Description

Page : 1574

Sondrestrom Lidar Operation Log

Operator(s) : E.Guðmundsson
Purpose : Routine data collection
Date(s) : 050201 - 050201
File(s) : L20050201_000 - L20050201_001
Comments : Godd night for observations.

A shorlived sporadic event at 85 km was detected on the sodium and perhaps to
on
the Rayleigh.
Logfile : l0502010.log

Setup:0

Page : 1575
[Variables]
Dye Power=
Rayleigh Power=

[0]
front end Iris=not_installed
Rayleigh System=On
Rayleigh Field stop=0.5mm
Rayleigh path attenuation=0dB
Dye System=On
Sodium Field stop=0.5mm
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0

Page : 1576

Sondrestrom Lidar Operation Log

Log Sheet 1 of 1
Operators : E.Guðmundsson
Date(s) : 050201 - 050201
File(s) : L20050201_000 - L20050201_001

Files	Time [UT]	Comments	Cnt	S	Ope
L20050201_000	02:25:45	Start of experiment	431	0	EG
L20050201_000	03:01:12	A spike in the sodium, meteor detection! at 85km	355	0	EG
		Very thin at first, I think I see this to in the Rayleigh
		at the same altitude!
L20050201_000	03:06:05	From the history on the sodium it looks like as if there	349	0	EG
		was some abrupt change in the density profile after
		the lidar detected the spike inthe layer.
L20050201_000	03:52:34	Lowered chopper on sodium, converged Rayleigh	385	0	EG
L20050201_000	04:26:20	Checking and adjusting sodium HG and energy		0	EG
L20050201_000	04:28:06	energy fallen to 70mJ adjusted back to 105mJ	378	0	EG
L20050201_001	05:41:37	Starting to see a thin haze layer at 8km	465	0	EG
L20050201_001	06:10:23	increased cloud cover thickness from 8-10km, counts down	309	0	EG
L20050201_001	07:06:20	End of experiment	287	0	EG