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Field Notes

<--2001-03-13 10:53:00 | 2001-03-22 12:00:00-->
Other sites visited today: Tonzi

Vaira: 2001-03-15 10:00:00 (DOY 74)
Author: Dennis Baldocchi
Others:

Summary: Changed CR23x program, removed soil moisture/heat fluxes; T/RH sensor was dead for a few days.

March 15, D74

Visited Vaira Ranch ~1000.

Battery voltage is looking good. Since Ted took off the sealed lead acid battery we seem not to experience the large diurnal swing in voltage.

Changed CR23x program. Took off outputs of soil moisture and soil heat flux. Those sensors had been put back on the cr10x when it was repaired and were blank or junk as of recently. The change starts around 1400.

T/RH sensor was dead. It has been dead for a few days. We need to regress good T data with Tsonic to provide an estimate of air temperature for the met station and for correcting the WPL fluxes. We also need to regress the LI-COR 7500 humidity out put with the RH value to replace those data too.

Bird crap on pyranometer, cleaned it around ~1200

Downloaded data.

Put spikes on sonic to keep birds off.

Tu/Ponti et al conducting overnight respiration study

Took 4 samples of plant matter. Cows are keeping the grass short. But some grass is taller near fresh cow patties, Grass in enclosure is starting to grow as soil is warming. Some wild flowers are blooming in region.

We forgot to swap out irgas. Needs to be done next week.

Field Data

No tank data

No VR Well data found

No TZ Moisture Point data found

No VR Moisture Point data found

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

No data found for VR_soilco2.
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.

 
 

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This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.