Description


Page : 1024

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson
Purpose : Routine data collection. NLC run
Date(s) : 020731 - 020801
File(s) : L20020731_001 - L20020801_002
Comments :
Logfile : L0207310.log

Setup:0


Page : 1025
[Variables]
Dye Power=90mJ
Rayleigh Power=510mJ

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

Logsheet:0


Page : 1026

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : E.Guðmundsson
Date(s) : 020731 - 020801
File(s) : L20020731_001 - L20020801_002
FilesTime [UT]CommentsCntSOpe
L20020731_00122:16:03Start of experiment20070EG
22:23:44Some scattered clouds arround but mostly clear.19660EG
L20020801_00002:22:52Tuning sodium from 589.160 to 589.158nm18880EG
02:24:31done tuning0EG
02:24:43Converging the Rayleigh and sodium0EG
02:30:56Done0EG
02:34:07changing to setup 1, removing daystar from the path0EG
02:35:57done1EG
02:41:19Pushed chopper up by 30us (delay from 3471us to 3441us)1EG
02:41:53or 4.5km1EG
02:54:58Observing a kink in the raw Rayleigh profile at 75km. Slope to88001EG
zero counts larger after 75km
03:03:26Going to try the plate flipping for a few minutes. incremented86001EG
03:06:14counts in extinguished mode 510 , 8600 in normal mode1EG
Attenuation factor of ~ 16, consistant with the last time
this was tried.
03:10:33changing tx offset from 56 to 56.5 result counts 5551EG
03:13:04from56.5 to 571EG
03:23:23No significant changes in the counts when fine tweeking1EG
the minimun TX by changing TX offset sligthly in
both direction.
03:27:10changing back to normal data aq mode. incremnted1EG
L20020801_00203:58:40End of experiment1EG