Field Notes

<--2021-01-21 13:00:00 | 2021-03-02 10:00:00-->
Other sites visited today: Tonzi

Vaira: 2021-02-10 13:50:00 (DOY 41)
Author: Joe Verfaillie
Others:

Summary: Water levels coming up after last storm, installed FD chamber, lots of pushy cows around, went to the pond.

Vaira
2021-02-10

I arrived at about 13:50. It was clear sunny and warm with little to no wind. There was a big storm about two weeks ago that brought lots of rain and wind. The road was nearly dry in most places but the water hole was almost full having been dry three weeks ago. Lots of mama and young cows around. A big tan mama cow followed me inside the cow fence. I had to clap my hands and yell at her to chase her back out. Then she stood just outside the fence glaring at me. The grass is still only about 5cm tall on average but might be denser than last time. The cows are maybe helping to keep it shorter but even inside the fences itâ€™s mostly not very tall.

I installed FD Chamber sn FD20200001 near the old north soil CO2 profile. I have made a solar shade for this chamber from plastic drain pipe and a piece of mirrored Mylar. We will see how its temperature compares to the existing unshielded one. I forgot the plastic collar so this chamber is just pressed to the bare ground.

I collect the Eddy, met, FD, camera, well, spectra and moisture point data.
The 7500 read: 431.2ppm CO2, 461.0mmol/m3 H2O, 24.2C, 99.8kPa, 100.6SS

I went to the pond. The stream was full but the road was dry and easily passable in my small car. The pond level has come up by about a meter.

I left at about 15:20

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2021-02-10	TZ_floor	31.4
2021-02-10	TZ_road	38.9
2021-02-10	TZ_tower	36.05
2021-02-10	VR_well	59.15
2021-02-10	VR_pond	20.04

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

Date	DOY	Rep	Depth	Tower	Floor_South	Soil_Transect_4	Soil_Transect_2	Soil_Transect_1	SoilCO2_West_A	SoilCO2_West_B	SoilCO2_West_C	Soil_Transect_3	Avg	Spacial Count	Measurement Count
2021-02-10	41	0	0-15cm	33.8	22.3	14.7	22.9	17.1	28.8	27.9	26.1
2021-02-10	41	0	15-30cm	34.1	34.1	28	31.6	20.6	24.3	21	33.8	31
2021-02-10	41	0	30-45cm	33.2	41	33.8	34.6	34.9	35.4	29	38.2	32.9
2021-02-10	41	0	45-60cm	41.4	51.7	34.5	47.2	37.4	40	57.4	48.8	43.7
2021-02-10	41	1	0-15cm	34.9	21.7	14.4	22.3	17.3	31.4	27.9	27.9	20.3
2021-02-10	41	1	15-30cm	33.5	34.7	28.9	32.3	21	24.6	20.3	31.9	30.7
2021-02-10	41	1	30-45cm	33.2	40.2	34.3	34.6	34.6	34.9	24.6	38.5	33.8
2021-02-10	41	1	45-60cm	42.8	50.9	34.2	46.6	36.8	40.5	11.1	48.3	44
2021-02-10	41	Avg	0-15cm	34.35	22	14.55	22.6	17.2	30.1	27.9	27	20.3	24	9	17
2021-02-10	41	Avg	15-30cm	33.8	34.4	28.45	31.95	20.8	24.45	20.65	32.85	30.85	28.69	9	18
2021-02-10	41	Avg	30-45cm	33.2	40.6	34.05	34.6	34.75	35.15	26.8	38.35	33.35	34.54	9	18
2021-02-10	41	Avg	45-60cm	42.1	51.3	34.35	46.9	37.1	40.25	34.25	48.55	43.85	42.07	9	18

mode = both
Moisture Point Probes VR
Array ( [0] => Flux_Tower [1] => Biomass_Cage )

Date	DOY	Rep	Depth	Flux_Tower	Biomass_Cage	Avg	Spacial Count	Measurement Count
2021-02-10	41	0	0-15cm	12.1
2021-02-10	41	0	15-30cm	30.7
2021-02-10	41	0	30-45cm	17	29
2021-02-10	41	0	45-60cm	29.1	27.4
2021-02-10	41	1	0-15cm	13.8	9.1
2021-02-10	41	1	15-30cm	31	19.7
2021-02-10	41	1	30-45cm	16.8	31
2021-02-10	41	1	45-60cm	28.8	31.4
2021-02-10	41	2	0-15cm		9.4
2021-02-10	41	2	15-30cm		20
2021-02-10	41	2	30-45cm		30.7
2021-02-10	41	2	45-60cm		32.2
2021-02-10	41	Avg	0-15cm	12.95	9.25	11.1	2	4
2021-02-10	41	Avg	15-30cm	30.85	19.85	25.35	2	4
2021-02-10	41	Avg	30-45cm	16.9	30.23	23.57	2	5
2021-02-10	41	Avg	45-60cm	28.95	30.33	29.64	2	5