌
		6	X