Field Notes

<--2012-04-05 10:30:00 | 2012-04-19 11:30:00-->
Other sites visited today: Vaira | Tonzi
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Tonzi: 2012-04-19 09:30:00 (DOY 110)
Author: Siyan Ma
Others: Joe, Naama, Laurie

Summary: Sonia and Jessica launching weather ballons, Naama did EMI survey at Vaira, Laurie took soil sample at Tonzi, Vaira computer crashed - removed, Diffuse PAR removed for repair

When: Date: 4/19/2012 , Day: 109 , Watch Time: 9:30 am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe, Naama, Laurie
ü Sonia and Jessica were launching weather balloons at Tonzi.
ü Naama did EMI survey at Vaira.
ü Laurie collected soil samples for total C and N at Tonzi
Weather: clear, sunny
Phenology: grasses looked strong; oak leaves expanding.

Summary

checked and downloaded data at Tower, Floor, and Vaira
Calibrated Li-800 in the field.
Read dendrometers
Soil moisture was not measured due to dead battery.
Measure groundwater well:

Date	DOY	Location	Depth without the black thing (feet)
4/19/2012	109	Floor	24.3
		Tower	28.3
		roadside	32.8

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.)

No screen shot taken this time. Computer was dead. Joe took it back to the lab and fixed the following Monday.

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

The diffusion sensor caused the problems of multiplexer functioning. Joe fixed the cable of the sensor in the lab.

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.)
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;

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.)

Screen shot will be added later.

downloading data YES!
Check MD-9 system connections YES!

CR23X3 – floor-Met
CR23X6 – tower-Met
CR10X2 – floor-Met

Close gate and set up fence. YES!

Tonzi
Dendrometer

Date	Day	Tag #	Reading (mm)
4/19/2012	109	72	10.2
		79	8.9
		102	11.3
		245	9.1
		250	X	(reset to 10.5 on May 7, 2009)
		1	19.3
		2	16.4
		3	16.9
		4	23.5
		5	23.7
		7	7.7	133
		8	16.5	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
Diagram of dendrometer tree locations

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2012-04-19	TZ_floor	24.3
2012-04-19	TZ_road	32.8
2012-04-19	TZ_tower	28.3

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)
2012-04-19	1	19.3
2012-04-19	102	11.3
2012-04-19	2	16.4
2012-04-19	245	9.1
2012-04-19	3	16.9
2012-04-19	4	23.5
2012-04-19	5	23.7
2012-04-19	7	7.7
2012-04-19	72	10.2
2012-04-19	79	8.9
2012-04-19	8	16.5