Field Notes

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Vaira: 2021-01-21 13:00:00 (DOY 21)
Author: Joe Verfaillie
Others:

Summary: Rain coming, Standard fieldwork, did not go to pond, swapped Arable units.

Vaira
2021-01-21

I arrived at about 13:00. It was mostly clear, sunny and warm but clouds were moving in from the southwest â€“ rain is forecast for tomorrow and most of next week. The road was dry as was the waterhole. The grass is just hanging on probably getting enough dew to stay alive.

I collected the data and the FD data, did the soil moisture and measured the well. I did not go to the pond today. I also took some JAZ spectra but the clouds were blocking the sun by that time so the light might be a little unstable.

The 7500 read: 426.8ppm CO2, 268.3mmol/m3 H2O, 20.0C, 99.7kPa, 100.0ss

I swapped the Arable Mark I unit for a new Mark II unit: sn A001353 came off and sn C006160 went on. The Mark IIâ€™s have a different power connector than the Mark Iâ€™s so I had to open the breakout box for the wind vane to swap out the power cable too. The new unit seemed to boot correctly and both the new Mark II and the older Mark II had all green lights when I left. Some of the Mark IIs we installed for the Planet Labs project seemed to interfere with each otherâ€™s communications but that wasnâ€™t apparent here. I thought these antennas look a little different.

I cleaned the radiometers.

The neighbors to the south were out cutting some trees that had fallen for fire wood.

I left about 14:00

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2021-01-21	TZ_floor	31.75
2021-01-21	TZ_road	39.35
2021-01-21	TZ_tower	36.5
2021-01-21	VR_well	61

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower_1 [1] => Floor_South_1 [2] => Soil_Transect_4_1 [3] => Soil_Transect_3_1 [4] => Soil_Transect_2_1 [5] => Soil_Transect_1_1 [6] => SoilCO2_West_A_1 [7] => SoilCO2_West_B_1 [8] => SoilCO2_West_C_1 [9] => Tower_2 [10] => Floor_South_2 [11] => Floor_West_2 [12] => Soil_Transect_4_2 [13] => Soil_Transect_3_2 [14] => Soil_Transect_2_2 [15] => Soil_Transect_1_2 [16] => SoilCO2_West_A_2 [17] => SoilCO2_West_B_2 [18] => SoilCO2_West_C_2 [19] => Tower_3 [20] => Floor_South_3 [21] => Soil_Transect_4_3 [22] => Soil_Transect_3_3 [23] => Soil_Transect_2_3 [24] => Soil_Transect_1_3 [25] => SoilCO2_West_A_3 [26] => SoilCO2_West_B_3 [27] => SoilCO2_West_C_3 [28] => Tower_4 [29] => Floor_South_4 [30] => Soil_Transect_4_4 [31] => Soil_Transect_3_4 [32] => Soil_Transect_2_4 [33] => Soil_Transect_1_4 [34] => SoilCO2_West_A_4 [35] => SoilCO2_West_B_4 [36] => SoilCO2_West_C_4 [37] => Floor_West_1 )

0000

Date	DOY	Rep	Depth	Tower_1	Floor_South_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	Soil_Transect_4_3	Soil_Transect_3_3	Soil_Transect_2_3	Soil_Transect_1_3	SoilCO2_West_A_3	SoilCO2_West_B_3	SoilCO2_West_C_3	Tower_4	Floor_South_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	Floor_West_1	Spacial Count
2021-01-21	21	0	nan	11.5	8	4.5	8.8	11.2	2.4	20.9	15.9	8.6	12.7	12.4	12.4	10.6	24	19.1	5.4	17	6	17	13.1	9	9.5	13.4	16.2	12	18.2	10.9	10.3	15.9	5.6	10.5	12.2	22.2	12.8	12.5	11.1	12.5
2021-01-21	21	1	nan	11.5	6.8		8.3	10.9	2.1	20.3	18.5	8.6	12.1	12.4	12.1		24	19.7	5.1	17.6	5.4	17	12.6	8.7		12.6	15.9	12.3	18.2	10.9	11.5	16.2	5.9		12.8	22.2	12.2	13.3	25.9	13	16.5
2021-01-21	21	Avg	0-15cm																																							0
2021-01-21	21	Avg	15-30cm																																							0
2021-01-21	21	Avg	30-45cm																																							0
2021-01-21	21	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
2021-01-21	21	0	nan	4.5	3.9	18.5	12.1	7	19	14.2	18.2
2021-01-21	21	1	nan	5	3.9	18.2	12.7	7.3	19.8	13.3	17.3
2021-01-21	21	Avg	0-15cm									0
2021-01-21	21	Avg	15-30cm									0
2021-01-21	21	Avg	30-45cm									0
2021-01-21	21	Avg	45-60cm									0