Description


Page : 277

Sondrestrom Lidar Operation Log


Operator(s) : E.Gudmundsson
Purpose : Brent Watkins run coordinated with radar
Date(s) : 990521 - 990521
File(s) : L9905210 - L9905212
Comments : Dye laser energy has fallen from 115mJ to 95mJ since the repair, did not have
time to change dye before running.

!!! Sporadic sodium detected at the same time the radar detected sporadic E.!!!!
Logfile : L9905210.log

Setup:0


Page : 278
[Variables]
Dye Power=95mJ
Rayleigh Power=570mJ

[0]
90% PMT Iris=not_installed
Rayleigh System=Off
Dye System=On
Daystar=In
Polerizer=In
HalfWave Plates=Tracking
Filter Wheel=2:532(.5nm)

[1]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=On
Daystar=Out
Polerizer=In
HalfWave Plates=Tracking
Filter Wheel=2:532(.5nm)

Logsheet:0


Page : 279

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : E.Gudmundsson
Date(s) : 990521 - 990521
File(s) : L9905210 - L9905212
FilesTime [UT]CommentsCntSOpe
L990521000:50:17Start of experiment0EG
L990521001:09:32Sodium Convergence mirror adjusted0EG
L990521001:14:15SZA=89.76 and sodium profile comming trough usign 100EG
integrated profiles
L990521001:25:39Rayleigh system on. not quite there yet 0EG
L990521101:29:39Incremented Running with rayleigh system setup 11EG
L990521101:48:02Rayleigh Convergence mirror adjusted1EG
L990521102:01:18Rayleigh Convergence mirror adjusted12671EG
L990521102:06:36May be a sporadic layer at ca 97km15371EG
Radar observin sporadic E
L990521102:12:39Defenetely sporadic sodium around 97km14781EG
L990521102:34:17Looks like the layer is faiding 14421EG
L990521103:09:52Double layer now , second layer apeard around 100km 14571EG
L990521103:20:41Rayleigh Convergence mirror adjusted14311EG
L990521103:23:04Sodium Convergence mirror adjusted13721EG
L990521103:27:43large peek now at the lower (97km) layer13931EG
L990521103:34:02The peek appeared at ~94km not 97km14281EG
L990521103:34:34Much stronger than before14281EG
L990521204:55:00Tuned dye from 589.160 to 589.157nm. The laser had drifted14421EG
L990521205:13:20Energy from the laser has fallen from 95mJ to 75mJ during 1EG
the run. Measured without pausing the program. The record
during the measurement is slightly longer than 60sec
L990521205:15:19Getting difficult to see the sodium 14531EG
L990521205:55:43End of experiment15501EG