Field Notes
<--2001-07-23 08:30:00 | 2001-07-31 15:23:00-->Tonzi: 2001-07-26 09:30:00 (DOY 207)
Author: Dennis Baldocchi
Others: Liu Kang, Peter Levy
Summary: Both flux systems hung up; soil was dry and hard could only take gravimetric soil samples to 10cm.
| When: D207, July 26, 2001 Where: Tonzi ranch Who: ddb, lk and Peter Levy Mild and clear morning. Arrived around 0930 pst. LK was making A-Par measurements and trying to assess the Kok effect, the fraction of dark respiration decrease in light. Both flux systems had hung up again. I found that the set up on the Press Enter login was different than that of the administrator. Our experience was to turn off all power saving options. This has worked at the Vaira ranch all year. The administrator option was set this way. The each other login had different settings. I changed both logins so power savings is off. I also changed the window on the gill sonic pif to maximize window. 1030 checking data loggers. Lost communication to com4. Opened Nancy’s box to check the status of the data logger. All was ok. Later found that the damn mouse moved one of the settings on pc 208 on com 4 and I had to reset the com switch. 1100 saw a few spikes on the tower flux system. Trying to see if the licor is seeing the sun. Did see a systematic 1 hz noise on the tower system. Sigma q was small, 0.02 v due to dry conditions, so noise was evident. Took gravimetric soil samples under tree and in open. Took bulk sample at 4 locations. Soil dry and HARD. Could only sample down about 10 cm C6 is under the tree. C4 is in the open. Use these data to set soil sensors to a reference. 1300 Took dendrometer readings. 1330-1400 at vaira. Swapped Irgas. Installed #35. LK downloaded data. Took soil samples (T1) Tsoil surface 50 C, Tair 33, rh 20%. All was working. 1400 set power settings on Vaira press enter login too. |
Field Data
No tank data
No TZ 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
| Date | Tag# | Reading (mm) |
|---|
No water potential data found
No TZ Grass Biomass data found
No TZ OakLeaves Biomass data found
No TZ PineNeedles Biomass data found
0 photos found
16 sets found
No data found for TZ_Fenergy.
11 TZ_tmet graphs found
No data found for TZ_soilco2.
Can't check TZ_mixed
3 TZ_mixed graphs found
No data found for TZ_fflux.
8 TZ_fmet graphs found
No data found for TZ_tram.
No data found for TZ_co2prof.
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