Field Notes

<--2015-03-02 10:00:00 | 2015-03-16 10:00:00-->
Other sites visited today: Tonzi | Vaira

Tonzi: 2015-03-02 11:00:00 (DOY 61)
Author: Joe Verfaillie
Others: Siyan

Summary: Trees beginning to leaf out, replaced second from bottom hmp45 fan, fixed tower fence and tram fence, swapped pyranometer desiccant.

Tonzi
2015-03-02

I arrived about 11:00 with Siyan. It was partly cloudy and mild with gusty wind from the south west. The grass looks green and happy with some flowers beginning. A few of the trees are beginning to put on leaves.

I collected data, serviced the zcams and calibrated the CO2 profile system.

I cleaned the radiometers and swapped the desiccant in the pyranometer. The BF5 had almost no condensation, but we should swap its desiccant again next time.

The ventilation fan on the HMP45 second from bottom (1.3m) was dead. I swapped it out.

One trunk of a dead tree just north of the tram has broken about 10ft up and fallen over the cow fence. It has not touched the fence and still seems securely connected to the tree. But, it might completely fall and damage the fence later. Some smaller dead branches fell on the fence in the south west corner. I cleaned those up and fixed the fence.

A dead branch also fell on the soil CO2 battery boxes. They are okay for now but should probably be checked later.

I fixed a broken wire on the main tower fence.

Field Data

CO2 Profile Tanks

Date	Tank	Pressure (psi)	ppm
2015-03-02	CO2	1750	405
2015-03-02	N2	1200	0

Well Depth

Date	Location	Depth (feet)
2015-03-02	TZ_floor	28.9
2015-03-02	TZ_road	38.3
2015-03-02	TZ_tower	32.5

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

Date	DOY	Rep	Depth	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
2015-03-02	61	0	0-15cm	10.6	39.9	24.4	35.8	22.9	16.2	20.3	20.3	22.3	23.8	20
2015-03-02	61	0	15-30cm	31.3	33.4	31.3	28.9	25.8	33.5	30.1	20	26.1	16.7	30.7
2015-03-02	61	0	30-45cm	38.5	39.4	37.7	43	24.8	29.3	32.4	32.9	33.2	33.5	35.4
2015-03-02	61	0	45-60cm	47.7	62	45.1	39.1	31.1	39.1	46.8	29.4	42.8	48.6	48.8
2015-03-02	61	1	0-15cm	10.9		24.7	30.5		17.9	18.5	19.7	22	23.2	20.3
2015-03-02	61	1	15-30cm	31.3		31.6	29.5		30.1	29.5	18.8	26.5	15.8	30.7
2015-03-02	61	1	30-45cm	38.2		37.4	42.4		28.8	32.9	32.4	32.7	33.5	36.3
2015-03-02	61	1	45-60cm	48.3		45.7	36.5		39.4	47.4	29.1	43.4	49.1	48.8
2015-03-02	61	Avg	0-15cm	10.75	39.9	24.55	33.15	22.9	17.05	19.4	20	22.15	23.5	20.15	23.05	11	20
2015-03-02	61	Avg	15-30cm	31.3	33.4	31.45	29.2	25.8	31.8	29.8	19.4	26.3	16.25	30.7	27.76	11	20
2015-03-02	61	Avg	30-45cm	38.35	39.4	37.55	42.7	24.8	29.05	32.65	32.65	32.95	33.5	35.85	34.5	11	20
2015-03-02	61	Avg	45-60cm	48	62	45.4	37.8	31.1	39.25	47.1	29.25	43.1	48.85	48.8	43.7	11	20

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
2015-03-02	61	0	0-15cm	11.8	16.8	14.1	6.8
2015-03-02	61	0	15-30cm	26.5	24.6	15.9	17.9
2015-03-02	61	0	30-45cm	29.6	18.1	19	26.5
2015-03-02	61	0	45-60cm	35.4	25.4	15.6	27.9
2015-03-02	61	1	0-15cm	7.7	17.3	13.8	7.1
2015-03-02	61	1	15-30cm	27.1	24.3	15.8	18.5
2015-03-02	61	1	30-45cm	27.4	11.7	18.7	25.4
2015-03-02	61	1	45-60cm	38	25.4	16.5	27.6
2015-03-02	61	Avg	0-15cm	9.75	17.05	13.95	6.95	11.93	4	8
2015-03-02	61	Avg	15-30cm	26.8	24.45	15.85	18.2	21.33	4	8
2015-03-02	61	Avg	30-45cm	28.5	14.9	18.85	25.95	22.05	4	8
2015-03-02	61	Avg	45-60cm	36.7	25.4	16.05	27.75	26.48	4	8

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2015-03-02	1	11.5
2015-03-02	102	9.6
2015-03-02	2	13.2
2015-03-02	245	19.6
2015-03-02	3	13.6
2015-03-02	4	9.1
2015-03-02	5	13.0
2015-03-02	7	10.2
2015-03-02	72	19.5
2015-03-02	79	15.5
2015-03-02	8	13.3