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Field Notes

<--2012-08-08 16:30:00 | 2012-09-05 07:30:00-->
Other sites visited today: Tonzi | Tonzi

Vaira: 2012-08-22 10:30:00 (DOY 235)
Author: Joe Verfaillie
Others: Siyan, Sunny

Summary: Added CR1000 to collect flux data, removed old web cam, reset computer clock and data logger clocks, lots of brown leaves.

Vaira
2012-08-22

I arrived about 10:30 with Siyan and Sunny. It was clean, sunny and hot with a light breeze from the west. Many of the trees have brown leaves. Not so much a scattering of brown leaves on all trees but more of individual trees being mostly brown. The leaves were brown and dead looking and not so yellow and senescent. This was visible in trees from Twin Cities Road all the way to Tonzi. There may be less brown leaves here than at Tonzi.

The clock on the computer was 1 hour ahead set to PDT last time I was here (8-8) after it crashed and lossed its clock. The flux, soil CO2 and met were all on the bad time. Also, the met CR23X was an additional 15min ahead due to an offset that got put in the wrong part of its setup. The data loggers are supposed to have their clocks adjusted at 15 minutes past midnight, but the met data logger had a time zone offset of 15 minutes. When the data logger clock read 11:05 it was reset to 10:50.

I added a CR1000 data logger in the box with the sonic power and communication interface to collect the flux data in parallel with the computer. The binary, serial message from the sonic is being split and sent to both the data logger and the computer. Additionally the SDM data from the 7500 is being recorded by the CR1000. I removed the fine wire thermocouple from the flux system.

I removed the old web cam. I disconnected it from the power relay that is still running the Phenocam.

The USC guys put in a couple of fence posts behind the solar panels to mount a mast with and antenna and some electronics. I think the electronics will be mounted later, but there is a small solar panel and battery there. They made a little mess of the nearby ground, but it doesn’t look like they disturbed anything vital. There are only about four remote nodes visible from the tower location.

Field Data

No tank data

Well Depth

DateLocationDepth (feet)
2012-08-22TZ_floor27.4
2012-08-22TZ_road36.3
2012-08-22TZ_tower32

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

8 photos found

view of field site
20120822VR_CR1000.jpg ( 2012-08-22 12:32:27 ) Full size: 1920x1440
view of field site

view of field site
20120822VR_SiyanTowerNorth.jpg ( 2012-08-22 11:42:08 ) Full size: 1920x1440
view of field site

view of field site
20120822VR_SiyanTowerSouth.jpg ( 2012-08-22 11:41:00 ) Full size: 1920x1440
view of field site

view of field site
20120822VR_SonicPCIBox.jpg ( 2012-08-22 12:32:15 ) Full size: 1920x1440
view of field site

view of field site
20120822VR_USCRemoteNode.jpg ( 2012-08-22 12:38:21 ) Full size: 1920x1440
view of field site

view of field site
20120822VR_USCSpotMast.jpg ( 2012-08-22 11:41:39 ) Full size: 1920x1440
view of field site

Joe and Siyan at the site.
vaira_2012_08_22_103101.jpg ( 2012-08-22 11:25:48 ) Full size: 1296x960
Joe and Siyan at the site.

Joe, Sunny and Siyan on site
vaira_2012_08_22_110102.jpg ( 2012-08-22 10:55:40 ) Full size: 1296x960
Joe, Sunny and Siyan on site

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

6 VR_soilco2 graphs found

VR West Eosense Profile

VR North Vaisala Profile

Soil CO2 West Temperatures

Soil CO2 North Temperatures

Soil CO2 East Temperatures

VR East Vaisala Profile

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.