Field Notes

<--2012-04-05 09:30:00 | 2012-04-23 08:30:00-->
Other sites visited today: Tonzi | Tonzi
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Vaira: 2012-04-19 09:30:00 (DOY 110)
Author: Joe Verfaillie
Others: Siyan, Naama, Rohna

Summary: Naama did an EMI survey, tower computer had crashed and would not reboot, brought in diffuse PAR sensor for cable repair.

Vaira
2012-04-19

I arrived about 9:30PDT with Siyan, Naama and Rohna after dropping Laurie off at Tonzi. It was clear, sunny and warm with a light westerly breeze. Everything is very green. The trees don't look completely leafed out et to me. There are still big puddles on the road and the water hole is completely full.

I got Naama started with an EMI survey over a 200x200m grid roughly centered on the tower.

The tower computer was hung up in a restart. I tried all sorts of things to get it to reboot, but failed. We removed the computer for repair work in the lab. I was able to recover data up until the 16th from the disk in the lab.

The data logger and multiplexor seemed to be running okay. I down loaded all the data from the CR23X. The cable for the diffuse PAR sensor needed repair, so we removed the sensor and cable to bring back to the lab.

The pyranometer on the tower still has condensation in its dome.

Siyan downloaded data from the soil CO2 CR10X.

The Moisture Point reader had a dead battery.

The soil co2 system has three transmitter with LCDs. Readings from the LCDs vs the data logger voltages:
Probe Depth LDC voltage
II-2 4cm 3930ppm 940mV
II-3 8cm 1.24% 997
III-3 8cm 0.51% 571

The solar system read 13.7V, 12.8A solar, 1.4A load

Siyan and I left for Tnozi about 11:30 leaving Naama and Rohna to do the EMI survey.

Field Data

No tank data

Well Depth

DateLocationDepth (feet)
2012-04-19TZ_floor24.3
2012-04-19TZ_road32.8
2012-04-19TZ_tower28.3

No TZ Moisture Point data found

No VR Moisture Point data found

No TZ grass heigth found

No VR grass heigth found

No VR Tree DBH found

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

Explore the graph:Temperatures in a new window

Explore the graph:System Power Voltage in a new window

Explore the graph:Soil Temperatures Set 1 in a new window

Explore the graph:Soil Temperatures Set 2 in a new window

Explore the graph:Soil Temperature Set 3 in a new window

Explore the graph:Soil Temperature at -4cm in a new window

Explore the graph:Soil Heat Flux in a new window

Explore the graph:Soil Moisture in a new window

Explore the graph:Photosynthetic Active Radiation in a new window

Explore the graph:Short/Long Wave Radiation in a new window

Explore the graph:LED sensor in a new window

Explore the graph:Vaira PPT in a new window

Explore the graph:Peltier SHF Plates in a new window

Explore the graph:Peltier SHF Temperatures in a new window

Explore the graph:LED NDVI in a new window

Explore the graph:NDVI SRS Raw Data in a new window

2 VR_flux graphs found

Explore the graph:CO2 Density in a new window

Explore the graph:Sonic Wind in a new window

6 VR_soilco2 graphs found

Explore the graph:VR West Eosense Profile in a new window

Explore the graph:VR North Vaisala Profile in a new window

Explore the graph:Soil CO2 West Temperatures in a new window

Explore the graph:Soil CO2 North Temperatures in a new window

Explore the graph:Soil CO2 East Temperatures in a new window

Explore the graph:VR East Vaisala Profile in a new window

No data found for VR_pond.
Can't check TZVR_mixed
No data found for VR_fd.
No data found for VR_processed.
No data found for VR_arable.
No data found for VR_soilvue.