Field Notes

<--2020-01-28 11:30:00 | 2020-02-27 12:00:00-->
Other sites visited today: Bouldin Corn | Vaira | West Pond

Tonzi: 2020-02-12 12:00:00 (DOY 43)
Author: Joe Verfaillie
Others: Daphne

Summary: Standard fieldwork, grass looking yellow-brown, IRT sensors out of mounts, cow fences down, swapped 7500s

Tonzi
2020-02-12

Daphne and I arrived at about 12:00 noon. It was clear, sunny and warm. The grass here looks very yellow-brown. The puddles in the road are now just muddy spots. The pond is still low.

I collected the data and swapped 7500s for calibration:
Tower sn 75H-2182 came down and sn 75H-2150 went up.
sn 75H-2182 off: 419.3ppm CO2, 295mmol/m3 H2O, 99.2kPa, 16.9C, 99.9SS
sn 75H-2150 on: 423.4ppm CO2, 274mmol/m3 H2O, 99.2kPa, 17.5C, 102.0SS

Floor sn 0418 came down and sn 1594 went up.
sn 0418 off: 418.0ppm CO2, 318mmol/m3 H2O, 99.3kPa, 18.9C, 95.6SS
sn 1594 on: 425.6ppm CO2, 287mmol/m3 H2O, 99.3kPa, 19.1C, 101.4SS

I collected the FD chamber data but did not clear the memory.

A bunch of the IRT sensors were knocked out of position either by wind or animals. The two pointing at the tree trunk were misaligned. I realigned them but the mounting post might be loose in the ground. The one pointed at the grass near the solar panels was laying on the ground. I remounted it. And the original one pointed at the ground by the small tree was out of its mount but still mostly pointed at the ground. Its lab clamp is rusted and might need a new one.

The cow fences around the Tower and soil CO2 site were also down. I fixed wires in both locations.

Daphne did the manual soil moisture, DBH, well measurements and serviced the z-cams.

We left at about 13:00

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2020-02-12	VR_well	57.47
2020-02-12	TZ_floor	29.8
2020-02-12	TZ_tower	34.55
2020-02-12	TZ_road	38

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

Date	DOY	Rep	Depth	Tower	Floor_South	Floor_West	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
2020-02-12	43	0	0-15cm	20.6	10.9	18.5	15	14.4	28.5	19.7	31.1	25	17.1
2020-02-12	43	0	15-30cm	24.3	24	29.8	21	30.1	27.1	16.1	25.5	17	28
2020-02-12	43	0	30-45cm	25.4	31.5	34.9	24.3	31.3		30.7	33.8	32.9	35.4
2020-02-12	43	0	45-60cm	35.4	14.5	45.7	28.2	40.8	45.4	30.2	43.4	48.6	47.4
2020-02-12	43	1	0-15cm	21.4	10.9	21.7	15.6	13.8	28.2	20.9	30.2	24.1	17.6
2020-02-12	43	1	15-30cm	23.1	23.7	28	21	29.8	27.4	15.5	24.3	15.8	28.9
2020-02-12	43	1	30-45cm	26.8	31.3	33.5	24.6	31.3	38.5	30.1	33.8	32.4	36.3
2020-02-12	43	1	45-60cm	35.4	14.8		29.1	41.1	45.4	29.1	43.1	48	47.7
2020-02-12	43	2	0-15cm			21.4			25.3
2020-02-12	43	2	15-30cm			28.6			26.8
2020-02-12	43	2	30-45cm			34.6			31.9
2020-02-12	43	2	45-60cm			42.3			45.7
2020-02-12	43	3	0-15cm			21.2			26.8
2020-02-12	43	3	15-30cm			28			40.5
2020-02-12	43	3	30-45cm			34.3			46.6
2020-02-12	43	3	45-60cm			45.1
2020-02-12	43	4	0-15cm						27
2020-02-12	43	4	15-30cm						27.4
2020-02-12	43	4	30-45cm						38
2020-02-12	43	4	45-60cm						49.1
2020-02-12	43	Avg	0-15cm	21	10.9	20.7	15.3	14.1	27.16	20.3	30.65	24.55	17.35	20.2	10	25
2020-02-12	43	Avg	15-30cm	23.7	23.85	28.6	21	29.95	29.84	15.8	24.9	16.4	28.45	24.25	10	25
2020-02-12	43	Avg	30-45cm	26.1	31.4	34.33	24.45	31.3	38.75	30.4	33.8	32.65	35.85	31.9	10	24
2020-02-12	43	Avg	45-60cm	35.4	14.65	44.37	28.65	40.95	46.4	29.65	43.25	48.3	47.55	37.92	10	23

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

Date	DOY	Rep	Depth	Flux_Tower	Biomass_Cage	Avg	Spacial Count	Measurement Count
2020-02-12	43	0	0-15cm	17.3	7.7
2020-02-12	43	0	15-30cm	28.3	17.3
2020-02-12	43	0	30-45cm	14.5	26.8
2020-02-12	43	0	45-60cm	28.2	29.4
2020-02-12	43	1	0-15cm	17.6	7.7
2020-02-12	43	1	15-30cm	28.3	17.6
2020-02-12	43	1	30-45cm	14.8	26
2020-02-12	43	1	45-60cm	27.1	28.2
2020-02-12	43	Avg	0-15cm	17.45	7.7	12.58	2	4
2020-02-12	43	Avg	15-30cm	28.3	17.45	22.88	2	4
2020-02-12	43	Avg	30-45cm	14.65	26.4	20.53	2	4
2020-02-12	43	Avg	45-60cm	27.65	28.8	28.23	2	4

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2020-02-12	1	21.3
2020-02-12	102	12.4
2020-02-12	2	20.8
2020-02-12	3	14.1
2020-02-12	4	6.4
2020-02-12	6	15.4
2020-02-12	7	18.9
2020-02-12	72	5.0
2020-02-12	79	19.1
2020-02-12	8	3.9