University of Toronto
CALASET-II: a Balloon Payload to Investigate  Atmospheric Gases Using Mid- and Near-Infrared Laser Spectroscopy — PI: Dr. Kaley  A. Walker. Reliable  measurements from space are critical for evaluating the atmospheric models used  to predict the changes occurring in Earth's climate. These models provide  crucial guidance for air quality forecasts, climate change predictions and  disaster response planning. The CALASET-II project aims to design, build and  test innovative instruments to measure concentrations of atmospheric trace  gases as function of height. These new instruments will allow identification  and quantification of specific gases, such as carbon dioxide, and help verify  measurements obtained from the satellites that observe Earth's atmosphere.