Field Notes

<--2022-01-19 12:25:00 | 2022-02-23 10:45:00-->
Other sites visited today: Tonzi

Vaira: 2022-02-09 13:30:00 (DOY 40)
Author: Joe Verfaillie
Others:

Summary: Added calkit, net hat from FD North, check SHF and Theta serial numbers

Vaira
2022-02-09

I arrived at about 11am PST. It was sunny and warm with a breath of breeze from the south. There were a few high thin clouds. No rain since early January and some of the hills on the way up have brown looking spots. In this area, surface water is still plentiful and only bare soil looks dry. Cows are still keeping the grass at only a few centimeters in height. Inside the fences it’s more like 10 to 20cm tall.

I added the cal kit to the radiation tower. I made some new mounts that I hoped would make it easier to get things on the tower. One I didn’t need, one needed to be modified and the other was just okay – so maybe more work needed.
CR1000 sn 23865
CNR4 sn 120788
PAR sn 212225
NDVI in sn 1049
NDVI out sn 1050
HMP155 sn T2930114

I replaced the sun hat on the north FD chamber – it is now plastic but 6in in diameter instead of 7in like the old cardboard ones. Instead of putting a whole in it for the cable I tilted it at an angle which seems ok.

I checked on the serial numbers of the SHF plates and Theta probes. I was going to check their locations but that’s going to take a lot of effort. Maybe better to do during the dry season so as to not disturb the growing plants.
SHF #1 sn 001603
SHF #2 sn 001605
SHF #4 sn 000143
Theta #1 sn 54/015
Theta #2 sn 54/011
Theta #3 sn 54/017
Theta #4 sn 54/019
Theta #5 sn 64/072

I did spectral measurements, but did not go to the pond. I measured the well. I collected Met, Flux, camera, and FD data. All seemed well.
The 7500 read: 427.1ppm CO2, 371.7mmol/m3 H2O, 100.3kPa, 22.0C, 99.9SS

I left at about 13:30

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2022-02-09	VR_well	52.2
2022-02-09	TZ_floor	26.4
2022-02-09	TZ_road	34.55
2022-02-09	TZ_tower	29.7

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

Date	DOY	Rep	Depth	Tower	Floor_South	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
2022-02-09	40	0	0-15cm	21.7	24.7	5	20.6	19.1	17.3	27	24.1	21.2
2022-02-09	40	0	15-30cm	43.3	24.3	21.3	29.5	29.8	17.3	24.6	16.4	26.5
2022-02-09	40	0	30-45cm	43.5	38.8	23.2	29.3	32.4	31.5	32.4	43.1	34.9
2022-02-09	40	0	45-60cm	40.5	53.4	28.5	39.4	47.1	32.8	44.8	45.7	46.8
2022-02-09	40	1	0-15cm	22	19.7	8.6	20	19.7	16.8	27.6	24.4	20.6
2022-02-09	40	1	15-30cm	42.6	25.2	21.3	28.9	29.2	17.3	24.9	16.1	28
2022-02-09	40	1	30-45cm	43.3	39.1	24	29.3	32.7	31.5	32.9	33.8	35.4
2022-02-09	40	1	45-60cm	38.5	51.4	27.6	38.2	46.8	42.5	42.5	46	46.6
2022-02-09	40	Avg	0-15cm	21.85	22.2	6.8	20.3	19.4	17.05	27.3	24.25	20.9	20.01	9	18
2022-02-09	40	Avg	15-30cm	42.95	24.75	21.3	29.2	29.5	17.3	24.75	16.25	27.25	25.92	9	18
2022-02-09	40	Avg	30-45cm	43.4	38.95	23.6	29.3	32.55	31.5	32.65	38.45	35.15	33.95	9	18
2022-02-09	40	Avg	45-60cm	39.5	52.4	28.05	38.8	46.95	37.65	43.65	45.85	46.7	42.17	9	18