The Sun rose into clouds, came out again and then went away...

It was one of the best nights yet for DIAL measurements. Michael had very clear skies overhead and was able to measure from 10 PM until 6AM. He is looking forward to this trend continuing tonight.

We were a bit late heading up to the lab because Tom and Clive were trying to work with the red Brewer at the station. In the end, they brought it inside so that it could warm up and be ready for them to work with tonight.

There was thick cloud on the horizon and the skies were clear above. The Sun rose through the cloud and there were about 2 hours of reasonable FTS observations through thin cloud. Richard M. and Paul and Keeyoon alternated using the suntracker for DA8 and PARIS measurements. There was a break of 2 hours when the Sun disappeared into thicker cloud and then another hour of ok measurements. We could tell when the suntracker had lost the Sun because we could hear Keeyoon playing the song "Man of Constant Sorrows" (from the "O Brother Where Art Thou" soundtrack).

Tom, Jennifer and Clive monitored the Brewer, SPS and MAESTRO measurements throughout the day and continued working on the data processing. DOAS and SAOZ continued their observations from their domes. Annemarie worked on her data analysis.

Keith started cleaning up the storage room today and found much fodder for a good garage sale. Too bad the community here is so small!

Temperatures continue to be low. This morning it was -43 C at the station and -40 C at the lab. Because of this, Annemarie and I spent a lot of time scraping frost off the SAOZ dome window. We decided to see if we could manage the frost situation without using the heaters in the dome. At about 3 PM, Paul rigged up a tube to direct the warm air from the fan closer to the dome window. Just before we left, Annemarie and I checked on the frost levels. It was looking much better and Annemarie adjusted the location of the tube outlet so that it would not interfere with the SAOZ field of view.

There are a group of journalists coming up to Eureka (with Heather Mackey from MSC and Jim Drummond from UoT) to see what we are doing. They were supposed to arrive in last night but the weather was not good enough for the charter plane to leave Resolute Bay. We hope that they can get out tomorrow morning.

The daily ozonesonde was launched at 23:15 UTC with the synoptic radiosonde. The Totex balloon reached a height of 7.5 mbar and Clive and Jennifer tied with equidistant guesses of 7.0 and 8.0, respectively.

Best regards,
Kaley.