Description


Page : 329

Sondrestrom Lidar Operation Log


Operator(s) : E.Gudmundsson
Purpose : Routine data collection
Date(s) : 990815 - 990815
File(s) : L9908121 - L9908154
Comments :
Logfile : L9908150.log

Setup:0


Page : 330
[Variables]
Dye Power=95mJ
Rayleigh Power=570mJ

[0]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=On
Daystar=In
Polerizer=In
HalfWave Plates=Tracking
Filter Wheel=2:532(.5nm)

[1]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=On
Daystar=Out
Polerizer=In
HalfWave Plates=Tracking
Filter Wheel=2:532(.5nm)

Logsheet:0


Page : 331

Sondrestrom Lidar Operation Log


Log Sheet 1 of 2
Operators : E.Gudmundsson
Date(s) : 990815 - 990815
File(s) : L9908121 - L9908154
FilesTime [UT]CommentsCntSOpe
L990812103:39:37Start of experiment1481EG
L990812103:39:44The clouds are clearing up so I'm taking data01EG
L990815003:41:31UPS! forgot to change trigger source and rec/scan on sodium8061EG
L990815003:42:19incremented8061EG
L990815103:46:29Counts11691EG
L990815103:55:18Rayleigh HG adjusted23631EG
L990815103:56:20Note. The iris has been fully open from start22771EG
L990815103:56:45The Rayleigh counts are rather low now now??? 1EG
L990815104:15:58Rayleigh Convergence mirror adjusted25741EG
L990815105:30:06Clsing the iris to minimum opening27771EG
L990815105:32:09Reconverged Rayleigh23711EG
L990815206:38:11Rayleigh Convergence mirror adjusted24721EG
L990815206:45:37There are some thin clouds overhead22071EG
L990815207:34:48Changed setup SZA 87.420701EG
L990815207:35:20incremented20460EG
L990815307:44:25The clouds are screwing things up. stopping experiment3270EG
L990815307:57:16Changing to full open iris to see how counts behave2780EG
L990815309:01:04Been messing with the system , Rayleigh data after this0EG
Should be valid, incrementing
L990815409:58:34Turning down the Rayleigh energy to see if this is causing 0EG
the sloping background
L990815410:07:28Its not the large return signal that is causing this0EG
L990815410:08:00turning off PMT gating on Rayleigh channel (always on)0EG
L990815410:18:07turning of HWP controller0EG

Logsheet:1


Page : 332

Sondrestrom Lidar Operation Log


Log Sheet 2 of 2
Operators : E.Gudmundsson
Date(s) : 990815 - 990815
File(s) : L9908154 - L9908154
FilesTime [UT]CommentsCntSOpe
L990815410:29:07I don't see the slope now!!0EG
L990815410:29:22Turning the Rayl. laser on again2200EG
L990815410:35:202010EG
L990815410:43:57There is a clear effect, as the Rayleigh energy is set up0EG
The more severe the sloping noise is.144
L990815410:45:10Closing the lid on the Rayleigh power supply1440EG
L990815410:48:52No improvement1900EG
L990815411:13:23Turning off laser again, just to make sure 2810EG
L990815411:35:47The laser is on again3990EG
L990815412:23:05Ending test10EG