Field Notes
<--2010-02-10 10:00:00 | 2010-02-25 09:00:00-->Other sites visited today: Tonzi | Vaira
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Tonzi: 2010-02-10 11:00:00 (DOY 41)
Author: Joe Verfaillie
Others: Siyan, Dennis
Summary: Installed Tram with 24VDC chargin station, left CO2 profile off, brought in old sap flow equipment.
| Tonzi
2/10/2010 Arrived about 11am with Siyan and Dennis. Partly sunny, stronger breeze than at Vaira, still cool. Ground is very wet, saturated in many areas. I reinstalled the tram. The left south wheel was loose. I reset the set screw and covered both wheel hubs and axels with silicon. I setup two solar panels (20W and 40W) to charge two car batteries in series to send 24 volts to the Campbell charger. Seemed like it was working when we left about 2:30. About 10 minute transit one way. All solar was running. Tower had not lost data since Jan 28th. I checked the water in a couple of the tower batteries. Water levels did not look bad but the plates seemed to be coated in white mold (sulfate crystals?). Some additives and pulsing current/voltage techniques advertise to reduce sulfate formation, but no good science to support ads. Proper charging and maintenance should be enough. Next time need to do a good job of cleaning up battery terminals and watering. Replaced cards in z-cams. All seemed in good working condition. Started to reconnect co2 profile system. The pump seemed to die. There was a spare in the box, but had the wrong connectors. Also discovered that even without the pump, the co2 profile system nearly doubled the load on the tower from 2.5 amps to 4.5 amps (plus another 1.3 amps for the pump). Both pumps returned to the lab for checkup. Dennis brought in a data logger and AM416 that was unused in the field. |
Field Data
No tank data
Well Depth
| Date | Location | Depth (feet) |
|---|---|---|
| 2010-02-10 | TZ_floor | 28.85 |
| 2010-02-10 | TZ_road | 35.48 |
| 2010-02-10 | TZ_tower | 32.85 |
No TZ Moisture Point data found
No VR Moisture Point data found
No TZ grass heigth found
No VR grass heigth found
No TZ Tree DBH found
No water potential data found
No TZ Grass Biomass data found
No TZ OakLeaves Biomass data found
No TZ PineNeedles Biomass data found
11 photos found
TZ_100_4985.JPG ( 2010-02-10 02:37:32 ) Full size: 1496x1122
Floor eddy tower and Joe working on the tram
TZ_100_4986.JPG ( 2010-02-10 02:37:42 ) Full size: 1496x1122
Green grass and old stump
TZ_100_4987.JPG ( 2010-02-10 02:37:52 ) Full size: 1496x1122
Leafless oaks and new grass
TZ_100_4988.JPG ( 2010-02-10 02:38:14 ) Full size: 1496x1122
Tonzi tower against cloudy skies
TZ_100_4989.JPG ( 2010-02-10 02:38:32 ) Full size: 1496x1122
Oak twigs against cloudy sky
TZ_100_4990.JPG ( 2010-02-10 02:38:50 ) Full size: 1496x1122
Oak twig against cloudy sky
TZ_100_4991.JPG ( 2010-02-10 02:39:04 ) Full size: 1496x1122
Close up of new grass sprouts
TZ_100_4992.JPG ( 2010-02-10 02:39:16 ) Full size: 1496x1122
Close up of new grass sprouts
TZ_100_4993.JPG ( 2010-02-10 03:17:26 ) Full size: 1496x1122
Close up of new grass sprouts
TZ_100_4994.JPG ( 2010-02-10 03:17:42 ) Full size: 1496x1122
Standing water in puddles in the grass
TZ_100_4995.JPG ( 2010-02-10 03:21:42 ) Full size: 1496x1122
Leafless oaks and cloudy skies
16 sets found
No data found for TZ_Fenergy.
11 TZ_tmet graphs found
11 TZ_soilco2 graphs found
Can't check TZ_mixed
3 TZ_mixed graphs found
No data found for TZ_fflux.
8 TZ_fmet graphs found
1 TZ_tram graphs found
3 TZ_co2prof graphs found
No data found for TZ_irt.
No data found for TZ_windprof.
No data found for TZ_tflux.
2 TZ_sm graphs found
Can't check TZ_met
1 TZ_met graphs found
Can't check TZVR_mixed
No data found for TZ_osu.
No data found for TZ_fd.
Tonzi Z-cam data