Field Notes

<--2021-09-01 10:55:00 | 2021-10-06 11:00:00-->
Other sites visited today: Tonzi

Vaira: 2021-09-16 11:00:00 (DOY 259)
Author: Joe Verfaillie
Others:

Summary: Standard fieldwork, checked ethernet lines, Moisture Point rods might be dead.

Vaira
2021-09-16

I arrived at 11:00 PDT. It was clear but hazy and relatively cool for this time of year. There was a tiny bit of rain about a week ago from a passing thunderstorm but didn’t seem to do more than pockmark the dust. Most trees have some brown leaves, and few are mostly brown and a few are still mostly green. The grass seemed shorter (more grazed) than last time and I see young cows in the phenocam photos.

I measured the well but did not go to the pond.

I measured the Moisture Point at the biomass enclosure which seemed okay, but afterwards I found the bottom pin broken off and stuck in the cable connector. Then at the rod near the solar panels I noticed that the bottom pin was bent and broke when I tried to straighten it. This rod is also missing the top pin and didn’t read at all. So it’s possible we have no more functioning Moisture Point rods at Varia.

I collected the met, flux, camera and FD chamber data. All seemed well.
The 7500 read: 411.9ppm CO2, 536.5mmol/m3 H2O, 99.1kPa, 24.8C, 102.6SS

I looked at the two Ethernet cables that run between the two towers. I cut the connector off the cable still in the camera case, moved the cable to inside the data logger box and put a new connector on it. This cable worked. I tried to test the continuity in the older cable but failed. Either the cable is completely broken or the adapters I was using limit continuity. I put a new connector on the end that was cut but could not communicate on it.

I left at about 12:10 PDT

Field Data

No tank data

Well Depth

DateLocationDepth (feet)
2021-09-16VR_well60.4
2021-09-16TZ_floor32.15
2021-09-16TZ_road39.8
2021-09-16TZ_tower36.85

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower [1] => Soil_Transect_3 [2] => Soil_Transect_2 [3] => Soil_Transect_1 [4] => SoilCO2_West_A [5] => SoilCO2_West_B [6] => SoilCO2_West_C [7] => Soil_Transect_4 )

Date DOY Rep Depth
Tower
Soil_Transect_3
Soil_Transect_2
Soil_Transect_1
SoilCO2_West_A
SoilCO2_West_B
SoilCO2_West_C
Soil_Transect_4
Avg
Spacial Count
Measurement Count
2021-09-16 259 0 0-15cm 3 0.4 3 0.3 7.1 3 3.3
2021-09-16 259 0 15-30cm 10.6 12.4 10.3 4.2 5.7 1.7 10.6 4.5
2021-09-16 259 0 30-45cm 13.4 11.7 15.9 12.9 14.3 14 10.1 9.2
2021-09-16 259 0 45-60cm 15.9 19.1 26.5 13 15 6.2 11 10.5
2021-09-16 259 1 0-15cm 2.7 0.1 2.4 0.1 6.5 3 2.4 0.3
2021-09-16 259 1 15-30cm 12.1 12.1 11.5 3.2 6.6 1.4 10.6 5.1
2021-09-16 259 1 30-45cm 14.3 11.2 14.8 12.3 15.1 13.7 10.6 9
2021-09-16 259 1 45-60cm 17.9 19.6 25.9 13.3 15.6 5.9 11.6 10.5
2021-09-16 259 Avg 0-15cm 2.85 0.25 2.7 0.2 6.8 3 2.85 0.3 2.37 8 15
2021-09-16 259 Avg 15-30cm 11.35 12.25 10.9 3.7 6.15 1.55 10.6 4.8 7.66 8 16
2021-09-16 259 Avg 30-45cm 13.85 11.45 15.35 12.6 14.7 13.85 10.35 9.1 12.66 8 16
2021-09-16 259 Avg 45-60cm 16.9 19.35 26.2 13.15 15.3 6.05 11.3 10.5 14.84 8 16

mode = both
Moisture Point Probes VR
Array ( [0] => Biomass_Cage )

Date DOY Rep Depth
Biomass_Cage
Avg
Spacial Count
Measurement Count
2021-09-16 259 0 0-15cm 0.7
2021-09-16 259 0 15-30cm 2.6
2021-09-16 259 0 30-45cm 11.5
2021-09-16 259 0 45-60cm 15
2021-09-16 259 1 0-15cm 0.4
2021-09-16 259 1 15-30cm 3.2
2021-09-16 259 1 30-45cm 11.5
2021-09-16 259 1 45-60cm 15
2021-09-16 259 Avg 0-15cm 0.55 0.55 1 2
2021-09-16 259 Avg 15-30cm 2.9 2.9 1 2
2021-09-16 259 Avg 30-45cm 11.5 11.5 1 2
2021-09-16 259 Avg 45-60cm 15 15 1 2

No TZ grass heigth found

No VR grass heigth found

Tree DBH

DateTag#Reading (mm)

No water potential data found

No VR Grass Biomass data found

No VR OakLeaves Biomass data found

No VR PineNeedles Biomass data found

0 photos found

Graphs display:
9 sets found

16 VR_met graphs found

Temperatures

System Power Voltage

Soil Temperatures Set 1

Soil Temperatures Set 2

Soil Temperature Set 3

Soil Temperature at -4cm

Soil Heat Flux

Soil Moisture

Photosynthetic Active Radiation

Short/Long Wave Radiation

LED sensor

Vaira PPT

Peltier SHF Plates

Peltier SHF Temperatures

LED NDVI

NDVI SRS Raw Data

2 VR_flux graphs found

CO2 Density

Sonic Wind

2 VR_soilco2 graphs found

VR West Eosense Profile

Soil CO2 West Temperatures

2 VR_pond graphs found

Pond Level and Rain

Vaira Pond Temperatures

Can't check TZVR_mixed
3 VR_fd graphs found

Varia Forced Diffusion Soil CO2 Flux

Vaira Forced Diffusion CO2 Concentration

VR Forced Diffusion Temperature

4 VR_processed graphs found

VR VPD

NEE

Soil Water Content

Gap Filled GPP

4 VR_arable graphs found

Incoming bands

Reflected Bands

Solar Radiation

Pressure and RH

No data found for VR_soilvue.