Field Notes

<--2015-04-29 10:00:00 | 2015-05-06 11:15:00-->
Other sites visited today: Vaira | Tonzi

Tonzi: 2015-05-06 10:00:00 (DOY 126)
Author: Siyan Ma
Others: Joe, Dennis, Ana

Summary: Standard fieldwork, Joe worked on Tower sonic, Dennis fixed soil CO2 power, midday water potential, fixed Vaira HMP45 fan

When: Date: 5/6/2015 , Day: , Watch Time: 10:00 am .

Where: Tonzi/Vaira Ranch

Who: Siyan, Dennis, Joe, and Ana

Weather: clear, sunny

Phenology: grasses still green but almost done; a lot of yellow flowers; deep layer soil moisture good; the small pond at Vaira full of water

Summary

Swapped memory cards of CR1000s at three sites.
Joe checked the sonic at the Tower. PCâ€™s clock was about 10 minutes faster.
Checked and downloaded winflux and met data from PC at Tower and Floor.
Checked and downloaded met and soil CO2 profile data at Vaira.
calibrated the CO2 profile system
Dennis and Joe fixed the power issue of soil CO2 profile system at Tonzi.
Read dendrometers
Measured soil moisture
Measured grass height at Vaira (by Dennis)
Measure groundwater well
Measured midday water potentials of oak leaves, pine needles, broadleaf forbs, and annual grasses.

Vaira_Grass Site

Downloaded Phenocam images.
Swapped the memory cards of CR1000.
Checked the fans of air temp and relative humidity sensors at Vaira. Joe fixed the fan.
Downloaded met and soil CO2 profile data:

Checked levels of Radiation sensors, clear up surfaces.YES! (by Ana)
Checked rain gage, make sure not clogged. YES!
Closed gate and set up fence. YES!

Tonzi_Tower Site

Fence and gate power: 12 v.
downloaded Winflux data from PC. YES!
swapped the memory cards of CR1000. Joe checked the sonic and Cr1000.
download Phenocam images. Yes!
checked the fans of air temp. and relative humidity sensors on the tower and the floor. YES!
Checked rain gage, make sure not clogged. YES!
Downloaded met data from PC
Checked CO2 profile: calibrated. (screen shots were left in the field PC.)

9. closed gate and set up fence. YES!

Midday grass and broadleaf water potential

Broadleaf,-3.5,-5,-4.5

Annual,-18,-20,-10

Toniz_Floor Site

Fence and gate power: 12 v.
downloaded Winflux data from PC. YES!

Swapped the memory cards of CR1000.

downloaded met data from PC. YES!

CR23X3 â€“ floor-Met

CR23X6 â€“ tower-Met

CR10X2 â€“ floor-Met

Soil CO₂ profile: CR23X5 â€“ soil CO₂ profile

Closed gate and set up fence. YES!

Field Data

CO2 Profile Tanks

Date	Tank	Pressure (psi)	ppm
2015-05-06	CO2	1500	405
2015-05-06	N2	950	0

Well Depth

Date	Location	Depth (feet)
2015-05-06	TZ_floor	27.6
2015-05-06	TZ_road	36.3
2015-05-06	TZ_tower	31.3

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower [1] => Floor_South [2] => Floor_East [3] => Floor_West [4] => SoilCO2 [5] => Soil_Transect_4 [6] => Soil_Transect_3 [7] => Soil_Transect_2 [8] => Soil_Transect_1 [9] => SoilCO2_West_A [10] => SoilCO2_West_B [11] => SoilCO2_West_C )

