Field Notes

<--2019-10-09 10:00:00 | 2019-10-24 09:00:00-->
Other sites visited today: Vaira | Tonzi

Tonzi: 2019-10-09 11:15:00 (DOY 282)
Author: Daphne Szutu
Others: Siyan

Summary: Regular data collection, trees starting to lose leaves

2019-10-09
Tonzi

Siyan and I arrived at 11:15. It was a sunny, breezy and day, with blue skies and hazy horizons. It was mega windy driving through the Delta--there were some small tree branches on the road. Most of the Bay Area hills are under a Red Flag warming, and classes were canceled on campus due to an imminent PG&E power shutoff. All of the grass and wildflowers were dead. The oak trees were starting to lose their leaves, and about 1/3 of the trees had sections of brown leaves.

I downloaded met/tower CO2 profile/FLIR images from the latte panda. I also downloaded GHG USB phenocam, zcam, FLIR cal panel, floor well, soil CO2, and IRT data. I cleaned the radiometers and z-cams. I couldn't connect to the Licor systems on the white netbook, only the silver netbook, even though the Ethernet settings seemed to be the same.

I also went to download the road well data, but accidentally deleted the history before saving a file, so we are missing the last two weeks of data. When the Road well global logger was 11:30, I reset the clock to 11:27 to match the laptop time.

Siyan did her regular data collection: soil moisture, well depths, dendrometers. We did not do mid-day water potential since the trees have already started dropping their leaves.

TF LI-7500 readings:
CO2 408ppm
H2O 282ppm
T 20.1C
P 98.8kPa
SS 96 --> 99 after cleaning

TT LI-7500 readings:
CO2 415ppm
H2O 286ppm
T 19.7C
P 98.7kPa
SS 110

We left at 12:50. We left the fence chargers off.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2019-10-09	VR_well	28.3
2019-10-09	TZ_floor	26.4
2019-10-09	TZ_tower	31.2
2019-10-09	TZ_road	35.7

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
2019-10-09	282	0	0-15cm	4.7	8.3	8.3	0.6	4.7	5.6	0.3	10.3	2.1	0.1
2019-10-09	282	0	15-30cm	10.3	4.8	3.2	8.1	14.5	12.7	4.5	8.1	0.3	12.1
2019-10-09	282	0	30-45cm	13.1	7.3		10.1	12.3	17	13.1	15.9	14.8	14
2019-10-09	282	0	45-60cm	16.9			11.3	18.8	23.9	12.2	14.8	17.6	22.5
2019-10-09	282	1	0-15cm	4.5	10.9	8.6	0.6	5.6	5	0.1	10.6	1.5	1.5
2019-10-09	282	1	15-30cm	10.6	4.2	8.7	8.1	13.9	11.2	4.5	8.1	0.3	12.1
2019-10-09	282	1	30-45cm	12.9	8.7		10.1	12.3	16.5	13.4	15.9	14.5	12
2019-10-09	282	1	45-60cm	17.6			11.6	19.3	24.8	12.2	15	17.9	23.4
2019-10-09	282	Avg	0-15cm	4.6	9.6	8.45	0.6	5.15	5.3	0.2	10.45	1.8	0.8	4.7	10	20
2019-10-09	282	Avg	15-30cm	10.45	4.5	5.95	8.1	14.2	11.95	4.5	8.1	0.3	12.1	8.02	10	20
2019-10-09	282	Avg	30-45cm	13	8		10.1	12.3	16.75	13.25	15.9	14.65	13	12.99	9	18
2019-10-09	282	Avg	45-60cm	17.25			11.45	19.05	24.35	12.2	14.9	17.75	22.95	17.49	8	16

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
2019-10-09	282	0	0-15cm	3.6	3
2019-10-09	282	0	15-30cm	12.1	7.5	12.6
2019-10-09	282	0	30-45cm	6.2	16.8	16.8
2019-10-09	282	0	45-60cm	18.5	19.9	28.5
2019-10-09	282	1	0-15cm	4.2	2.7
2019-10-09	282	1	15-30cm	12.1	7.5	12.1
2019-10-09	282	1	30-45cm	5	16.5	15.6
2019-10-09	282	1	45-60cm	16.8	19.6	28.2
2019-10-09	282	Avg	0-15cm	3.9	2.85		3.38	2	4
2019-10-09	282	Avg	15-30cm	12.1	7.5	12.35	10.65	3	6
2019-10-09	282	Avg	30-45cm	5.6	16.65	16.2	12.82	3	6
2019-10-09	282	Avg	45-60cm	17.65	19.75	28.35	21.92	3	6

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2019-10-09	1	19.3
2019-10-09	102	9.1
2019-10-09	2	12.9
2019-10-09	245	10.4
2019-10-09	3	19.0
2019-10-09	4	5.0
2019-10-09	5	15.5
2019-10-09	7	19.0
2019-10-09	72	3.6
2019-10-09	79	15.9
2019-10-09	8	7.2