Description


Page : 1702

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson
Purpose : Routine data collection. IS radar running
Date(s) : 051204 - 051204
File(s) : L20051204_000 - L20051204_002
Comments :
Logfile : l0512040.log

Setup:0


Page : 1703
[Variables]
Dye Power=47mJ
Rayleigh Power=510mJ

[0]
front end Iris=not_installed
Rayleigh System=On
Rayleigh Field stop=1.5mm
Rayleigh path attenuation=0dB
Dye System=On
Sodium Field stop=2.0mm
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 1704

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : E.Guðmundsson
Date(s) : 051204 - 051204
File(s) : L20051204_000 - L20051204_002
FilesTime [UT]CommentsCntSOpe
L20051204_00018:25:16Start of experiment6790EG
L20051204_00018:37:31Nice and clear skies, Dye needs changing.0EG
L20051204_00018:37:48tuning0EG
L20051204_00018:40:32Done tuning sodium to 589.158nm6040EG
L20051204_00018:42:17Interesting! The sodium densitiy has fallen. Looks like the0EG
reelignment of the wavemeter has shift the best reading.
Tuning back to establish the setting yeilding the highsest
sodium counts.
L20051204_00018:51:27NO change observed when tuning from 589.159nm to0EG
589.160nm. Looks like the optimum wavelengths as seen on
the wavemeter when sodium returns from lidar are the highest
is at 159.159nm. This is a wavelength reading shift of 1pm603
L20051204_00018:53:34Note on PC crashes. Found a runaway process on PC belonging0EG
the the norton realtime scan engine. ARCLITE starved of
CPU cycles. Removed the offending application and installed
a more recent version of the program. Looks ok now.
L20051204_00019:51:56Sodium HG adjusted. Warmup time not sufficient hence5570EG
HG drift during the first hour. Tweeked HG back to max energy
L20051204_00122:10:38Converged Sodiumn0EG
L20051204_00122:34:14Sodium HG tweeked to max6380EG
L20051204_00122:36:53Restarted Data collection software, Raleyigh frozen6380EG
looks like I still have a problem with the service threads!
L20051204_00223:17:34counts7380EG
L20051204_00223:19:19End of experiment7300EG