Maybe we should all switch to moon measurements...

It turns out that not all nights are great for the DIAL. Michael went up to the lab at 10 PM to bring dinner to Keeyoon and Richard M. He started up the laser but was never able to get it aligned because there was too much snow and ice. He returned to the station at 2 AM and spent the rest of the night on data analysis.

When we had gotten to the lab this morning, the wind had picked up. It was not so pleasant to be up on the roof to check the DOAS and SAOZ dome windows. This got worse when Annemarie and I found that 50% of the SAOZ window was covered in frost. We got the window lifted up and cleaned it off. By 2 PM, the frost layer had come back. Annemarie turned on the heat in the dome and we let it warm up. The frost was not too bad when we left at the end of the day but we will have to reevaulate tomorrow.

Jennifer fine tuned the SPS and MAESTRO macros and continued working on the SPS data analysis. Tom worked on the MAESTRO analysis code. After dinner, Clive and Tom continued work on the Brewer at the station.

We attempted to make FTS measurements through the middle of the day but there was too much haze and blowing snow. The tracker was able to track but one person had to spend all of their time adjusting the tracker during the scan. The measurements were not very good because the haze was making the signal vary quite significantly. We will hope for better weather tomorrow.

There was some excitement at the weather station when a polar bear came around at about 11 AM. The staff followed it for a few hours with the track truck and lured it away from the station. Needless to say, we are taking appropriate precautions and minimizing the time we spend outside.

The daily ozonesonde was launched with the synoptic radiosonde. The Raven balloon reached a more typical height of 6.2 mbar. Annemarie came closest with a guess of 2 times pi mbar.

Best regards,
Kaley.