Description


Page : 1027

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson
Purpose : Routine data collection
Date(s) : 020801 - 020802
File(s) : L20020801_000 - L20020802_002
Comments : Spordaic sodium detected
NLC detected
Logfile : L0208010.log

Setup:0


Page : 1028
[Variables]
Dye Power=95mJ
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 : 1029

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : E.Guðmundsson
Date(s) : 020801 - 020802
File(s) : L20020801_000 - L20020802_002
FilesTime [UT]CommentsCntSOpe
L20020801_00020:43:56Start of experiment11450EG
21:07:59tweeked the location of the daystar as counts were low0EG
21:08:20counts at 30km19900EG
21:09:26Sodium layer showing a double peek0EG
21:42:09looks like there is a faint layer on the sodium , just arround0EG
110km
L20020801_00322:20:39!!! Some sporadic sodium at 115km, decended after a few18890EG
minutes to 110km and is fading now.
L20020802_00002:54:29Althought the sporadic layer at 110km has faded there is0EG
still a broad second sodium hump ranging from 105km to 115km
lingering. The sodium densities at the normal altitudes is
greatly enhanched.
02:59:37Removing daystar filter, changing to setup 10EG
03:01:47Done. Runniging with setup 10EG
03:17:44There is a small peek at 85km on the Rayleigh channel1EG
must be a week NLC .
04:48:01Observing a nice NLC now Ryleigh aqu. aprox. 75km90041EG
04:52:20Sodium layer falling back to normal. There seems to be1EG
some slight layer centered arround 117km.
05:43:42NLC no longer visible1EG
L20020802_00106:03:18installing daystar1EG
06:06:44Done installing daystar, running with setup 0.incremented20591EG
L20020802_00206:07:33counts at 30km20941EG
L20020802_00206:09:30End of experiment21031EG