Description


Page : 575

Sondrestrom Lidar Operation Log


Operator(s) : A.Merkel
Purpose : NLC detection and routine data taking
Date(s) : 000618 - 000619
File(s) : L6180 - L6180
Comments : The skies are very clear. It looks like when we start up this early the count rate is
lower. For example yesterday the countrate was lower in the evening than
through
the night and into the morning. But the background is consistent with solar
scattering angle. Will have to watch and see if this occurs all the time. Only
comparing it for these two days because there are no clouds.

The sodium channel still looks weak. Not much of a sodium layer.

A storm moved in really fast. Got about four hours of data
Logfile : l0006180.log

Setup:0


Page : 576
[Variables]
Dye Power=105 mJ
Rayleigh Power=515 mJ

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

Logsheet:0


Page : 577

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : A.Merkel
Date(s) : 000618 - 000619
File(s) : L6180 - L6180
FilesTime [UT]CommentsCntSOpe
L618020:59:31Start of experiment17320AM
L618021:00:33skies very clear17320AM
L618021:07:37Rayleigh Convergence mirror adjusted17440AM
L618021:11:44sza=67.116040AM
L618021:18:29Rayleigh Convergence mirror adjusted15550AM
L618021:26:16Sodium Convergence mirror adjusted16290AM
L618021:34:12background=186, sza=69.25, same background asthis morning17680AM
at this sza but the count rate is lower.
L618023:00:28system paused due to lost of cumulus clouds moving in5700AM
L618023:49:06started again, see if we can get some data before it clouds up22960AM
L618023:51:36sza=81.122960AM
L618023:55:36changed sodium channel from 589.162 to 589.15822370AM
L618000:03:27storm just moved in. 21850AM
L618000:04:14End of experiment4960AM