Description


Page : 682

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson
Purpose : Routine data collection
Date(s) : 001116 - 001117
File(s) : L11160 - L11171
Comments : Hase at startup
Logfile : l0011160.log

Setup:0


Page : 683
[Variables]
Dye Power=90mJ
Rayleigh Power=530mJ

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

Logsheet:0


Page : 684

Sondrestrom Lidar Operation Log


Log Sheet 1 of 2
Operators : E.Guðmundsson
Date(s) : 001116 - 001117
File(s) : L11160 - L11171
FilesTime [UT]CommentsCntSOpe
L1116020:59:25Start of experiment42290EG
L1116021:02:37Haze knockingthe counts down a bit34250EG
L1116022:06:13Very thick haze now, does not look good outside!2310EG
L1116023:02:26The wavemeter showed the wavelength was up ~1 or 2pm0EG
or to 589.160nm. Temperature in the laser room had risen
quite a bti (24.5C). Turned out that the outside window hatch
in the Harris room had closed due to the wind and
the temp in that room had reached 33deg C. Went outside
and opened the hatch and secured it in the open position.
temperature is now regulated and has reached a stable 22 deg C
I did not tune the laser but am waiting for it to stabilize
at the starting point of 589.159nm after fixing the hatch
problem.
L1116023:36:10Abosolutely no counts , incremented120EG
L1116123:37:07The clouds are killing the counts, can't continue like this!330EG
L1116123:58:13Looks like things are improving a bit14590EG
L1116123:59:56There is a tiny peek on the sodium at 105km15740EG
L1116100:31:32The wavemeter has not seetled at the starting wavelength of2180EG
589.159nm even though the temp has been stable for quite a
while. Tuned -1pm or down to 589.159nm
L1116101:43:14Signal again, inc67080EG
L1117003:15:01Skies have cleared up so I'm verifying that 589.159nm gives95070EG
the maximum sodium counts, incremented
L1117103:15:52Tuened to 589.158nm95840EG

Logsheet:1


Page : 685

Sondrestrom Lidar Operation Log


Log Sheet 2 of 2
Operators : E.Guðmundsson
Date(s) : 001117 - 001117
File(s) : L11171 - L11171
FilesTime [UT]CommentsCntSOpe
L1117103:17:50a slight increase in sodium counts after last tune. but nothing 95850EG
significant. Go figure!! I'm gettting haze in the beam now!!!
L1117103:21:30tuning back to 589.159nm67010EG
L1117103:28:18signal totally knocked down0EG
L1117103:33:43End of experiment1790EG