Description


Page : 1180

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson
Purpose : Routine data collection in conjunction with the IS Radar
Date(s) : 030226 - 030227
File(s) : L20030226_000 - L20030227_001
Comments :
Logfile : l0302260.log

Setup:0


Page : 1181
[Variables]
Dye Power=120mJ
Rayleigh Power=450mJ

[0]
Iris=min_opening
Rayleigh System=On
Rayleigh path attenuation=0dB
Dye System=On
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 1182

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : E.Guðmundsson
Date(s) : 030226 - 030227
File(s) : L20030226_000 - L20030227_001
FilesTime [UT]CommentsCntSOpe
L20030226_00023:42:35Start of experiment0EG
L20030226_00023:44:48Taking chopper data0EG
L20030226_00023:52:45Stopped taking chopper data, going into normal data taking0EG
L20030226_00023:55:43started normal data taking0EG
L20030226_00000:01:13Converged the Rayleigh system6000EG
L20030226_00000:05:53Counts10620EG
L20030226_00000:24:20Measured the dye laser energy and adjusted HG for max10580EG
L20030226_00000:49:23Signal attenuated a bt due to a thin cirrus cloud in the beam9780EG
L20030226_00001:14:37Cirrus cloud no longer in the beam path.10020EG
L20030227_00002:43:43Bad trigger on sodium10300EG
L20030227_00002:44:21System note. Have been monitoring chopper performance0EG
looking for loss of phase lock. The infinite persistance
does not show any loss of phase lock. This indicates
that the chopper is not the cause of the false triggers. Will
be monitoring the output of the chopper delay unit to see
if that is causing spurious triggers (for the rest of the run)
L20030227_00002:48:52Tuned the dye laser.10250EG
L20030227_00003:03:03Thin cirrus interfering again7050EG
L20030227_00003:21:25Clouds getting worse4710EG
L20030227_00004:19:13Tuned sodium system8410EG
L20030227_00004:34:47Cloud thickness increasing, will probably not continue with 2230EG
a TIMED/SABER radar run as inteded,
L20030227_00105:09:38heavy cloud cover, shutting down00EG
L20030227_00105:10:00End of experiment00EG