Spectroscopic and microscopic study of heterogeneous atmospheric chemistry phenomena on ice surfaces

Ice surface chemistry plays a major role in determining the chemical composition over snow in the polar boundary layer, as well as in the presence of ice aerosols under tropospheric/stratospheric conditions. This project aims at elucidating heterogeneous atmospheric chemistry phenomena on ice surfaces using advanced microscopy and spectroscopy. The molecular adsorption at ice surfaces under near equilibrium condition with water vapour is studied by microscopy in a unique sample cell designed in Prof. Gen Sazaki laboratory. Therefore, a new sample cell design was discussed and preliminary technical drawings were produced by undergraduate student Josée Maurais in Ayotte’s laboratory at UdeS (Summer of 2017) in order to adapt the sample cell for spectroscopic measures. A visit to Hokkaido University by Maurais in the Summer of 2018 is thus timely as she will then have built the sample cell, and begun preliminary spectroscopic characterization of ice films. TO BE CONT’D

Faculty Supervisor:

Patrick Ayotte

Student:

Partner:

Hokkaido University

Discipline:

Physics

Sector:

Agriculture; Education

University:

Université de Sherbrooke

Program: