Description


Page : 1886

Sondrestrom Lidar Operation Log


Operator(s) : Christian Have Pedersen
Purpose : Daq. on 532nm and 607nm.
Date(s) : 071208 - 071209
File(s) :
Comments : Initially nice profiles on 532 and 607 channel, but after 3 hrs. it was not possible
to get any more good data.
The first hour of data should be usefull for evaluating chopper setting.
Logfile : L0712090.log

Setup:0


Page : 1887
[Variables]
Chopper delay=34
Rayleigh Power=500mJ

[0]
front end Iris=1.5mm
Rayleigh System=On
Rayleigh Field stop=0.5mm
Rayleigh path attenuation=0dB
Dye System=Off
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 : 1888

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : Christian Have Pedersen
Date(s) : 071208 - 071209
File(s) :
FilesTime [UT]CommentsCntSOpe
20071208_00020:03:08Start of experiment0
20071208_00020:08:10Conditions excellent. Pushed down chopper a little more0cp
for this experiemnt.621
20071208_00020:51:54Maybe a small problem on the Rayleigh channel. Small wave motion0cp
in profile.
Problem with ARCLITE app. will have to restart.
Again restarted app. , but now a different app.
20071208_00021:21:02Still working the noise on the rayleigh profile. I suspect that 0cp
the black cloth on the roof has gotten a little loose, so that
it blows into the field of view of the telescope.
20071208_00021:22:24Thin haze layer.4330cp
20071208_00021:59:05Outside it looks like perfekt conditions, but the counts and0cp
profile indicates a thick haze layer present.229
Will have to wait and see...
20071208_00022:47:10Still thick haze layer.0cp
20071208_00023:05:47Still haze2710cp
20071208_00023:30:393020cp
20071208_00023:47:31Stopping exp. for now. Conditions not good now. Maybe later0cp
the exp will be continued.106
20071208_00004:05:48Conditions are not good. It is not possible to acquire any more0cp
good data tonight.
20071208_00004:06:23End of experiment0cp