Date	DOY	Rep	Depth	Tower	Floor_South	Floor_East	Floor_West	SoilCO2	Soil_Transect_4	Soil_Transect_3	Soil_Transect_2	Soil_Transect_1	SoilCO2_West_A	SoilCO2_West_B	SoilCO2_West_C	Avg	Spacial Count	Measurement Count
2015-05-06	126	0	0-15cm	8.3	6.8	39.9	13.8	11.1	4.7	9.7	8.6	7.7	13.2	7.7	6.2
2015-05-06	126	0	15-30cm	10.9	14.8	14.5	9	14.5	12.1	16.7	16.4	6.3	12.4	2	14.8
2015-05-06	126	0	30-45cm	15.6	14.5	39.6	19.8	16.5	11.5	18.2	20.9	16.5	20.4	18.4	16.5
2015-05-06	126	0	45-60cm	11.9	13.6	41.4	25.6	88.7	13	21.6	31.9	13.3	24.5	21.3	25.1
2015-05-06	126	1	0-15cm	8	6.8	39.9	13.2	11.1	4.5	10	2.1	8.6	14.4	8	6.5
2015-05-06	126	1	15-30cm	11.2	15.5	14.5	10.3	14.2	12.4	16.4	17	6	12.7	2.3	14.5
2015-05-06	126	1	30-45cm	16.5	14.8	39.6	19	18.7	11.2	18.2	20.4	16.5	20.4	18.4	17.3
2015-05-06	126	1	45-60cm	12.5	14.5	41.4	25.6	11.1	14.2	22.2	32.5	13.3	25.4	20.5	25.9
2015-05-06	126	2	0-15cm	8	6.5	39.9	11.1	11.1		9.7	8.8	7.4	13.8	8	5.6
2015-05-06	126	2	15-30cm	10.9	15.2	14.8	9.7	14.8		17.3	16.7	6	12.7	2	14.5
2015-05-06	126	2	30-45cm	16.5	14.5	39.6	19.8	16.5		18.4	20.7	16.8	19.8	18.4	17
2015-05-06	126	2	45-60cm	11.6	14.5	41.4	25.6	22.4		22.8	32.2	13.6	24.8	20.5	25.9
2015-05-06	126	Avg	0-15cm	8.1	6.7	39.9	12.7	11.1	4.6	9.8	6.5	7.9	13.8	7.9	6.1	11.26	12	35
2015-05-06	126	Avg	15-30cm	11	15.17	14.6	9.67	14.5	12.25	16.8	16.7	6.1	12.6	2.1	14.6	12.17	12	35
2015-05-06	126	Avg	30-45cm	16.2	14.6	39.6	19.53	17.23	11.35	18.27	20.67	16.6	20.2	18.4	16.93	19.13	12	35
2015-05-06	126	Avg	45-60cm	12	14.2	41.4	25.6	40.73	13.6	22.2	32.2	13.4	24.9	20.77	25.63	23.89	12	35

mode = both
Moisture Point Probes VR
Array ( [0] => Solar_Panels [1] => Flux_Tower [2] => Gate [3] => Biomass_Cage )

Date	DOY	Rep	Depth	Solar_Panels	Flux_Tower	Gate	Biomass_Cage	Avg	Spacial Count	Measurement Count
2015-05-06	126	0	0-15cm	39.9	39.9	4.7	39.9
2015-05-06	126	0	15-30cm	50	50	6.3	50
2015-05-06	126	0	30-45cm	16.8	39.6	39.6	39.6
2015-05-06	126	0	45-60cm	41.4	13	41.4	14.5
2015-05-06	126	1	0-15cm	39.9	39.9	4.7	39.9
2015-05-06	126	1	15-30cm	9.7	50	6.9	50
2015-05-06	126	1	30-45cm	17	39.6	39.6	39.6
2015-05-06	126	1	45-60cm	41.4	12.6	41.4	14.2
2015-05-06	126	2	0-15cm	39.9	39.9		39.9
2015-05-06	126	2	15-30cm	7.2	50		50
2015-05-06	126	2	30-45cm	15.9	39.6		39.6
2015-05-06	126	2	45-60cm	41.4	12.8		14.8
2015-05-06	126	Avg	0-15cm	39.9	39.9	4.7	39.9	31.1	4	11
2015-05-06	126	Avg	15-30cm	22.3	50	6.6	50	32.23	4	11
2015-05-06	126	Avg	30-45cm	16.57	39.6	39.6	39.6	33.84	4	11
2015-05-06	126	Avg	45-60cm	41.4	12.8	41.4	14.5	27.53	4	11

No TZ grass heigth found

Grass Height VR 22

Date	Height reps (cm)																						Location	Average	Samp	STDEV
2015-05-06	50	40	37	42	48	62	40	50	68	75	50	54	45	53	25	37	33	33	44	36	78	40	GH_ALL	47.27	22	13.32

Tree DBH

Date	Tag#	Reading (mm)
2015-05-06	102	12.0
2015-05-06	2	14.5
2015-05-06	245	21.5
2015-05-06	3	15.3
2015-05-06	4	11.5
2015-05-06	5	14.2
2015-05-06	7	11.8
2015-05-06	72	21.0
2015-05-06	79	17.5
2015-05-06	8	15.5

Water Potential - mode: raw

Time< h>	Species	Tree	readings (bar)
2015-05-06 12:00:00	OAK	102	-13	-12	-14
2015-05-06 12:00:00	OAK	35	-20	-23	-12
2015-05-06 12:00:00	OAK	92	-22	-20	-24
2015-05-06 12:15:00	PINE	OLD	-20	-23	-4
2015-05-06 12:15:00	PINE	YNG	-4	-5	-2