Description


Page : 876

Sondrestrom Lidar Operation Log


Operator(s) : J.Jørgensen, E.Guðmundsson
Purpose : Routine data collection-NLC hunt
Date(s) : 010801 - 010803
File(s) : L108010 - L108031
Comments : NLC detected
Logfile : l0108010.log

Setup:0


Page : 877
[Variables]
Dye Power=82mJ
Rayleigh Power=500mJ

[0]
Iris=0.6mm
Rayleigh System=On
Dye System=Off
Etalon=Out
Daystar=In
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

[1]
Iris=0.6mm
Rayleigh System=On
Dye System=On
Etalon=Out
Daystar=In
Polarizer=Out
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

[2]
Iris=0.6mm
Rayleigh System=On
Dye System=On
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking

Setup:1


Page : 878

[3]
Iris=0.6mm
Rayleigh System=On
Dye System=Off
Etalon=Out
Daystar=In
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 879

Sondrestrom Lidar Operation Log


Log Sheet 1 of 3
Operators : J.Jørgensen, E.Guðmundsson
Date(s) : 010801 - 010802
File(s) : L108010 - L108020
FilesTime [UT]CommentsCntSOpe
L10801010:58:38Start of experiment0JJ
L10801011:05:41Not perfectly clear out there...22330JJ
L10801011:27:54HG adj.25730JJ
L10801011:33:10Conv. mirror adj.0JJ
L10801015:44:54Filenumber Incremented27100EG
L10801116:48:05Running with sodium system now (setup 1) incremented25320EG
L10801216:48:30Counts25320EG
L10801221:04:42counts27661EG
L10801222:07:04counts27471EG
L10801223:20:03Sodium Convergence mirror adjusted30981EG
L10801200:44:24Nice and clear31831EG
L10801201:49:28Nice and clear29891EG
L10801202:14:00Strange noise in rayleigh signal producing 5-6 counts every few km29701EG
L10801202:45:53anomolous noise in signasl of last record as I swapped input cable to sr43028391EG
L10801203:00:11Noise seems to have gone away after changing PMT cable28751EG
L10801203:00:57Noise never affected sodium channel only Rayleigh28751EG
L10801203:49:34counts28461EG
L10801204:19:39weak NLC detected at 85 km equiv Ray = 75 km28161EG
L10801204:48:16NLC weak and intermittent in one minute profiles27631EG
L10801205:49:11NLC gone very weak throughout28691EG
L10801206:53:56counts31421EG
L10801208:28:18counts28851EG
L10801212:26:27Filenumber Incremented30341EG
L10802012:27:13counts30871EG

Logsheet:1


Page : 880

Sondrestrom Lidar Operation Log


Log Sheet 2 of 3
Operators : E.Guðmundsson
Date(s) : 010802 - 010803
File(s) : L108020 - L108022
FilesTime [UT]CommentsCntSOpe
L10802018:25:08looks like we is a bad connector on the rayleigh channel24711EG
L10802018:25:38Filenumber Incremented24711EG
L10802118:26:23Filenumber Incrementedcounts23861EG
L10802118:26:59fixed the coneector problem.25071EG
L10802122:20:10Messing arround27071EG
L10802222:29:22Reset halfwave plates and set transmitter 45 degrees off24951EG
L10802222:30:0524841EG
L10802222:31:353001EG
L10802222:32:493211EG
L10802222:36:12Peaked Tx halfwave for best rejection - polarization ext = 102661EG
L10802222:39:38Rest Tx halfwave reset by adding 45 degrees to offset23651EG
L10802223:51:57counts25071EG
L10802200:36:07counts22881EG
L10802200:41:24Rayleigh Convergence mirror adjusted, bkgrnd = 626761EG
L10802200:55:26sza=90.6 removed Daystar44792EG
L10802200:56:02backgrnd = 288118702EG
L10802201:22:54counts, backgrnd = 100, sza=92.3115242EG
L10802201:55:53counts, backgrnd = 32, sza=93.7114432EG
L10802202:17:39counts, backgrnd = 18, sza=94.4112282EG
L10802202:41:14counts backgrnd=12, sza=95.0109961EG
L10802203:23:44counts, backgrnd = 9, sza=95.5104781EG
L10802204:26:06counts, backgrnd = 14, sza=94.9102111EG
L10802204:51:44counts,backgrnd=23,sza=94.2109481EG
L10802205:21:30counts, backgrnd=60, sza=93.0112111EG

Logsheet:2


Page : 881

Sondrestrom Lidar Operation Log


Log Sheet 3 of 3
Operators : E.Guðmundsson
Date(s) : 010803 - 010803
File(s) : L108022 - L108031
FilesTime [UT]CommentsCntSOpe
L10802205:52:42counts, backgrnd=196 sza=91.5115702EG
L10802206:07:23counts backgrnd=331, sza=90.7118882EG
L10802206:10:57Daystar back in path, sza=90.616981EG
L10802206:13:58counts21071EG
L10802206:17:23Rayleigh Convergence mirror adjusted, bckgrnd=1026191EG
L10802206:48:08NLC detection25491EG
L10802207:27:59Filenumber Incremented27021EG
L10803007:28:32counts25661EG
L10803009:03:09Rayleigh Convergence mirror adjusted24131EG
L10803013:28:21Shutting down sodium channel28331EG
L10803013:31:02Running with setup 3 Rayleigh only28063EG
L10803116:01:02End of experiment25893EG