Description


Page : 749

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson
Purpose : Routine data collection
Date(s) : 010204 - 010205
File(s) : L102040 - L102051
Comments : Dye laser HWP in maximum Rayleigh attenuation position (150deg) during the
entire run.
Logfile : l0102040.log

Setup:0


Page : 750
[Variables]
Dye Power=95mJ
Rayleigh Power=490mJ

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

Logsheet:0


Page : 751

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : E.Guðmundsson
Date(s) : 010204 - 010205
File(s) : L102040 - L102051
FilesTime [UT]CommentsCntSOpe
L10204023:35:11Start of experiment84120EG
Clear skies
L10204023:36:58Tuning for mximum sodium97580EG
L10204023:48:55Maximum sodium return reached at 589.158nm to 589.159nm90890EG
as indicated by the wavemeter.
L10204002:12:29Slight haze in the beam. Incremented.0EG
L10205004:20:28A bit more haze now but counts are still good.59980EG
L10205004:28:13Wavemeter readout has drifted up to 589.162nm. Increment0EG
and doing a maximum sodium seek to see if its the laser or
the wavmeter that hs drifted
L10205004:29:27Tuning for maximum sodium0EG
L10205104:36:28It is clear that its the dye laser that has drifted. The maximum59640EG
sodim return is at 589.158nm to 589.159nm as was at startup
L10205104:38:24An observation- The high cirrus clouds/haze are causing 0EG
signal induced noise on the sodium channel. The rayleigh
signal has to attenuated further if we are to detect clouds
downto 15km in altitude!!
L10205104:50:14End of experiment62650EG