2018 CAP Congress / Congrès de l'ACP 2018

Session

M3-2 General Contributions I (DASP) l Contributions générales 1 (DPAE)

M3-2

11 Jun 2018, 16:15

Dalhousie University

Conveners

M3-2 General Contributions I (DASP) l Contributions générales 1 (DPAE)

• Jean-Pierre St-Maurice (University of Saskatchewan)

2079. Atmospheric Research in the High Arctic: The PEARL Experience (I)

James Drummond (Dalhousie University)

11/06/2018, 16:15

Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)

Invited Speaker / Conférencier(ère) invité(e)

It is well-known that the atmosphere in the polar regions of this planet is considerably different from the more temperate regions due to a variety of factors including the planetary rotation, the magnetic field and the fact that the extreme polar regions undergo an annual cycle of light and darkness which overwhelms the 24-hour cycle that characterises the lower latitudes.

For the last...

2035. Insight into Global Trends in Aerosol Composition over 2005–2015 Inferred from the OMI Ultraviolet Aerosol Index (G)*

Melanie Hammer (Dalhousie University)

11/06/2018, 16:45

Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Observations of aerosol scattering and absorption offer valuable information about aerosol composition. We apply a simulation of the Ultraviolet Aerosol Index (UVAI), a method of detecting aerosol absorption from satellite observations, to interpret UVAI values observed by the Ozone Monitoring Instrument (OMI) over 2005–2015 to understand global trends in aerosol composition. We conduct our...

2296. Influence of Thunderstorms on the Structure of the Ionosphere over North America

Prof. Omar Nava (Air Force Institute of Technology)

11/06/2018, 17:00

Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)

Oral (Non-Student) / Orale (non-étudiant(e))

Accurate characterization of the ionosphere in response to thunderstorms has important implications for the effective use of high frequency (HF) communications in civilian and military operations, to include emergency services, amateur radio, aviation, and over-the-horizon radar. This study investigates changes in the structure of the ionosphere due to strong convective activity and cloud...

2286. Coastal fog microphysics in Atlantic Canada (I)

Prof. Rachel Chang (Dalhousie University)

11/06/2018, 17:15

Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)

Invited Speaker / Conférencier(ère) invité(e)

Fog reduces visibility, causing delays in transportation by land, sea and air. It is also a safety hazard that results in accidents and sometimes even death. Like cloud droplets, fog droplets form on cloud condensation nuclei, existing aerosol particles in the atmosphere that have the ability to activate into droplets. As such, fog droplets provide a unique, in situ method of studying the...

1992. Coordinated space weather observations at the SANAE IV base in Antarctica

Dr Olakunle Ogunjobi (Centre for Space Research)

11/06/2018, 17:45

Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE)

Oral (Non-Student) / Orale (non-étudiant(e))

The proposed ionising influence of cosmic rays on atmospheric aerosols, clouds and atmospheric electrical properties has resulted in several attempts to obtain convincing correlations. Several theoretical studies on such possible indirect influence is still poorly understood while the observational evidence remains controversial and incomplete. This study examines the...