Field Notes

<--2014-11-26 09:40:00 | 2014-12-09 11:00:00-->
Other sites visited today: Vaira | Tonzi

Tonzi: 2014-12-09 09:00:00 (DOY 343)
Author: Siyan Ma
Others: Joe

Summary: Standard field work, clip plots, grass height, power outages do to low sunlight at Tonzi, CO2 profile not working

When: Date: 12/09/2014 , Day: 340 , Watch Time: 9:00 am .
Where: Tonzi/Vaira Ranch
Who: Siyan, Joe
Weather: cloudy
Phenology: grass grew well; oak tree leaves turned into brown at Vaira.

Summary

Swapped memory cards of CR1000s at three sites. Due to consecutive raining or lower light days, Tonzi Tower flux system was down around 12/4/2014; Floor site might not work properly. Joe tried finding back data from reading the binary files.
Checked and downloaded met data from PC at Tower, Floor. and Vaira.
The CO2 profile system wasnâ€™t calibrated on site due to some problems of the analyzer. Joe changed the filters and cleaned up the cells, but the system didnâ€™t work properly.
Checked SN# of the soil CO2 probes at Tonzi and Vaira; Joe put parts to hold the probes more stably.
Read dendrometers
Measured soil moisture
Measured grass height
Measured groundwater well
Collected grass samples for LAI, biomass, and aboveground litter mass. The area around the fence that Joe cleaned in the summer turned out to be a good experiment for detecting the effects of litters on grass germination. For this reason, grass samples were taken within and out of the â€œgreen stripâ€ at Vaira.

Vaira_Grass Site

Nice Fence.
Downloaded Phenocam images.
Swapped the memory cards of CR1000.
Checked the fans of air temp and relative humidity sensors at Vaira. YES!
Downloaded met data:

Joe downloaded soil CO2 profile data.
Checked levels of Radiation sensors, clear up surfaces.YES!
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. Due to consecutive raining or lower light days, Tonzi Tower flux system was down around 12/4/2014.
swapped the memory cards of 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:
The CO2 profile system wasnâ€™t calibrated on site due to some problems of the analyzer. Joe changed the filters and cleaned up the cells, but the system didnâ€™t work properly.

10. closed gate and set up fence. YES!
Toniz_Floor Site

Fence and gate power: 12 v.
downloaded Winflux data from PC. YES! ; Floor site might not work properly. Joe tried finding back data from reading the binary files.
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

No tank data

Well Depth

Date	Location	Depth (feet)
2014-12-09	TZ_floor	32.4
2014-12-09	TZ_road	40.7
2014-12-09	TZ_tower	37.1

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
2014-12-09	343	0	0-15cm	25	21.2	39.3	11.1	19.7	13.8	25	18.2	11.2	24.7	23.5	31.1
2014-12-09	343	0	15-30cm	20	21.5	29.8	27.4	31.3	39.7	35	28.9	7.2	22.8	16.7	29.5
2014-12-09	343	0	30-45cm	14.8	9.8	30.7	22.3	13.3	18.4	29.9	19.3	12.3	38	33.5	31.1
2014-12-09	343	0	45-60cm		7	16.8	20.5	14.5	9.3	13.6	16.8	11	17.9	10.2	32.8
2014-12-09	343	1	0-15cm	25.8	20.3		11.1	26.4			16.8		24.4		34.1
2014-12-09	343	1	15-30cm	19.1	21.9		27.1	26.5			29.2		24		31.9
2014-12-09	343	1	30-45cm	15.6	8.4		22.9	12			20.7		33.5		29.9
2014-12-09	343	1	45-60cm		7		21.1	14.2			16.5		17.6		34.8
2014-12-09	343	Avg	0-15cm	25.4	20.75	39.3	11.1	23.05	13.8	25	17.5	11.2	24.55	23.5	32.6	22.31	12	19
2014-12-09	343	Avg	15-30cm	19.55	21.7	29.8	27.25	28.9	39.7	35	29.05	7.2	23.4	16.7	30.7	25.75	12	19
2014-12-09	343	Avg	30-45cm	15.2	9.1	30.7	22.6	12.65	18.4	29.9	20	12.3	35.75	33.5	30.5	22.55	12	19
2014-12-09	343	Avg	45-60cm		7	16.8	20.8	14.35	9.3	13.6	16.65	11	17.75	10.2	33.8	15.57	11	17

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
2014-12-09	343	0	0-15cm	19.7	17.9	18.2	7.1
2014-12-09	343	0	15-30cm	26.1	30.1	21	18.5
2014-12-09	343	0	30-45cm	23.7	20.1	25.1	26
2014-12-09	343	0	45-60cm	28.8	13.6	19.6	17.6
2014-12-09	343	1	0-15cm	20.6	17.9	18.8	6.2
2014-12-09	343	1	15-30cm	25.8	29.2	21.3	18.2
2014-12-09	343	1	30-45cm	23.7	19	24.6	26
2014-12-09	343	1	45-60cm	27.9	13.3	19.6	17.6
2014-12-09	343	Avg	0-15cm	20.15	17.9	18.5	6.65	15.8	4	8
2014-12-09	343	Avg	15-30cm	25.95	29.65	21.15	18.35	23.78	4	8
2014-12-09	343	Avg	30-45cm	23.7	19.55	24.85	26	23.53	4	8
2014-12-09	343	Avg	45-60cm	28.35	13.45	19.6	17.6	19.75	4	8

No TZ grass heigth found

Grass Height VR 9

Date	Height reps (cm)									Location	Average	Samp	STDEV
2014-12-09	3	4	4	6	7	7	4	6	3	GH_FENCED	4.89	9	1.52
2014-12-09	3	5	4							GH_OUT	4	3	0.82

Tree DBH

Date	Tag#	Reading (mm)
2014-12-09	1	12.0
2014-12-09	102	9.4
2014-12-09	2	12.5
2014-12-09	245	19.4
2014-12-09	3	12.0
2014-12-09	4	9.0
2014-12-09	5	12.4
2014-12-09	7	9.5
2014-12-09	72	19.5
2014-12-09	79	14.9
2014-12-09	8	13.3