Description


Page : 581

Sondrestrom Lidar Operation Log


Operator(s) : A.Merkel, E.Guðmundsson
Purpose : NLC detection and routine data taking
Date(s) : 000623 - 000624
File(s) : L6230 - L6231
Comments : The skies are very clear. The skies were pretty clear the whole night

The Sodium laser has low energy, the dye needs to be changed.

The sodium layer was sporadic at the same time that the ISR detected sporadic E
layer.

NLC DETECTION!
Logfile : l0006230.log

Setup:0


Page : 582
[Variables]
Dye Power=85 mJ
Rayleigh Power=520 mJ

[0]
Iris=min_opening
Rayleigh System=On
Dye System=On
Daystar=In
Polarizer=In
HalfWave Plates=In
Rayleigh Filter=2:532(.5nm)

Logsheet:0


Page : 583

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : A.Merkel, E.Guðmundsson
Date(s) : 000623 - 000624
File(s) : L6230 - L6231
FilesTime [UT]CommentsCntSOpe
L623021:14:36Start of experiment17660AM
L623021:17:08sza=67.55 background=20716530AM
L623021:33:14sopadic sodium layer15690AM
L623021:33:38the ISR is detecting a sporadic E layer also16580AM
L623022:18:47Rayleigh Convergence mirror adjusted13770AM
L623022:30:34for some reason, the rayleigh signal keeps droping10850AM
L623022:37:17Rayleigh HG adjusted9450EG
L623023:40:48Cirrus creaping in!0EG
L623000:13:47!! NLC detection at ~85km, R eq.~65km19810EG
L623001:16:39Dense cirrus has been and still is attenuating the signal a lot5030EG
L623002:04:17another NLC detection at ~85 Km,it is weak right now16420AM
L623002:08:29getting stronger ,sza=88.4 background=2119440AM
L623002:21:06Sodium tuned from 589.154nm to 589.158nm0EG
L623002:28:46NLC has rayleigh equivalent of 60 km16570AM
L623002:56:34Sodium Convergence mirror adjusted16740EG
L623003:19:27sporadic sodium layer, NLC still strong17410AM
L623005:05:12Rayleigh HG adjusted16520EG
L623005:21:24it looks like the NLC is going away17000AM
L623005:58:19the NLC is still there just very weak17230AM
L623006:46:10The NLC is gone19530AM
L623106:47:04incremented file20330AM
L623109:18:37End of experiment19310AM