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In the real-time archive, the DSMs at the main tower ceased reporting on Sep 27 21:03:05 UTC (15:03:05 MDT).
Station 12 also quit reporting at that time. A TRH and barometer at C20 and a TRH at Ah6 also quit at that time.
Kurt restored power mid-morning Sept 28 and we assessed damage to the main tower. Our best guess is that the lightning struck near the base trailer and a current surge flowed down the power cable to DSM M21, trashing the charge controller, the PC104 stack, and the power interface panel. Many of the sensors associated with M21 were found inoperative, but M21 appears to have acted as an expensive 'fuse', limiting damage to M22 and its associated sensors. Gordon wrote:
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"All sensors except for one at the C site are reporting. Sodars are OK, I hear. The Piccarro Picarro was not connected to AC. It apparently suffered damage via the serial cable from the main tower DSM. So the damage was on the systems connected to the AC circuit to the main and OSU tower. I think Tom and Kurt agree that it seems the lightning didn't strike either tower but the surge came in from the AC circuit.
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Two sensors at C also ceased data_stats isfs_20120927_200000.dat.bz2 indicates that sensors at other sites quit reporting at 21:03:05 UTC, including two sensors at C: the 1.5m TRH and the barometer. The TRH resumed reporting , all on its own I believe, on Sep 28 04:29 UTC.
Station 12 quit reporting at 21:03:05, but is now working after replacing the charging controller. However data from the TRHs at 12 via the bluetooth mote is not coming in. Site C20
0.5m TRH at Ah6 also stopped.
Site | Serial Port | Sensor | Status |
|---|---|---|---|
C20 | 7 s7 | 1.5m TRH | quit, but resumed on Sep 28 04:29 UTC |
C20 | 10 s10 | Vais PTB | NG no data |
Coincidentally the following sensors at other sites also stopped reporting right at that time, as seen with
data_stats isfs_20120927_200000.dat.bz2
Ah6 | 1 | 0.5m TRH | NG, not reporting |
Ap12 | btmote12 | ||
site | sensors | status | |
|---|---|---|---|
6 | port 1 | 0.5 m TRH, still not reporting | |
12 | all | stn up after change of charge controller. Bluetooth mote not reporting | C | 1.5m TRH, PTB | 1.5m auto-resurrected
2m TRH | unknown status, no data from Bluetooth mote |
Other Damaged Equipment
- WIFI antenna (EantA) on main tower. Unknown status, probably dead.
- WIFI antenna (EantD) on OSU tower. Unknown status.
- USB disk drive (pocketec) on M21 DSM is not recognized by host systems. This contained 21 hours of data for Sep 27, but we have the same data that was received in real-time over the network.
- 5-port network switch in M21 is toast
Pocketec USB disk drive in Mu22, upper DSM on NCAR tower, is OK.
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