Description


Page : 549

Sondrestrom Lidar Operation Log


Operator(s) : A.Merkel
Purpose : Looking for NLC and could be routine data collection if the clouds cooperate
Date(s) : 000604 - 000604
File(s) : L6040 - L6040
Comments : The sky is clear with few clouds. We installed the new bending mirror. It looks
like the count rate is better now for the Rayleigh signal. We are getting around
10.000 counts with the new mirror aligned. This is the count rare with no clouds.

This run is going pretty well We have had some clouds but the overall it is a good
data set. No NLCs so far.

This data run was pretty good. I think there is almost 4 hours of good data. The
clouds got to dense in the end.
Logfile : l0006030.log

Setup:0


Page : 550
[Variables]
Dye Power=95mJ
Rayleigh Power=540 mJ

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

Logsheet:0


Page : 551

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : A.Merkel
Date(s) : 000604 - 000604
File(s) : L6040 - L6040
FilesTime [UT]CommentsCntSOpe
L604000:53:06Start of experiment9290
L604000:55:40Clouds at the start35800
L604000:01:23The Rayleigh channel looks better for counts with new mirror70030
L604001:05:14Delayed chopper timing for Sodium channel67820
L604001:14:26Sodium Convergence mirror adjusted71590
L604001:16:58sza=87.571070
L604001:19:04Tuned sodium channel to 589.15777540
L604001:41:05Rayleigh channel counts look really good103980
L604001:42:01sza= 88.6, no clouds right now103980
L604003:02:01The rayleigh signal looks good but its has a high background89260
L604003:02:14sza=90.5, no clouds89260
L604004:34:50There have been some clouds in the laset hour and half73690
L604004:35:11The solar senith angle is getting close to 8873690
L604005:09:17sza=88.453250
L604005:09:50The last half hour has been cloud covered53700
L604005:14:49End of experiment48900