Field Notes

<--2020-03-12 11:15:00 | 2020-04-18 10:00:00-->
Other sites visited today: Vaira

Tonzi: 2020-04-01 11:45:00 (DOY 92)
Author: Joe Verfaillie
Others: Kyoko, Hisashi

Summary: Fieldwork with help from my family, pond is only half full, tree slowly putting on leaves, troubleshooting COSMOS - maybe working again, power outage at soil co2 - fixed

Tonzi
2020-04-01

Kyoko, Hisashi and I arrived at about 11:45. It was partly cloudy, cool in the shadows and warm in the sun. There has been some rain and there are puddles in the road, but the pond is still only half full. The trees are still putting on leaves slowly â€“ some tree are almost fully leafed out and others barely have any. We met Rob on the way out mending fences. He said his land is 680acres. He also said folks in the area are still struggling with wild pigs. He killed one that was about 170 pounds but not too good to eat â€“ too tough. He asked if I knew anyone that had COVID-19. At this time, I donâ€™t.

I collected the data, serviced and z-cams, and read the dendrometers. Hisashi and Kyoko did the soil moisture and the well measurements.
The Tower read: 404.9ppm CO2, 327.3mmol/m3 H2O, 98.9kPa, 14.6C, 101.1SS
The Floor read: 420.4ppm CO2, 447.7mmol/m3 H2O, 99.0kPa, 16.7C, 102.8SS

The power was out at the soil CO2 system. I stepped on some wires last time out and apparently pulled the ground wire from the batteries loose from the solar controller. This system needs a complete overhaul. I restored the power, but no soil CO2 data or FD Chamber data for the last three weeks.

The lithium power pack at the road well was down to three of five power lights and the Global Water sensor was reporting 10.6V. I swapped the power pack out with one of our new larger packs. The sensor was reading about 0.5ft of water.

The COSMOS system has not been reporting data since Dennis and I messed with it back on June 13th. I checked on it and didnâ€™t see anything wrong. There were about 2000 files on its SD card but all small so plenty of space left. I copied the files off for later, put the card back and restarted the system. Just before leaving I talk to a technician (Gary Womack ) who said he saw a couple of messages from the system. So maybe itâ€™s working again.

I realigned the IRTs pointed at the tree trunk slightly. The IRT system at the little tree hasnâ€™t connected for about 10 days but I didnâ€™t notice this until I was back in the lab. It doesnâ€™t look like a power problem so probably the data is okay on the CR1000.

We left about 14:45

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2020-04-01	VR_well	56.1
2020-04-01	TZ_road	37.6
2020-04-01	TZ_floor	29.2
2020-04-01	TZ_tower	33.7

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
2020-04-01	92	0	0-15cm	32	20.3	25.8	20	21.2	25.6	22	32.5	30.5	26.1
2020-04-01	92	0	15-30cm	31.6	34.4	32.6	28	32.3	31.6	19.4	27.4	20.3	31
2020-04-01	92	0	30-45cm	32.4	39.9	36	30.1	32.4	34.1	32.4	35.4	34.9	37.7
2020-04-01	92	0	45-60cm	40.8	48.6	42.3	33.7	43.4	48.8	33.4	44.5	49.7	48.3
2020-04-01	92	1	0-15cm		20.6	25.8	20.3	15.9	24.7	21.4	33.2	32.9	25.6
2020-04-01	92	1	15-30cm		34.4	32.3	28.3	31	31.3	19.7	26.8	19.4	30.1
2020-04-01	92	1	30-45cm	39.6	40.2	35.7	31.3	32.4	34.9	32.7	35.4	34.9	37.4
2020-04-01	92	1	45-60cm	41.1	48	42	34.5	43.4	48.3	33.4	44.8	49.4	46.6
2020-04-01	92	Avg	0-15cm	32	20.45	25.8	20.15	18.55	25.15	21.7	32.85	31.7	25.85	25.42	10	19
2020-04-01	92	Avg	15-30cm	31.6	34.4	32.45	28.15	31.65	31.45	19.55	27.1	19.85	30.55	28.68	10	19
2020-04-01	92	Avg	30-45cm	36	40.05	35.85	30.7	32.4	34.5	32.55	35.4	34.9	37.55	34.99	10	20
2020-04-01	92	Avg	45-60cm	40.95	48.3	42.15	34.1	43.4	48.55	33.4	44.65	49.55	47.45	43.25	10	20

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
2020-04-01	92	0	0-15cm	15.9
2020-04-01	92	0	15-30cm	30.4	19.1
2020-04-01	92	0	30-45cm	16.5	34.3
2020-04-01	92	0	45-60cm	27.9	31.9
2020-04-01	92	1	0-15cm	15.3	16.5
2020-04-01	92	1	15-30cm	30.1	17.6
2020-04-01	92	1	30-45cm	16.2	32.1
2020-04-01	92	1	45-60cm	28.5	30.5
2020-04-01	92	Avg	0-15cm	15.6	16.5	16.05	2	3
2020-04-01	92	Avg	15-30cm	30.25	18.35	24.3	2	4
2020-04-01	92	Avg	30-45cm	16.35	33.2	24.78	2	4
2020-04-01	92	Avg	45-60cm	28.2	31.2	29.7	2	4

No TZ grass heigth found

Grass Height VR 10

Date	Height reps (cm)										Location	Average	Samp	STDEV
2020-04-01	21	10	9	12	10	18	12	11	8	9	GH_ALL	12	10	4

Tree DBH

Date	Tag#	Reading (mm)
2020-04-01	1	22.7
2020-04-01	102	15.2
2020-04-01	2	22.2
2020-04-01	245	12.3
2020-04-01	3	14.8
2020-04-01	4	7.7
2020-04-01	6	15.4
2020-04-01	7	19.0
2020-04-01	72	6.5
2020-04-01	79	19.8
2020-04-01	8	1.8