Description


Page : 642

Sondrestrom Lidar Operation Log


Operator(s) : J.Jørgensen, E.Guðmundsson, K.Richmond
Purpose : routine data collection- NLC hunt in conjunction with ISR - C. Heinselman run.
Date(s) : 000822 - 000825
File(s) : L8220 - L8250
Comments : Chopper cut-off altitudes adjusted in communication with Jeff.
Very cloudy at end of run.
Logfile : l0008220.log

Setup:0


Page : 643
[Variables]
Dye Power=35mJ
Rayleigh Power=530

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

[1]
Iris=min_opening
Rayleigh System=On
Dye System=On
Daystar=In
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)

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

[3]
Iris=min_opening
Rayleigh System=Off

Setup:1


Page : 644
Dye System=On
Daystar=In
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)

Logsheet:0


Page : 645

Sondrestrom Lidar Operation Log


Log Sheet 1 of 4
Operators : J.Jørgensen, E.Guðmundsson
Date(s) : 000822 - 000823
File(s) : L8220 - L8230
FilesTime [UT]CommentsCntSOpe
L822013:22:44Start of experiment25140JJ
L822014:56:03HG adj.19880JJ
L822020:58:20sodium channel on line incremented17300JJ
L822120:59:34Counts, there is haze up there16761EG
L822121:11:34Sodium Convergence mirror adjusted16571EG
L822121:54:53Incremented14751EG
L822221:54:57Moving sodium chopper altitude down to 10km (nose of 1EG
the frofile)
L822222:07:55Sodium Convergence mirror adjusted13931EG
L822222:12:30Blocking the outgoing sodium beam for a fwe minutes14081EG
L822222:19:05Opened the iris to fully open13861EG
L822222:23:34Sodium beam in the air again (removed block)23161EG
L822222:27:02Lowered the chopper altitude on the sodium22431EG
L822222:30:09Closing iris(to minimum) and reconveging sodium.1EG
L822222:32:09done22611EG
L822222:39:43Opened iris (full open)1EG
L822222:46:34Iris sat at minimum opening22851EG
L822222:56:30Chopper altitude raised1EG
L822223:33:32incremented21351EG
L822323:33:42Conts21351EG
L822323:40:16pushed the sodiumchopper alt up by 1.5km22231EG
L822323:50:49tweeking raleigh chopper alt1EG
L822300:04:14Done tweeking, incrmented17551EG
L823000:04:29counts17551EG

Logsheet:1


Page : 646

Sondrestrom Lidar Operation Log


Log Sheet 2 of 4
Operators : E.Guðmundsson, K.Richmond, J.Jørgensen
Date(s) : 000823 - 000823
File(s) : L8230 - L8236
FilesTime [UT]CommentsCntSOpe
L823001:10:06Paused to change setup, incremented19901EG
L823101:10:17Running without the daystar18722EG
L823101:18:20Sodium tuned from 589.161 to 589.15758512EG
L823101:23:53Sodium Convergence mirror adjusted62402EG
L823104:01:49Rayleigh Convergence mirror adjusted51202EG
L823105:35:48Dye system tuned to 589.158 nm51342KR
L823207:46:37Incremented filenumber55392KR
L823207:59:52Pausing to insert daystar, shut down dye system. Incremented.58172KR
L823308:04:56Running again.5160KR
L823308:13:12Paused to fiddle a bit with daystar alignment, counts were real9980KR
low. Loosened nut.
L823310:34:28Thought loss of counts was due to halfwave plate polarization6120KR
interaction, will try convergence
L823310:38:16Rayleigh Convergence mirror adjusted10980KR
L823410:39:34Incremented filenumber10470KR
L823415:27:47Rayleigh Hg adj.9530JJ
L823515:28:36Incremented filenumber9670JJ
L823519:09:27Preparing to run sodium SZA=6712230JJ
L823520:15:20Incremented, have been running with the sodium for an hour9941EG
L823620:31:40Sodium Convergence mirror adjusted9381EG
L823620:32:15Rayleigh Convergence mirror adjusted9931EG
L823620:42:52Sodium Convergence mirror adjusted11291EG
L823622:08:01Contrail in beams1EG
L823623:53:07incremented7471EG

Logsheet:2


Page : 647

Sondrestrom Lidar Operation Log


Log Sheet 3 of 4
Operators : E.Guðmundsson, K.Richmond, J.Jørgensen
Date(s) : 000823 - 000824
File(s) : L8236 - L8244
FilesTime [UT]CommentsCntSOpe
L823623:53:23Clouds in and out of the beam7471EG
L823700:10:44Sodium Convergence mirror adjusted6291EG
L823700:37:37Lots of clouds now, looks like ther is a small peek on the1EG
sodium layer
L823701:36:31Paused to change setup1EG
L824001:39:49Done, Daystar out of the path3772EG
L824001:47:17incremented2EG
L824001:47:23trying to get cloud data for alt comparison2EG
L824102:03:21incremented done with cloud data collection4092EG
L824204:35:37Some fairly heavy cloud cover moving in, but there are holes2362KR
L824206:14:29Heavy clouds moving in. Looks like we're going to have to 32KR
pause for a few hours.
L824206:16:23Pausing data collection02KR
L824310:12:37Resumed data collection, filenumber incremented, daystar in30KR
L824310:14:55Counts15840KR
L824310:22:19Just learned that we should be running Na too. It's got to 15240KR
warm up again.
L824311:10:20Haze layer13820KR
L824311:34:33Starting up Na system17050KR
L824411:36:30Na system on, filenumber incremented11021KR
L824411:43:51Sodium Convergence mirror adjusted18951JJ
L824412:40:31Still seeing sodium24321JJ
L824412:42:09Tweeked the sodium HG got it to 47 mJ1JJ
L824413:25:08Clouds moving through26241JJ

Logsheet:3


Page : 648

Sondrestrom Lidar Operation Log


Log Sheet 4 of 4
Operators : J.Jørgensen, E.Guðmundsson
Date(s) : 000824 - 000825
File(s) : L8244 - L8250
FilesTime [UT]CommentsCntSOpe
L824413:46:30Heavy clouds coming down from the north19081JJ
L824415:14:52Still cloudy leaving lidars running hoping to catch a hole or1JJ
two
L824416:17:06Still looking bad out there. Going to pause and wait for 1JJ
better skies
L824416:18:26System paused1JJ
L824518:31:32Running again. Still cloudy but more holes now23111JJ
Filenumber incremented
L824518:35:08Sodium system tuned to 589.1581JJ
L824518:53:19Rayleigh HG adj.18171JJ
L824519:53:29The sky is fully overcast1EG
L824519:55:09Shutting down the Rayleigh lidar, will continue with the sodium1EG
just in case
L824519:55:39incremented3EG
L824602:08:38Still overcast, incremted3EG
L825003:44:19Shutting down, this is hopeless03EG
L825003:44:42End of experiment03EG