Field Notes

<--2017-08-25 10:48:00 | 2017-09-14 09:30:00-->
Other sites visited today: Vaira

Tonzi: 2017-09-07 12:00:00 (DOY 250)
Author: Daphne Szutu
Others: Dennis, Siyan, Joe

Summary: Regular data collection, many brown trees, updated tower met CR1000 program, brought new pressure bomb compressed gas cylinder

2017-09-07
Tonzi

We arrived at 12:00. It was warm and sunny, with some clouds. Some of the trees were completely brown.

Dennis collected soil moisture measurements. Siyan did her usual field work and took water potential (pressure bomb) measurements. Joe brought a full compressed gas cylinder ("Breathing Air") for pressure bomb measurements. Siyan also reset a number of the dendrometers that were maxing out. Joe fixed the broken dendrometer on tree #102 the current circumference is 80.2cm. The dendrometer on Tree C6 is broken - its current circumference is 38.7cm.

On the tower, I downloaded tower met, tower GHG, and phenocam CF card data. I also collected floor GHG and soil CO2 data. Joe collected the 2 tables from the floor met datalogger. I downloaded the zcam data to the black field laptop.

I updated the program for tower met to v20170907 to fix some radiation data that were reading noise ~0. I updated the DifChan parameter for the difPAR and LED instructions, and the numbers look more reasonable now. difPAR and totPAR were also reversed, so I changed their order in the program. PAR channels had some NAN gaps; I tightened the screws and moved PARin to channel 25.

Joe set up a tree NDVI out field-stop sensor sn 943203017 near the floor met data logger using cable ties and wired and programmed the sensor to the floor met data logger.

We left at 14:30.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2017-09-07	TZ_floor	23.8
2017-09-07	TZ_road	33.2
2017-09-07	TZ_tower	28.7
2017-09-07	VR_pond	14.3

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

Date	DOY	Rep	Depth	Tower	Floor_South	Floor_East	Floor_West	Soil_Transect_4	Soil_Transect_2	SoilCO2_West_A	SoilCO2_West_B	SoilCO2_West_C	Avg	Spacial Count	Measurement Count
2017-09-07	250	0	0-15cm	2.1	3.7	6.2	10.4	1.3	3.6	4.2	5.6	2.9
2017-09-07	250	0	15-30cm	13.3	12.1	9.7	7.5	8.4	12.4	9	0.3	11.8
2017-09-07	250	0	30-45cm	15.4	8.4	15.1	12.9	9.2	16.5	17.8	16.2	14.3
2017-09-07	250	0	45-60cm	17	3	15.3	20.2	11	28.5	17.9	14.5	25.9
2017-09-07	250	1	0-15cm	2.4	3.7	6.2	3.9	1	3.3	4.2	5.6	4
2017-09-07	250	1	15-30cm	13.6	12.7	10.6	3.2	8.7	12.1	7.8	0.6	12.4
2017-09-07	250	1	30-45cm	15.6	8.5	14	13.7	9.2	16.8	17.8	15.9	14
2017-09-07	250	1	45-60cm	16.5	3	14.8	17.6	11.3	28.8	17.8	1512.4	25.6
2017-09-07	250	2	0-15cm	2.7	4.8	5.3	10.3	1.6	4.2	3.6	5.3	1
2017-09-07	250	2	15-30cm	13.3	12.1	11.8	2.9	8.4	12.4	8.4	1.2	11.8
2017-09-07	250	2	30-45cm	15.1	7.8	14	12.9	9.5	16.8	17.3	15.9	14.5
2017-09-07	250	2	45-60cm	17	3.3	14.8	18.5	11.3	29.1	17.3	15	25.6
2017-09-07	250	Avg	0-15cm	2.4	4.07	5.9	8.2	1.3	3.7	4	5.5	2.63	4.19	9	27
2017-09-07	250	Avg	15-30cm	13.4	12.3	10.7	4.53	8.5	12.3	8.4	0.7	12	9.2	9	27
2017-09-07	250	Avg	30-45cm	15.37	8.23	14.37	13.17	9.3	16.7	17.63	16	14.27	13.89	9	27
2017-09-07	250	Avg	45-60cm	16.83	3.1	14.97	18.77	11.2	28.8	17.67	513.97	25.7	72.33	9	27

mode = both
Moisture Point Probes VR
Array ( [0] => Solar_Panels [1] => Flux_Tower [2] => Gate [3] => Biomass_Cage )

Date	DOY	Rep	Depth	Solar_Panels	Flux_Tower	Gate	Biomass_Cage	Avg	Spacial Count	Measurement Count
2017-09-07	250	0	0-15cm	3	1	1.8	3
2017-09-07	250	0	15-30cm	10	6.3	5.1	3.5
2017-09-07	250	0	30-45cm	15.1	3.9	9.8	15.4
2017-09-07	250	0	45-60cm	29.4	15	12.8	18.8
2017-09-07	250	1	0-15cm		0.4	2.1	1
2017-09-07	250	1	15-30cm		6.6	4.8	3.9
2017-09-07	250	1	30-45cm		3.9	9.8	15.1
2017-09-07	250	1	45-60cm		14.8	12.2	18.5
2017-09-07	250	2	0-15cm		7	1.5	1
2017-09-07	250	2	15-30cm		5.4	5.7	3.5
2017-09-07	250	2	30-45cm		5	9.8	15.1
2017-09-07	250	2	45-60cm		14.8	11.9	18.2
2017-09-07	250	Avg	0-15cm	3	2.8	1.8	1.67	2.32	4	10
2017-09-07	250	Avg	15-30cm	10	6.1	5.2	3.63	6.23	4	10
2017-09-07	250	Avg	30-45cm	15.1	4.27	9.8	15.2	11.09	4	10
2017-09-07	250	Avg	45-60cm	29.4	14.87	12.3	18.5	18.77	4	10

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2017-09-07	1	25.6
2017-09-07	1	6.1
2017-09-07	102	5.2
2017-09-07	2	20.5
2017-09-07	245	23.9
2017-09-07	245	5.0
2017-09-07	3	23.5
2017-09-07	3	5.5
2017-09-07	4	6.3
2017-09-07	4	22.0
2017-09-07	5	22.1
2017-09-07	5	2.6
2017-09-07	7	17.7
2017-09-07	72	23.6
2017-09-07	72	5.2
2017-09-07	79	22.4
2017-09-07	79	5.3
2017-09-07	8	21.8

Water Potential - mode: raw

Time	Species	Tree	readings (bar)
2017-09-07 13:14:00	OAK	102	-27	-52	-47
2017-09-07 13:14:00	OAK	35	-47	-48	-40
2017-09-07 13:14:00	OAK	92	-28	-42	-48
2017-09-07 13:44:00	PINE	OLD	-2	-16	-21
2017-09-07 13:44:00	PINE	YNG	-10	-2	-1