Field Notes

<--2020-09-29 10:00:00 | 2020-10-22 12:30:00-->
Other sites visited today: East End | Vaira | Tonzi
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Tonzi: 2020-09-29 12:00:00 (DOY 273)
Author: Joe Verfaillie
Others: Siyan

Summary: Standard fieldwork, change Floor met 23x program, Global Water at road well reading zero

Tonzi
2020-09-29

I arrived at about 12:00 noon. Siyan was here slightly before me as I finished up things at Vaira. It was hot and dry with little to no wind. The air quality was moderate even with new fires burning in Napa. I could just barely see Ranch Seco from the tower.

Everything seemed to be running okay even though itâ€™s been five weeks since I last downloaded data. The tree IRT CR1000 lost its radio link but only a few days ago. Resetting the radio got it going again. I cleaned the IRT systems solar panel which was very dirty.

The road well is reading zero as the water level has dropped below the sensor. I spray some WD-40 into a few dendrometers (5, 6, 2, 4, 102 and 245) but did not touch them to see if it helped.

I collected the all the data. The FD chamber memory was 15% full and I did not clear it.

The Tower read: 423.6ppm CO2, 438.7mmol/m3 H2O, 99.1kPa, 33.2C, 98.9SS
The Floor read: 431.4ppm CO2, 445.2mmol/m3 H2O, 99.2kPa, 36.4C, 101.0SS

I update the program on the Floor Met 23x to stop recording the SRS NDVI sensor but forgot to remove and bring in the sensor.

I serviced the zcams.

Siyan did soil moisture, midday water potential, denrometers and well measurements.

I left at about 14:00

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2020-09-29	VR_well	59.2
2020-09-29	TZ_floor	30.6
2020-09-29	TZ_tower	35.2
2020-09-29	TZ_road	38.3

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower_1 [1] => Floor_South_1 [2] => Floor_West_1 [3] => Soil_Transect_4_1 [4] => Soil_Transect_3_1 [5] => Soil_Transect_2_1 [6] => Soil_Transect_1_1 [7] => SoilCO2_West_A_1 [8] => SoilCO2_West_B_1 [9] => SoilCO2_West_C_1 [10] => Tower_2 [11] => Floor_South_2 [12] => Floor_West_2 [13] => Soil_Transect_4_2 [14] => Soil_Transect_3_2 [15] => Soil_Transect_2_2 [16] => Soil_Transect_1_2 [17] => SoilCO2_West_A_2 [18] => SoilCO2_West_B_2 [19] => SoilCO2_West_C_2 [20] => Tower_3 [21] => Floor_South_3 [22] => Floor_West_3 [23] => Soil_Transect_4_3 [24] => Soil_Transect_3_3 [25] => Soil_Transect_2_3 [26] => Soil_Transect_1_3 [27] => SoilCO2_West_A_3 [28] => SoilCO2_West_B_3 [29] => SoilCO2_West_C_3 [30] => Tower_4 [31] => Floor_South_4 [32] => Floor_West_4 [33] => Soil_Transect_4_4 [34] => Soil_Transect_3_4 [35] => Soil_Transect_2_4 [36] => Soil_Transect_1_4 [37] => SoilCO2_West_A_4 [38] => SoilCO2_West_B_4 [39] => SoilCO2_West_C_4 )

0000

Date	DOY	Rep	Depth	Tower_1	Floor_South_1	Floor_West_1	Soil_Transect_4_1	Soil_Transect_3_1	Soil_Transect_2_1	Soil_Transect_1_1	SoilCO2_West_A_1	SoilCO2_West_B_1	SoilCO2_West_C_1	Tower_2	Floor_South_2	Floor_West_2	Soil_Transect_4_2	Soil_Transect_3_2	Soil_Transect_2_2	Soil_Transect_1_2	SoilCO2_West_A_2	SoilCO2_West_B_2	SoilCO2_West_C_2	Tower_3	Floor_South_3	Floor_West_3	Soil_Transect_4_3	Soil_Transect_3_3	Soil_Transect_2_3	Soil_Transect_1_3	SoilCO2_West_A_3	SoilCO2_West_B_3	SoilCO2_West_C_3	Tower_4	Floor_South_4	Floor_West_4	Soil_Transect_4_4	Soil_Transect_3_4	Soil_Transect_2_4	Soil_Transect_1_4	SoilCO2_West_A_4	SoilCO2_West_B_4	SoilCO2_West_C_4	Spacial Count
2020-09-29	273	0	nan	3.9	2.2	3.3	3.9	1.8	3	0.9	6.5	3	2.7	10	8.8	6	6	12.7	11.2	3.9	6	0.8	11.5	13.4	10.1	15.6	9.5	11.2	15	12.9	14.8	9.8	10.9	17	4.1	17.3	10.7	17	26.5	12.5	15.9	21	15.9
2020-09-29	273	1	nan	3.3	2.8	3.9	3.9	3	3	0.6	6.5	5.3	1.5	10.6	7.8	5.7	6	12.7	11.2	3.5	6.3	0.2	11.2	12.6	9.5	11.5	9.8	12	15.4	12.6	15.7	9.2	9.8	18.5	2.2	15.6	10.5	14.8	25.6	13.3	15.6	23.4	16.2
2020-09-29	273	Avg	0-15cm																																									0
2020-09-29	273	Avg	15-30cm																																									0
2020-09-29	273	Avg	30-45cm																																									0
2020-09-29	273	Avg	45-60cm																																									0

mode = both
Moisture Point Probes VR
Array ( [0] => Flux_Tower_1 [1] => Biomass_Cage_1 [2] => Flux_Tower_2 [3] => Biomass_Cage_2 [4] => Flux_Tower_3 [5] => Biomass_Cage_3 [6] => Flux_Tower_4 [7] => Biomass_Cage_4 )

0000

Date	DOY	Rep	Depth	Flux_Tower_1	Biomass_Cage_1	Flux_Tower_2	Biomass_Cage_2	Flux_Tower_3	Biomass_Cage_3	Flux_Tower_4	Biomass_Cage_4	Spacial Count
2020-09-29	273	0	nan	0.1	0.1	6.6	2.9	4.2	13.7	14.2	16.8
2020-09-29	273	1	nan	0.4	0.1	6.9	3.2	4.8	14	13.6	16.8
2020-09-29	273	Avg	0-15cm									0
2020-09-29	273	Avg	15-30cm									0
2020-09-29	273	Avg	30-45cm									0
2020-09-29	273	Avg	45-60cm									0

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2020-09-29	1	6.2
2020-09-29	2	5.2
2020-09-29	245	11.5
2020-09-29	3	15.2
2020-09-29	4	9.0
2020-09-29	6	16.9
2020-09-29	7	19.1
2020-09-29	72	8.9
2020-09-29	79	10.0

Water Potential - mode: raw

Time	Species	Tree	readings (bar)
2020-09-29 13:28:00	OAK	102	-36	-55	-35
2020-09-29 13:28:00	OAK	35	-49	-44	-32
2020-09-29 13:28:00	OAK	92	-29	-29	-35
2020-09-29 13:44:00	PINE	OLD	-4	-13	-20
2020-09-29 13:44:00	PINE	YNG	-15	-1	-6