Field Notes
<--2002-12-23 12:15:00 | 2003-01-08 00:00:00-->Other sites visited today: Tonzi
Vaira: 2003-01-07 14:00:00 (DOY 7)
Author: Ted Hehn
Others:
Summary: Battery box destroyed, replaced keyboard on laptop, Found wiring problem in solar panels - half no connected, Add diffuse and 4-way radiometer?
| When: Tue-Wed., 7-8 Jan03, JD-7-8 Where: Tonzi/Vaira Ranches Who: Ted Hehn Weather Trip Purpose: Install Diffuse & 4 way net radiometers Vaira Ranch: 7Jan03 14:00 arrive -Battery box for flux system was destroyed, spread all around site – clean up pieces and remove -cr10x reflective insulation was missing and needs to be replaced -laptop key board not functioning – about 20 keys don’t work reinstall operating system – no help remove key board and reinstall – more keys working but not all remove key board and replace with board from other laptop – ok all working now -drive ground rods under PVM modules and install guy cables to hold PVM modules down during high winds -8Jan03 -Stop at True value in Jackson and order electric fencer and insulated handles for Jianwu’s site Vaira- Foggy and overcast 8PVM Regulator voltage 11.6 Array current 2.2 Load current 3.3 -check wiring on PVM array: 1PVM=> 11.6, 0.5, 3.3 2PVM=> 11.5, 1.0, 3.3 3PVM=> 11.6, 1.8, 3.3 4PVM=> 11.7, 2.3, 3.3 Here is the problem: 4PVMs generate as much current as 8. Check wiring: connection on 5th PVM not correct – connected to wrong terminal. Correct and now getting 7.5 amp under cloudy conditions. This situation (running on 4 modules) has existed from the time the system was installed and we can now expect a major positive shift in site power/run time/data capture. CR10x- open channels: DE 4, 5, 6 MUX- channel 14H1 is stripped and unusable Open channels 14 H2, L2; 15 H1 L1, H2 L2; 16 H1 L1, H2 L2 Cr23x- open channels: DE 9,10, 11 |
Field Data
No tank data
No VR 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
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
9 sets found
16 VR_met graphs found
No data found for VR_flux.
No data found for VR_soilco2.
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.