2016 CAP Congress / Congrès de l'ACP 2016

Session

M3-7 Atmospheric and Space Physics I (DASP) / Physique atmosphérique et de l'espace I (DPAE)

M3-7

13 Jun 2016, 15:45

University of Ottawa

Conveners

M3-7 Atmospheric and Space Physics I (DASP) / Physique atmosphérique et de l'espace I (DPAE)

• Shaun Lovejoy (McGill University)

1456. The Earth's Hum Comes from the Sun

Dr Frank Vernon (Scripps Institute of Oceanography, UCSD, La Jolla, California)

13/06/2016, 15:45

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

Invited Speaker / Conférencier invité

It was established over a decade ago that the normal modes of the Earth are continuously excited at times without large earthquakes, but the sources of the ‘seismic hum’ have remained unresolved. In addition to the normal modes of the Earth, we show spectral lines in seismic data with frequencies which correspond closely to normal modes of the Sun. Moreover, the widths of the low-frequency...

1438. Advancing Methane Mitigation by Understanding the Physics and Chemical Kinetics of Ultra-lean Combustion Dynamics

Dr Daniel Cluff (University of Exeter)

13/06/2016, 16:15

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

Oral (Non-Student) / orale (non-étudiant)

The recent climate change discussions between Canada and the United States of America and other international agreements target methane a potent GHG. The U.S. Environmental Protection Agency will begin developing regulations for methane emissions from existing oil and gas sources while Environment and Climate Change Canada will publish proposed initial phase regulations by early 2017. Although...

1396. The Influence of Turbulence on the Transport of Energetic Particles

Mr Martin Heusen (University of Manitoba)

13/06/2016, 16:30

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

Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)

We explore the influence of magnetic turbulence on the transport of energetic particles, mainly cosmic rays, by using test-particle simulations. We compute parallel and perpendicular diffusion coefficients for two-component turbulence, isotropic turbulence, a model based on Goldreich-Sridhar scaling, noisy reduced magneto-hydrodynamic turbulence, and a noisy slab model. We have shown that for...

1395. SIMULATIONS OF ENERGETIC PARTICLES INTERACTING WITH DYNAMICAL MAGNETIC TURBULENCE

Mr Martin Heusen (University of Manitoba)

13/06/2016, 16:45

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

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

We explore the transport of energetic particles in interplanetary space by using test-particle simulations. In previous work such simulations have been performed by using either magneto-static turbulence or undamped propagating plasma waves. In the current work we simulate for the first time particle transport in dynamical turbulence. To do so we employ three models, namely the damping model...

1436. A Prototypical Substorm with Conjugate Ground and Space Data

Martin Connors (Athabasca University)

13/06/2016, 17:00

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

Oral (Non-Student) / orale (non-étudiant)

The substorm at about 5 UT on February 26, 2008 (Angelopoulos et al., Science, 2008) has been taken as prototypical of reconnection in the Near-Earth Neutral Line model. Further examination by Pu et al. (JGR, 2010) showed that the event was preceded an hour earlier by one with very similar signatures. Traditional use of AE-related indices suggests that the first event was smaller in terms of...