A post-doctoral position is available at York University (in Toronto) in the Centre for Research in Earth and Space Science (CRESS) under the supervision of Professor James Whiteway. The project involves advancement of laser remote sensing for investigation of the exchange of water between the atmosphere and surface of Mars. The project follows from the LIDAR instrument that was operated on the Phoenix Mars mission. Scientific investigations will be carried out in the laboratory using a chamber that will provide environmental conditions equivalent to the surface of Mars. The successful candidate will have a Ph.D. degree in Planetary Science, Atmospheric Science, Physics, or Engineering. The skills required or developed for the project concern laser optics, Raman spectroscopy, light detection, data acquisition, atmospheric thermodynamics, soil science, and data analysis. The duration of the position is one year. Interested candidates should contact Professor James Whiteway (firstname.lastname@example.org) and provide a CV, a sample of written work, and contact information for three references. Applications will be assessed until the position is filled.