Field Notes

<--2020-01-28 11:30:00 | 2020-02-27 12:00:00-->
Other sites visited today: Bouldin Corn | Vaira | West Pond
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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 [1] => Floor_South_1 [2] => Floor_West_1 [3] => Soil_Transect_4_1 [4] => Soil_Transect_3_1 [5] => Soil_Transect_2_1 [6] => Soil_Transect_1_1 [7] => SoilCO2_West_A_1 [8] => SoilCO2_West_B_1 [9] => SoilCO2_West_C_1 [10] => Tower_2 [11] => Floor_South_2 [12] => Floor_West_2 [13] => Soil_Transect_4_2 [14] => Soil_Transect_3_2 [15] => Soil_Transect_2_2 [16] => Soil_Transect_1_2 [17] => SoilCO2_West_A_2 [18] => SoilCO2_West_B_2 [19] => SoilCO2_West_C_2 [20] => Tower_3 [21] => Floor_South_3 [22] => Floor_West_3 [23] => Soil_Transect_4_3 [24] => Soil_Transect_3_3 [25] => Soil_Transect_1_3 [26] => SoilCO2_West_A_3 [27] => SoilCO2_West_B_3 [28] => SoilCO2_West_C_3 [29] => Tower_4 [30] => Floor_South_4 [31] => Floor_West_4 [32] => Soil_Transect_4_4 [33] => Soil_Transect_3_4 [34] => Soil_Transect_2_4 [35] => Soil_Transect_1_4 [36] => SoilCO2_West_A_4 [37] => SoilCO2_West_B_4 [38] => SoilCO2_West_C_4 [39] => Soil_Transect_2_3 )

0000

Date	DOY	Rep	Depth	Tower_1	Floor_South_1	Floor_West_1	Soil_Transect_4_1	Soil_Transect_3_1	Soil_Transect_2_1	Soil_Transect_1_1	SoilCO2_West_A_1	SoilCO2_West_B_1	SoilCO2_West_C_1	Tower_2	Floor_South_2	Floor_West_2	Soil_Transect_4_2	Soil_Transect_3_2	Soil_Transect_2_2	Soil_Transect_1_2	SoilCO2_West_A_2	SoilCO2_West_B_2	SoilCO2_West_C_2	Tower_3	Floor_South_3	Floor_West_3	Soil_Transect_4_3	Soil_Transect_3_3	Soil_Transect_1_3	SoilCO2_West_A_3	SoilCO2_West_B_3	SoilCO2_West_C_3	Tower_4	Floor_South_4	Floor_West_4	Soil_Transect_4_4	Soil_Transect_3_4	Soil_Transect_2_4	Soil_Transect_1_4	SoilCO2_West_A_4	SoilCO2_West_B_4	SoilCO2_West_C_4	Soil_Transect_2_3	Spacial Count
2020-02-12	43	0	nan	20.6	10.9	18.5	15	14.4	28.5	19.7	31.1	25	17.1	24.3	24	29.8	21	30.1	27.1	16.1	25.5	17	28	25.4	31.5	34.9	24.3	31.3	30.7	33.8	32.9	35.4	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	nan	21.4	10.9	21.7	15.6	13.8	28.2	20.9	30.2	24.1	17.6	23.1	23.7	28	21	29.8	27.4	15.5	24.3	15.8	28.9	26.8	31.3	33.5	24.6	31.3	30.1	33.8	32.4	36.3	35.4	14.8		29.1	41.1	45.4	29.1	43.1	48	47.7	38.5
2020-02-12	43	2	nan			21.4			25.3							28.6			26.8							34.6									42.3			45.7					31.9
2020-02-12	43	3	nan			21.2			26.8							28			40.5							34.3									45.1								46.6
2020-02-12	43	4	nan						27										27.4																			49.1					38
2020-02-12	43	Avg	0-15cm																																									0
2020-02-12	43	Avg	15-30cm																																									0
2020-02-12	43	Avg	30-45cm																																									0
2020-02-12	43	Avg	45-60cm																																									0

mode = both
Moisture Point Probes VR
Array ( [0] => Flux_Tower_1 [1] => Biomass_Cage_1 [2] => Flux_Tower_2 [3] => Biomass_Cage_2 [4] => Flux_Tower_3 [5] => Biomass_Cage_3 [6] => Flux_Tower_4 [7] => Biomass_Cage_4 )

0000

Date	DOY	Rep	Depth	Flux_Tower_1	Biomass_Cage_1	Flux_Tower_2	Biomass_Cage_2	Flux_Tower_3	Biomass_Cage_3	Flux_Tower_4	Biomass_Cage_4	Spacial Count
2020-02-12	43	0	nan	17.3	7.7	28.3	17.3	14.5	26.8	28.2	29.4
2020-02-12	43	1	nan	17.6	7.7	28.3	17.6	14.8	26	27.1	28.2
2020-02-12	43	Avg	0-15cm									0
2020-02-12	43	Avg	15-30cm									0
2020-02-12	43	Avg	30-45cm									0
2020-02-12	43	Avg	45-60cm									0

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