Field Notes

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Vaira: 2021-09-16 11:00:00 (DOY 259)
Author: Joe Verfaillie
Others:

Summary: Standard fieldwork, checked ethernet lines, Moisture Point rods might be dead.

Vaira
2021-09-16

I arrived at 11:00 PDT. It was clear but hazy and relatively cool for this time of year. There was a tiny bit of rain about a week ago from a passing thunderstorm but didnâ€™t seem to do more than pockmark the dust. Most trees have some brown leaves, and few are mostly brown and a few are still mostly green. The grass seemed shorter (more grazed) than last time and I see young cows in the phenocam photos.

I measured the well but did not go to the pond.

I measured the Moisture Point at the biomass enclosure which seemed okay, but afterwards I found the bottom pin broken off and stuck in the cable connector. Then at the rod near the solar panels I noticed that the bottom pin was bent and broke when I tried to straighten it. This rod is also missing the top pin and didnâ€™t read at all. So itâ€™s possible we have no more functioning Moisture Point rods at Varia.

I collected the met, flux, camera and FD chamber data. All seemed well.
The 7500 read: 411.9ppm CO2, 536.5mmol/m3 H2O, 99.1kPa, 24.8C, 102.6SS

I looked at the two Ethernet cables that run between the two towers. I cut the connector off the cable still in the camera case, moved the cable to inside the data logger box and put a new connector on it. This cable worked. I tried to test the continuity in the older cable but failed. Either the cable is completely broken or the adapters I was using limit continuity. I put a new connector on the end that was cut but could not communicate on it.

I left at about 12:10 PDT

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2021-09-16	VR_well	60.4
2021-09-16	TZ_floor	32.15
2021-09-16	TZ_road	39.8
2021-09-16	TZ_tower	36.85

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

0000

Date	DOY	Rep	Depth	Tower_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	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	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	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_4_1	Spacial Count
2021-09-16	259	0	nan	3	0.4	3	0.3	7.1	3	3.3	10.6	4.5	12.4	10.3	4.2	5.7	1.7	10.6	13.4	9.2	11.7	15.9	12.9	14.3	14	10.1	15.9	10.5	19.1	26.5	13	15	6.2	11
2021-09-16	259	1	nan	2.7	0.1	2.4	0.1	6.5	3	2.4	12.1	5.1	12.1	11.5	3.2	6.6	1.4	10.6	14.3	9	11.2	14.8	12.3	15.1	13.7	10.6	17.9	10.5	19.6	25.9	13.3	15.6	5.9	11.6	0.3
2021-09-16	259	Avg	0-15cm																																	0
2021-09-16	259	Avg	15-30cm																																	0
2021-09-16	259	Avg	30-45cm																																	0
2021-09-16	259	Avg	45-60cm																																	0

mode = both
Moisture Point Probes VR
Array ( [0] => Biomass_Cage_1 [1] => Biomass_Cage_2 [2] => Biomass_Cage_3 [3] => Biomass_Cage_4 )

0000

Date	DOY	Rep	Depth	Biomass_Cage_1	Biomass_Cage_2	Biomass_Cage_3	Biomass_Cage_4	Spacial Count
2021-09-16	259	0	nan	0.7	2.6	11.5	15
2021-09-16	259	1	nan	0.4	3.2	11.5	15
2021-09-16	259	Avg	0-15cm					0
2021-09-16	259	Avg	15-30cm					0
2021-09-16	259	Avg	30-45cm					0
2021-09-16	259	Avg	45-60cm					0