Description

Page : 598

Sondrestrom Lidar Operation Log

Operator(s) : A.Merkel, K.Richmond, E.Guðmundsson
Purpose : NLC detection and routine data taking
Date(s) : 000706 - 000709
File(s) : L7060 - L7091
Comments : The skies justcleared up. There may be some clouds coming into the signal.

A flash lamp was changed in the rayeigh YAG laser, energy may be a little low.
Sodium channel still is not operational.
Logfile : l0007060.log

Setup:0

Page : 599
[Variables]
Rayleigh Power=540 mJ

[0]
Iris=min_opening
Rayleigh System=On
Dye System=Off
Daystar=In
Polarizer=In
HalfWave Plates=In
Rayleigh Filter=2:532(.5nm)

Logsheet:0

Page : 600

Sondrestrom Lidar Operation Log

Log Sheet 1 of 2
Operators : A.Merkel, K.Richmond, E.Guðmundsson
Date(s) : 000706 - 000708
File(s) : L7060 - L7082

Files	Time [UT]	Comments	Cnt	S	Ope
L7060	22:19:09	Start of experiment	1413	0	AM
L7060	22:23:25	sza=74.3, background=136	1602	0	AM
L7070	01:30:21	incremented file	1996	0	AM
L7070	01:31:18	NLC forming at 85 km, weak	1983	0	AM
L7071	02:42:46	incremented file		0	KR
L7072	03:24:49	incremented again , ask Kristof why	1677	0	AM
L7072	03:28:40	there is one record missing at 03:24, obliterated by accidental		0	KR
		increment			KR
L7072	06:57:41	pretty uneventful night so far.	2144	0	AM
L7073	08:38:17	increment file	2141	0	AM
L7073	11:27:26	Rayleigh Convergence mirror adjusted	956	0	EG
L7073	11:49:15	Is it my imagination or is there something around 72km???	1905	0	EG
L7073	14:34:28	Was starting to loose counts, tried tweeking rayleigh converg.	1832	0	EG
L7073	18:32:48	Incremented	2190	0	EG
L7074	19:44:04	Some clouds have moved in	1489	0	EG
L7074	20:35:06	It is getting pretty cloudy	1032	0	AM
L7074	21:56:10	pausing data, too cloudy	881	0	AM
L7080	01:54:37	starting data taking, maybe short lived, incremented file	992	0	AM
L7080	04:28:26	paused system, too cloudy	30	0	AM
L7081	07:23:31	start data taking, still some clouds, incremented file	1257	0	AM
L7081	13:50:58	incremented filenumber	2201	0	EG
L7082	21:43:54	going to see if we are centered on the halfwave plates	1309	0	AM
		because of low countrate at this time of day
L7082	21:55:35	It looks like we are at the peak, need to look somewhere else	1358	0	AM

Logsheet:1

Page : 601

Sondrestrom Lidar Operation Log

Log Sheet 2 of 2
Operators : K.Richmond, E.Guðmundsson
Date(s) : 000708 - 000709
File(s) : L7082 - L7091

Files	Time [UT]	Comments	Cnt	S	Ope
L7082	22:05:39	Haze layer	1358	0	KR
L7082	00:34:31	It is getting pretty cloudy	446	0	AM
L7082	00:47:13	pausing system, too cloudy	606	0	AM
L7090	02:00:24	start data taking, few clouds, incremented file	1351	0	AM
L7090	10:01:27	Started converging using the conv. mirror micrometers	1550	0	EG
L7091	10:25:13	Ended converging periode, slight gain, incremented	1768	0	EG
L7091	12:41:46	There is a very week NLC detection only visible using 60min	2190	0	EG
		integration. Reyleigh equvivalent of 65 to 70km
L7091	13:51:26	Contrails in the beam path	1779	0	EG
L7091	16:56:54	Heavy Clouds	2025	0	EG
L7091	18:20:32	the clouds have been around for the pat 50min, closing down	2454	0	EG
L7091	18:22:07	End of experiment	2454	0	EG