Friday, September 15, 2017

Wispy Clouds on Mars!


Normally I use this space to make some "witty" comments to ease you, our readers, into each article. But today I'm going to get out of the way because I just can't say it better than seasoned MSc student Charissa Campbell and her animations: "Here are the beautiful movies taken on sol 1758. On the left is the SHM which shows the Martian landscape with the wispy clouds above. The right is the ZM that is taken directly above the rover but still shows the similar wispy features as the SHM. They are both taken around 7:00 am."

 by Charissa Campbell

One of my roles on the Curiosity Science Team is to process the atmospheric movies taken by the rover. They consist of 8 sequential images of the sky above the rover. There are two kinds: Zenith Movie (ZM) and Supra-Horizon Movie (SHM). The only difference between these two observations is the angle of the camera with respect to the rover. The SHM is taken at an angle of 38.5° elevation, which is right above the crater rim, while the ZM is taken directly above the rover at an angle of 85°. 

Most of these movies are taken either in the early morning or afternoon as studies show that these two periods during the sol are when clouds most likely appear. In fact, there even is a season on Mars that exhibits more clouds than other times of the year. This is known as the Aphelion Cloud Belt (ACB) and starts in the late fall in the southern hemisphere, where Gale Crater is located. It is given this name because it peaks around the Aphelion of Mars; the furthest point that Mars will be in its orbit around the Sun. Clouds can be seen at other times of the Martian year. However, the ACB is a season that distinctively shows clouds. We even use this recurring season to plan atmospheric movies for Curiosity so that we can analyze these clouds in greater detail.

Sunday, September 3, 2017

So you think you can research, Vol. 2

This week Alex Séguin, one of our undergraduate research assistants, recounts his experiences at the Lassonde Undergraduate Research Fair. This year we had two entrants - Alex in the poster competition and Brittney Cooper (who wrote last year's post on this event) in the oral competition where she took first prize. I'm already looking forward to next year's Vol. 3.

by Alex Séguin

On Tuesday, August 15th, the Lassonde School of Engineering hosted the 2017 Summer Research Conference. Affectionately named "So You Think You Can Research?”, the event offered undergraduate students working in Lassonde a chance to present the work they have done over the last four months. Naturally, the vast majority of participants were Lassonde students but some were studying mathematics, biology, psychology, or even came from other universities! As for myself, I presented a poster of my work with PVL titled Towards an Airborne Methane-Measuring Sensor for Titan Exploration.

The day started off with complementary coffee and a welcome address from Dr. Pagiatakis (Associate Dean, Research and Graduate Studies), Dr. Philipps (Interim Vice President Academic and Provost), and Dr. Sinclair (NSERC Ontario Regional Office’s Manager). They emphasized the importance of our first research contributions, saying they are valued and recognized. After this, a newly appointed Assistant Professor named Dr. Boakye-Yiadom talked about his current research, some of the things he had learned along the way, and how they applied to us. In fact, most of what he said applies in any research context!