Field Notes

<--2020-05-05 10:00:00 | 2020-05-23 10:30:00-->
Other sites visited today: Vaira | Tonzi

Tonzi: 2020-05-05 12:15:00 (DOY 126)
Author: Daphne Szutu
Others: Siyan

Summary: Regular data collection/cleaning, trees look good, LattePanda USB not mounting

2020-05-05
Tonzi

Siyan and I arrived around 12:15 in our separate cars. This is our 8th week of sheltering in place, with at least 3 more weeks to go. It was a warm and sunny day with blue skies and a clear view of the Sierras. The trees are looking full and light green. The grass is greener here than at Vaira, and there were some blooming wildflowers. The pond looked relatively full.

I downloaded data: tower Latte Panda, Tower GHG, phenocam, 3 zcams, calibration panel 23x by floor solar panels, Floor GHG, floor well, soil CO2 CR23x, 2 FD chambers by the soil CO2, and the IRT CR1000. I did not clear the FD memory.

I also power-cycled the tower met CR1000 to resolve a PRI issue. Siyan downloaded data from the road well and took manual measurements of well levels, soil moisture, and dendrometers. We took veg height measurements.

I cleaned the tower and floor radiometers. Siyan swapped the IRT CR1000 battery. The wires are taped to the battery for nowâ€”next time we should bring small ends to crimp on. The old battery was soldered on; I brought it back to the lab and placed it downstairs in the small cardboard box next to the battery charger. The voltage was at 13+, so Iâ€™m not sure why the IRT datalogger was not sending data to the LattePanda.

Through the LattePanda, I checked the CR6 datalogger program that was running the zcam trigger. The program matched what Joe had sent in his e-mail, and the CR6 clock was good. I wanted to copy the program down, but the Cruzer USB stick was not showing up in the LattePanda Windows Explorer. I could see it in the Device Manager, but it had the yellow warning sign with a message similar to â€œdevice not started properly.â€ I tried restarting the LattePanda, using another USB stick, and inserting the USB stick into the LattePanda directly (instead of through the USB extension cable), but none of that worked. Joe said heâ€™s had similar issues before, and maybe there is something wrong with the USB port. I tried restarting CRBasic again to take a picture of the program, but CRBasic was freezing when I tried to open any existing or new program (Connect Screen seemed fine). I then restarted the LattePanda, but the restart froze halfway through. I did a hard restart and things seemed to start ok, so I left it as is. I think the data will still be saved in the individual dataloggers (including the FLIR images?).

TF LI-7500 readings:
CO2 403ppm
H2O 354ppm
T 27.5C
P 99.5kPa
SS 94 --> 100 after cleaning

TT LI-7500 readings:
CO2 415ppm
H2O 344ppm
T 24.8C
P 99.4kPa
SS 100

We left around 15:30.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2020-05-05	VR_well	54.4
2020-05-05	TZ_floor	27.4
2020-05-05	TZ_tower	31.2
2020-05-05	TZ_road	35.9

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
2020-05-05	126	0	0-15cm	8.8	5.6	10.3	0.3	1.6	10	5.3	16.2	10	8.8
2020-05-05	126	0	15-30cm	15.8	13.1	17	13.1	19.1	21	7.8	14.8	6.9	18.8
2020-05-05	126	0	30-45cm	21.8	24.3	21.8	16.9	21.5	25.1	22.59	24.8	23.5	25.7
2020-05-05	126	0	45-60cm	33.1	25.6	36.5	20.5	37.1	41.4	21.3	39.1	39.1	41.7
2020-05-05	126	1	0-15cm	9.7	5.9	10.3	2.7	1.1	11.1	5.9	16.8	10.3	9.4
2020-05-05	126	1	15-30cm	15.8	12.1	16.7	11.8	18.8	20.6	7.8	13.3	6.6	19.4
2020-05-05	126	1	30-45cm	21.8	24	21.8	16.8	21.8	25.1	23.2	23.7	22.9	25.7
2020-05-05	126	1	45-60cm	34	35.4	34.8	21.1	36.5	41.4	21.9	39.4	41.1	42.5
2020-05-05	126	Avg	0-15cm	9.25	5.75	10.3	1.5	1.35	10.55	5.6	16.5	10.15	9.1	8.01	10	20
2020-05-05	126	Avg	15-30cm	15.8	12.6	16.85	12.45	18.95	20.8	7.8	14.05	6.75	19.1	14.52	10	20
2020-05-05	126	Avg	30-45cm	21.8	24.15	21.8	16.85	21.65	25.1	22.9	24.25	23.2	25.7	22.74	10	20
2020-05-05	126	Avg	45-60cm	33.55	30.5	35.65	20.8	36.8	41.4	21.6	39.25	40.1	42.1	34.18	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
2020-05-05	126	0	0-15cm	3.6	2.4
2020-05-05	126	0	15-30cm	13.6	8.1
2020-05-05	126	0	30-45cm	7	7.3
2020-05-05	126	0	45-60cm	18.5	18.8
2020-05-05	126	1	0-15cm	3	4.3
2020-05-05	126	1	15-30cm	13.9	7.8
2020-05-05	126	1	30-45cm	7.3	18.2
2020-05-05	126	1	45-60cm	17.9	19.9
2020-05-05	126	Avg	0-15cm	3.3	3.35	3.33	2	4
2020-05-05	126	Avg	15-30cm	13.75	7.95	10.85	2	4
2020-05-05	126	Avg	30-45cm	7.15	12.75	9.95	2	4
2020-05-05	126	Avg	45-60cm	18.2	19.35	18.78	2	4