Field Notes

<--2020-03-02 09:45:00 | 2020-04-01 11:45:00-->
Other sites visited today: Vaira

Tonzi: 2020-03-12 11:15:00 (DOY 72)
Author: Joe Verfaillie
Others: Daphne

Summary: Fixed co2prof vs irt file name conflict, measured equipment locations, cows around, repaired cow fence at soil co2

Tonzi
2020-03-12

Daphne and I arrived at about 11:15. It was clear sunny and warm. We got a little rain last week but things still look dry here. The trees have started to put on leaves. About half the trees have new leaves but it is kind of patchy with the trees directly northwest of the tower mostly still bare.

I collect data at the Tower. Loggernet had written about 900 one-line files containing data from the Vaisala co2 profile and the original IRT system. I saw this starting to happen before I left last time but couldnâ€™t figure out why. Apparently I somehow name both data files the same. Loggernet was smart enough to figure out that the data was different and started a new file each time it collected data. Otherwise things seemed fine. Daphne helped me make a bunch of equipment location measurements around the tower.

The 7500s read:
Tower: 429.8ppm CO2, 457.0mmol/m3 H2O, 98.6kPa, 17.0C, 102.6SS
Floor: 432.4ppm CO2, 499.2mmol/m3 H2O, 98.6kPan 20.6C, 99.3SS

I collected the rest of the data from the data loggers including the FD chambers. The lithium power pack at the Road Well still seemed okay - it was slightly below 12V but only one charge status light had gone out. I left it in place especially since the water level is still below the sensor.

Daphne did the Moisture point, wells, DBH, and serviced the z-cams. We repaired the cow fence around the soil co2 system. There were cows hanging out at the water container when we arrived.

We left about 14:30

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2020-03-12	VR_well	57.43
2020-03-12	TZ_floor	30.11
2020-03-12	TZ_tower	34.78
2020-03-12	TZ_road	38.14

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower [1] => Floor_South [2] => Floor_West [3] => Soil_Transect_4 [4] => Soil_Transect_3 [5] => Soil_Transect_2 [6] => Soil_Transect_1 [7] => SoilCO2_West_A [8] => SoilCO2_West_B [9] => SoilCO2_West_C )

Date	DOY	Rep	Depth	Tower	Floor_South	Floor_West	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
2020-03-12	72	0	0-15cm	15	9.4	17.1	8.8	11.5	12.1	9.7	21.7	15.3	10
2020-03-12	72	0	15-30cm	18.8	13	21.3	13.6	24.6	25.2	10.9	19.4	10.9	19.1
2020-03-12	72	0	30-45cm	23.2	24.3	39.6	17.6	25.4	29.6	26.8	28.5	26.8	27.9
2020-03-12	72	0	45-60cm	34	17.6	41.4	21.1	36.5	41.7	23.9	40.3	43.4	42.5
2020-03-12	72	1	0-15cm	15.6	9.1	16.2	8.6	11.8	12.4	9.1	21.4	15.3	9.7
2020-03-12	72	1	15-30cm	19.4	13.3	21	13.3	24.6	24.9	12.1	20	9.3	19.1
2020-03-12	72	1	30-45cm	22.6	25.4	39.6	17.6	25.1	28.8	27.1	28.2	27.1	27.6
2020-03-12	72	1	45-60cm	33.4	17.3	41.4	21.3	36.5	41.4	24.5	40	44.3	42.3
2020-03-12	72	2	0-15cm			13.5
2020-03-12	72	2	15-30cm			21.7
2020-03-12	72	2	30-45cm			39.6
2020-03-12	72	2	45-60cm			41.4
2020-03-12	72	Avg	0-15cm	15.3	9.25	15.6	8.7	11.65	12.25	9.4	21.55	15.3	9.85	12.89	10	21
2020-03-12	72	Avg	15-30cm	19.1	13.15	21.33	13.45	24.6	25.05	11.5	19.7	10.1	19.1	17.71	10	21
2020-03-12	72	Avg	30-45cm	22.9	24.85	39.6	17.6	25.25	29.2	26.95	28.35	26.95	27.75	26.94	10	21
2020-03-12	72	Avg	45-60cm	33.7	17.45	41.4	21.2	36.5	41.55	24.2	40.15	43.85	42.4	34.24	10	21

mode = both
Moisture Point Probes VR
Array ( [0] => Flux_Tower [1] => Biomass_Cage [2] => Solar_Panels )

Date	DOY	Rep	Depth	Flux_Tower	Biomass_Cage	Solar_Panels	Avg	Spacial Count	Measurement Count
2020-03-12	72	0	0-15cm	7.7	3.9
2020-03-12	72	0	15-30cm	19.1	10.6
2020-03-12	72	0	30-45cm	10.1	19.5
2020-03-12	72	0	45-60cm	20.8	20.5	31.1
2020-03-12	72	1	0-15cm	8	4.2
2020-03-12	72	1	15-30cm	19.7	11.2
2020-03-12	72	1	30-45cm	10.3	20.1
2020-03-12	72	1	45-60cm	20.8	21.3	31.9
2020-03-12	72	2	0-15cm		3.6
2020-03-12	72	2	15-30cm		11.2
2020-03-12	72	2	30-45cm		20.7
2020-03-12	72	2	45-60cm		21.1
2020-03-12	72	Avg	0-15cm	7.85	3.9		5.88	2	5
2020-03-12	72	Avg	15-30cm	19.4	11		15.2	2	5
2020-03-12	72	Avg	30-45cm	10.2	20.1		15.15	2	5
2020-03-12	72	Avg	45-60cm	20.8	20.97	31.5	24.42	3	7

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2020-03-12	1	21.3
2020-03-12	102	12.3
2020-03-12	2	21.0
2020-03-12	3	13.9
2020-03-12	4	6.4
2020-03-12	6	15.2
2020-03-12	7	18.7
2020-03-12	72	5.0
2020-03-12	79	19.0
2020-03-12	8	2.2