Field Notes

<--2024-05-08 11:00:00 | 2024-06-04 08:15:00-->
Other sites visited today: Tonzi | Bouldin Corn | Bouldin Alfalfa | Hill Slough

Vaira: 2024-05-22 12:30:00 (DOY 143)
Author: Joe Verfaillie
Others:

Summary: Grasses turning brown, fixed west FD chamber, time to do end of season clip plots

Vaira
2024-05-22

I arrived at about 12:30 PDT after a stop in the Delta to help move the corn tower closer to the corn. It was clear and sunny but hazy and warm with a cool breeze not often enough. There was a huge bull rubbing itself on the gate when I arrived but he had wandered off by the time I got my keys out. The grasses are turning brown in all but the lowest spots. The water hole is still mostly full and the stream was running well. Veg height is complicated – somewhere between knee and shoulder high depending on where you stand. Call it 70cm.

The Davis Extension folks have taken their annual clip plots for biomass.

The west FD chamber had been left upside down last time from its performance check. I remembered that on the way home and had intended to fix it last week when we worked at Tonzi but just ran out of time. I fixed it this time.

I measured the well and collected the met, flux, FD and camera data. All seemed well.
The 7500 read: 428.1ppm CO2, 475.3mmol/m3 H2O, 30.0C, 99.3kPa, 103.5SS
There were lots of spider webs on all the eddy equipment that I wiped off

I went to the pond. Nasty thistles have grown up along the dam making it hard to reach the data logger box and the staff gauges. I knocked them down in the needed places.

I left at about 13:30 PDT

Field Data

No tank data

Well Depth

DateLocationDepth (feet)
2024-05-22VR_well52.63
2024-05-22VR_pond19.26
2024-05-22TZ_floor18.25
2024-05-22TZ_road27.55
2024-05-22TZ_tower22.55
2024-05-22HS5.2

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

No data found for VR_soilco2.
2 VR_pond graphs found

Explore the graph:Pond Level and Rain in a new window

Explore the graph:Vaira Pond Temperatures in a new window

Can't check TZVR_mixed
3 VR_fd graphs found

Explore the graph:Varia Forced Diffusion Soil CO2 Flux in a new window

Explore the graph:Vaira Forced Diffusion CO2 Concentration in a new window

Explore the graph:VR Forced Diffusion Temperature in a new window

No data found for VR_processed.
4 VR_arable graphs found

Explore the graph:Incoming bands in a new window

Explore the graph:Reflected Bands in a new window

Explore the graph:Solar Radiation in a new window

Explore the graph:Pressure and RH in a new window

6 VR_soilvue graphs found

Explore the graph:VR SoilVUE Profile B VWC in a new window

Explore the graph:VR SoilVue B Temperature in a new window

Explore the graph:VR SoilVue A Temperature in a new window

Explore the graph:VR SoilVue C Temperature in a new window

Explore the graph:VR SoilVUE Profile A VWC in a new window

Explore the graph:VR SoilVUE Profile C VWC in a new window