Field Notes
<--2005-10-28 00:00:00 | 2005-11-05 13:02:00-->Vaira: 2005-11-02 11:30:00 (DOY 306)
Author: Ted Hehn
Others:
| When: Wed-Thur, 2-3Nov05 JD 306-307
Where: Vaira Ranch Who: Ted Hehn Weather Overcast & cool Trip Purpose Install NDVI_2 Wed 11:30 arrive all appears well. Repair leveling mount on diffuse radiation sensor and level the device. Connect 2 aux solar panels to regulator and tighten all terminal screws. Unable to communicate with CR23x3 to upload program and data before NDVI and new program installation (program to collect NDVI data and initiate webcam power for 5 minutes at beginning of hour from 10:00 – 14:00) Remove SC532 interface and both MD9s and install rs232 cable. PC – logger communication is established. Program upload successful, data upload fails to retrieve all data from memory Install aux PC and attempt data retrieval from cr23x3 – failure Reinstall PC and reattempt data retrieval – failure. Note that when the power return lead for the PC was removed the PC remained powered up. This indicates a ground loop. Disconnect webcam relay control signal return lead from ground terminal on cr23x3 and the PC shuts off. This is causing the ground loop. Reconnect the control signal return and remove power return lead for PC to break ground loop. The current for the PC flows through the PC power buss, through the PC RS232 port ground serial lead (pin 5) through the cr23x3, through the webcam relay and power return lead to the system batteries This situation will have to be monitored to see if any drastic changes are evident in the data. CR23x3 *B values: 1.) 27643 Prog sig 2.) 43177 sig 3.) 1664 Kbyte mem 4.) 0 watchdog error 5.) 99 table overruns 6.) 1.0 OS ver 7.) 0010 OS Rev 8.) 2.6564 Lithium batt volt 9.) 99 low volt counter 10.) 9 flash error 11.) 21.6 flash erase 12.) 0 low 5 volt counter 13.) 3158 program time 14.) 19.9 Panel Temp 15.) 02 Coprocesser rev 16.) 00 rev 17.) CPLD rev Data upload attempts from CR23x3 using the “Collect All” button fails but does collect a portion of the memory. Different areas of memory are uploaded each time and I was finally able to “piece together” all the data from day 301 – 306. Uninstall PC208W software and delete all remaining PC208W folders and files and reinstall PC208 and set all parameters – failure still unable to upload all data from memory. However, ½ hour data are being retrieved every 30 min. Replace desiccant in K&Z pyranometer. Organize signal & power leads to CR23X3 and wire tie together. Test webcam and it is operational. Install NDVI_2 on boom arm and new program in CR23x3. Edit cr23x3 program to allow webcam to be powered up/down by setting flag 5 hi/lo respectively. Place fire extinguisher under boom arm and use to focus webcam. Set Windows task manager to initiate Webcam batch file at the beginning of each hour from 10:00 – 15:00 hrs 18:00 Leave site all instruments operational. |
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
Tree DBH
| Date | Tag# | 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
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.