Field Notes

<--2017-10-05 09:00:00 | 2017-10-18 12:30:00-->
Other sites visited today: Vaira | Tonzi
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Tonzi: 2017-10-05 11:00:00 (DOY 278)
Author: Joe Verfaillie
Others: Siyan

Summary: Standard fieldwork, tried to calibrate Vaisala CO2 probes but data logger problems, fixed tower solar charger, lost Tower phenocam images.

Tonzi
2017-10-05

Siyan and I arrived at about 11am. It was clear, sunny and warm with little to no wind, though there was a breeze above the canopy in the afternoon. Everything is still very dry.

Siyan did all the standard fieldwork including collecting all the data. We did not do water potential this time because the leaves were so brittle and the values so extreme last time as to make the quality of the measurements questionable.

I started to do the Vaisala CO2 probe calibrations again. I did some rewiring moving the two SHF plates to the last two differential channels to make room for two more TCs. I donâ€™t know where the sensing end of the fourth one from the tree location is, but it is hooked up and reading. I uploaded a version of the program for calibration that read the sensors continuously and saved 10sec sampled data, but it would not run properly. The data logger status reported that the internal battery was low. And the clock was resetting on power cycles. I think I need to replace the battery before I can do much more with this data logger. The OS was v18, v19 is the most recent. Also the version of Loggernet on the silver laptop seems to have a problem compiling Edlog programs â€“ control port 4 was stuck on. The white laptop has a newer version of Loggernet that seems to work better.

At the Tower, I did a factory reset on the Kid solar controller. This allowed it to detect the 24V battery bank and use the proper charging parameters. Solar input went from almost nothing to more than 500W. I also added "High Voltage" and "80VDC" labels to parts of the solar system. I finger tightened the U-bolts on the solar panels that were loosened to get at the junction boxes, but they could still use a wrench.

I was hoping to restart the CO2 profile system on the Tower, but didn't have the DC-DC converter I needed. I might need two as the solenoids and the pump pull quite a bit of power.

I might have lost the CFM card for the Tower phenocam images.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2017-10-05	TZ_floor	25.8
2017-10-05	TZ_road	35.2
2017-10-05	TZ_tower	30.7
2017-10-05	VR_pond	13.64

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_East_3 [23] => Floor_West_3 [24] => Soil_Transect_4_3 [25] => Soil_Transect_3_3 [26] => Soil_Transect_2_3 [27] => Soil_Transect_1_3 [28] => SoilCO2_West_A_3 [29] => SoilCO2_West_B_3 [30] => SoilCO2_West_C_3 [31] => Tower_4 [32] => Floor_South_4 [33] => Floor_East_4 [34] => Floor_West_4 [35] => Soil_Transect_4_4 [36] => Soil_Transect_3_4 [37] => Soil_Transect_2_4 [38] => Soil_Transect_1_4 [39] => SoilCO2_West_A_4 [40] => SoilCO2_West_B_4 [41] => 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_East_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_East_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
2017-10-05	278	0	nan	2.1	7.2	3.3	1.1	7.8	2.7	0.4	3.6	4.7	3.3	13	12.1	1.4	6.9	13.9	11.3	4.5	7.8	0.9	11.2	13.7	7.6	13.7	13.4	9.5	25.1	15.6	13.1	16.2	15.4	13.1	15.3	2.4	16.5	16.8	10.7	17.9	27.6	11	26.5	13.6	23.9
2017-10-05	278	1	nan	2.4	4.8	8.3		6.3	3	0.7	3	2.5	3.6	13	12.4	0.8	8.1	14.2	11.2	4.2	7.2	1.5	11.2	14	7.6	13.4	12.8	9.2	15.1	15.4	13.4	16.8	15.6	13.4	15.3	3.3	16.8	17	12.5	17.6	27.6	11	17	12.8	23.6
2017-10-05	278	Avg	0-15cm																																											0
2017-10-05	278	Avg	15-30cm																																											0
2017-10-05	278	Avg	30-45cm																																											0
2017-10-05	278	Avg	45-60cm																																											0

mode = both
Moisture Point Probes VR
Array ( [0] => Solar_Panels_1 [1] => Flux_Tower_1 [2] => Gate_1 [3] => Biomass_Cage_1 [4] => Solar_Panels_2 [5] => Flux_Tower_2 [6] => Gate_2 [7] => Biomass_Cage_2 [8] => Solar_Panels_3 [9] => Flux_Tower_3 [10] => Gate_3 [11] => Biomass_Cage_3 [12] => Solar_Panels_4 [13] => Flux_Tower_4 [14] => Gate_4 [15] => Biomass_Cage_4 )

0000

Date	DOY	Rep	Depth	Solar_Panels_1	Flux_Tower_1	Gate_1	Biomass_Cage_1	Solar_Panels_2	Flux_Tower_2	Gate_2	Biomass_Cage_2	Solar_Panels_3	Flux_Tower_3	Gate_3	Biomass_Cage_3	Solar_Panels_4	Flux_Tower_4	Gate_4	Biomass_Cage_4	Spacial Count
2017-10-05	278	0	nan	2.1	1.3	0.6	0.4	5.3	6.5	5.7	4.2	15.9	4.9	10.1	14	27.6	15.6	11.6	17.6
2017-10-05	278	1	nan	2.1	1.4	0.3	0.7	9.3	6.6	5.1	3.9	15.9	4.2	8.7	14.8	28.2	15.6	10.5	17.9
2017-10-05	278	Avg	0-15cm																	0
2017-10-05	278	Avg	15-30cm																	0
2017-10-05	278	Avg	30-45cm																	0
2017-10-05	278	Avg	45-60cm																	0

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2017-10-05	1	6.6
2017-10-05	102	5.9
2017-10-05	2	20.4
2017-10-05	245	5.1
2017-10-05	3	6.8
2017-10-05	4	6.4
2017-10-05	5	2.5
2017-10-05	7	18.8
2017-10-05	72	5.2
2017-10-05	79	4.1
2017-10-05	8	21.8