Field Notes

<--2012-04-24 09:30:00 | 2012-05-07 09:30:00-->
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Sherman Island: 2012-05-02 09:00:00 (DOY 123)
Author: Joe Verfaillie
Others: Dennis, Sara, Jaclyn

Summary: Removed LI-7700, installed LGR, soil cores for diffusion, tried CO2 probe relay again.

Sherman
2012-05-02

I arrived about 900PDT with Dennis, Sara, and Jaclyn. It was cool and sunny with high thin clouds and a gusty breeze from the west. Walt was just letting in a truck with a supplement liquid for the cows. The field is relatively dry. The pepper weed is thick and mid-thigh tall. Inside the cow fence it is waist high.

We removed the LI7700 (sn TG1-0223) and wash box from the tower.

We added an LGR (sn 08-0114) and the diaphragm pump (sn 03387648). We left the scroll pump in the back of the box. I ran the diaphragm pump to blow out the lines for a while. I took the T-junction out where the external 2um filter goes and just connected directly to the filter. I put the KVM back in line and everything seemed to work all right. I cleaned the 40um filter and used a clean 2um external filter. When we left the LGR read:
10:56PDT, 21.85C, 142.38Torr, 15.2usec, 10Hz, 1.896ppm

I swapped the CR1000 card and then changed the program back to a previous version supporting the LGR. I modified the previous program to omit the LGR time from the fast table.

We tried the relay for the Vaisala CO2 probes again. Still having problems with the CR10X restarting upon relay activation. We swapped the CR10X (sn 20140 removed) but still had the problem. It might be a ground problem and we will try replacing the 24V to 12V converter next time.

Sara and Dennis pulled soil cores for diffusivity tests in the lab.

4 photos found

Bird on diffuse PAR shadow band
SI_autocam_20120501_1015.jpg ( 2012-05-01 10:15:03 ) Full size: 1920x1440
Bird on diffuse PAR shadow band

Nice sunset
SI_autocam_20120502_1915.jpg ( 2012-05-02 19:15:02 ) Full size: 1920x1440
Nice sunset

Bird on diffuse PAR shadow band
SI_webcam_20121221015.jpg ( 2012-05-01 10:15:04 ) Full size: 640x480
Bird on diffuse PAR shadow band

Bird on diffuse PAR shadow band
SI_webcam_20121240545.jpg ( 2012-05-03 05:45:04 ) Full size: 640x480
Bird on diffuse PAR shadow band

Graphs display:
7 sets found

No data found for SI_mp.
11 SI_met graphs found

Explore the graph:Solar Radiation in a new window

Explore the graph:Energy 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 Temperatures Set 3 in a new window

Explore the graph:Soil Temperature at -16cm in a new window

Explore the graph:LED NDVI Sensor Output in a new window

Explore the graph:Solar Radiation from CNR1 in a new window

Explore the graph:Sherman Island Rain in a new window

Explore the graph:Sherman Well Level in a new window

Explore the graph:Box Temperatures in a new window

Can't check SI_mixed
2 SI_mixed graphs found

Explore the graph:Theta Probes in a new window

Explore the graph:Sherman Island Air Temperatures in a new window

5 SI_flx graphs found

Explore the graph:Sonic Wind in a new window

Explore the graph:CH4 Concentrations in a new window

Explore the graph:LI7700 Channels in a new window

Explore the graph:Sample Counts in a new window

Explore the graph:LI7500 CO2 and H2O in a new window

3 SI_soilco2 graphs found

Explore the graph:Sherman Island Vaisala Soil CO2 in a new window

Explore the graph:Soil CO2 Temperatures in a new window

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

Can't check TWSI_mixed
Can't check SIMBTWEE_met