Field Notes

<--2022-08-05 10:00:00 | 2022-08-25 15:30:00-->
Other sites visited today: Gilbert Tract | Tonzi

Vaira: 2022-08-18 12:05:00 (DOY 230)
Author: Joe Verfaillie
Others:

Summary: Hot and dry, swapped arable wind set, standard data collection, cow path at pond disturbed cable run.

Vaira
2022-08-18

I arrived at 12:05 PDT. It was clear, sunny and hot with some puffy clouds over the mountains. There was a bit of tropical rain at the coast on Wednesday, but doesn’t look like it fell here – the grass was crispy. I still need to do seasonal biomass!

I measured the well and collected the data: flux, met, FD and camera.
The 7500 read: 427.2ppm CO2, 494.0mmol/m3 H2O, 41.6C, 99.3kPa, 104.1SS

I also swapped the Arable wind set. The old one has been reporting wind direction but not wind speed. Taking the old one off I noticed that the phone jack connection looked like it had leaked and the contacts had corroded.

I went to the Pond. I haven’t seen any cows for a long time but it looks like cows have made a path along the edge of the receding pond and kicked the pressure sensor cable. I think they pulled some slack from the data logger box. I was able to push the extra cable back into the box and push the conduit under an existing rebar stake. I piled some rocks on top for good measure. The last staff gauge is visible and read 13.35ft – it was hard to read as the gauge was far from shore and dirty.

I left at about 13:20 PDT

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2022-08-18	VR_well	58.2
2022-08-18	TZ_floor	29.1
2022-08-18	TZ_road	37.6
2022-08-18	TZ_tower	33.6

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

Date	DOY	Rep	Depth	Tower	Soil_Transect_3	Soil_Transect_2	Soil_Transect_1	SoilCO2_West_A	SoilCO2_West_C	Avg	Spacial Count	Measurement Count
2022-08-18	230	0	0-15cm	5	0.6	2.7	0.1	7.1	2.1
2022-08-18	230	0	15-30cm	10.9	12.1	11.9	3.5	6.6	10.9
2022-08-18	230	0	30-45cm	13.7	12.3	15.9	12.6	14.8	11.5
2022-08-18	230	0	45-60cm	26.2	19.9	27.6	13.3	10.2	13
2022-08-18	230	1	0-15cm	3.9	0.1	2.7	0.6	8.8	2.4
2022-08-18	230	1	15-30cm	11.8	12.4	11.2	3.9	6.9	11.2
2022-08-18	230	1	30-45cm	13.1	12.3	15.4	12.6	15.1	10.9
2022-08-18	230	1	45-60cm	26.8	19.9	28.2	13.9	11.9	13.9
2022-08-18	230	Avg	0-15cm	4.45	0.35	2.7	0.35	7.95	2.25	3.01	6	12
2022-08-18	230	Avg	15-30cm	11.35	12.25	11.55	3.7	6.75	11.05	9.44	6	12
2022-08-18	230	Avg	30-45cm	13.4	12.3	15.65	12.6	14.95	11.2	13.35	6	12
2022-08-18	230	Avg	45-60cm	26.5	19.9	27.9	13.6	11.05	13.45	18.73	6	12