Field Notes

<--2020-07-07 10:00:00 | 2020-08-26 11:30:00-->
Other sites visited today: Tonzi | Tonzi

Vaira: 2020-07-28 10:00:00 (DOY 210)
Author: Joe Verfaillie
Others: Siyan, Sunny, Kyoko, Hisashi

Summary: Hot and Dry, Standard fieldwork, went to the pond, swapped positions of "cal" PAR sensors

Vaira
2020-07-28

Siyan and Sunny, and Kyoko, Hisashi and I all arrived at 10:00 in two cars. It was hot sunny and dry. Thereâ€™s still a little water in the water hole. My family went to the pond. The stream was dry across the road and the pond level was 15.46ft. I cleaned the solar panel and skipped a stone.

Siyan and Sunny did the well, soil moisture and clip plots.

I downloaded the data. All seemed well.
The 7500 read: 409.6ppm CO2, 553.1mmol/m3 H2O, 99.2kPa, 28.9C, 101.8SS

I swapped the positions of the two new â€œcalibrationâ€ PAR sensors: sn 161073 is incoming and sn 140455 is reflected. PAR sn 161073 is the Ameriflux calibration sensor and should not be permanently mounted on the tower. Iâ€™ll have to swap the old PAR sensors one at a time, repair their cables and swap them back in.

I removed the SMA antenna cable from the old radio link to the pond for use at Tonzi.

We left at about 11am

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2020-07-28	TZ_road	37.1
2020-07-28	TZ_floor	28.7
2020-07-28	TZ_tower	33.15
2020-07-28	VR_pond	15.46
2020-07-28	VR_well	57.1

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 [9] => Floor_West )

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	Floor_West	Avg	Spacial Count	Measurement Count
2020-07-28	210	0	0-15cm	3.6	1.8	2.2	3.1	3.9	0.9	6.8	3.3	0.1
2020-07-28	210	0	15-30cm	11.5	9.7	7.2	13.3	12.4	4.5	7.2	1.1	12.1	5.7
2020-07-28	210	0	30-45cm	14	13.4	10.3	15.9	16.2	13.1	17	16.2	11.5	24.1
2020-07-28	210	0	45-60cm	19.1	3.4	10.5	18.8	28.2	52.6	17.3	24.5	17.6
2020-07-28	210	1	0-15cm	3.6	1.8	2.5	2.2	3.6	0.6	7.4	3.9	0.1
2020-07-28	210	1	15-30cm	11.2	9.7	6.9	13.6	12.1	4.5	6	1.1	12.4	7.2
2020-07-28	210	1	30-45cm	13.4	13.4	10.3	15.9	16.5	13.4	16.5	16.5	11.5	20.1
2020-07-28	210	1	45-60cm	19.3	3.3	11.3	18.8	27.9	13.3	17.9	24.2	17.9
2020-07-28	210	Avg	0-15cm	3.6	1.8	2.35	2.65	3.75	0.75	7.1	3.6	0.1		2.86	9	18
2020-07-28	210	Avg	15-30cm	11.35	9.7	7.05	13.45	12.25	4.5	6.6	1.1	12.25	6.45	8.47	10	20
2020-07-28	210	Avg	30-45cm	13.7	13.4	10.3	15.9	16.35	13.25	16.75	16.35	11.5	22.1	14.96	10	20
2020-07-28	210	Avg	45-60cm	19.2	3.35	10.9	18.8	28.05	32.95	17.6	24.35	17.75		19.22	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
2020-07-28	210	0	0-15cm	0.1	0.1
2020-07-28	210	0	15-30cm	8.4	4.2
2020-07-28	210	0	30-45cm	4.2	12.9
2020-07-28	210	0	45-60cm	14.6	16.8
2020-07-28	210	1	0-15cm	0.1	0.6
2020-07-28	210	1	15-30cm	8.1	3.9
2020-07-28	210	1	30-45cm	5	14
2020-07-28	210	1	45-60cm	15	16.8
2020-07-28	210	Avg	0-15cm	0.1	0.35	0.23	2	4
2020-07-28	210	Avg	15-30cm	8.25	4.05	6.15	2	4
2020-07-28	210	Avg	30-45cm	4.6	13.45	9.03	2	4
2020-07-28	210	Avg	45-60cm	14.8	16.8	15.8	2	4