Activities per year
Activities
- 36 results
Search results
-
Building ionospheric models to support high latitude radio propagation applications
David Themens (Invited speaker)
10 Apr 2023Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Large-scale plasma structures and scintillation in the high-latitude ionosphere
Sophie Maguire (Speaker), Alan Wood (Advisor) & David Themens (Advisor)
Apr 2023Activity: Academic and Industrial events › Conference, workshop or symposium
-
Approximating solar activity; implications for ionospheric modelling
Elizabeth Donegan-Lawley (Speaker), Sean Elvidge (Advisor), Alan Wood (Advisor), David Themens (Advisor) & Luke Nugent (Advisor)
Apr 2023Activity: Academic and Industrial events › Conference, workshop or symposium
-
RADICALS for HF Operational Modelling
David Themens (Invited speaker)
22 Feb 2023Activity: Academic and Industrial events › Guest lecture or Invited talk
-
The Empirical Canadian High Arctic Ionospheric Model (E-CHAIM)
David Themens (Invited speaker)
21 Feb 2023Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Canadian Space Agency Solar-Terrestrial Science Advisory Committee (External organisation)
David Themens (Member)
1 Feb 2023 → 1 Feb 2026Activity: Membership › Membership of board
-
Canadian empirical ionospheric model capacity: An overview of the Empirical and Assimilation Canadian High Arctic Ionospheric Model (E-/A-CHAIM)
David Themens (Invited speaker)
23 Nov 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
GNSS & PNT Risks
Sean Elvidge (Advisor) & David Themens (Advisor)
9 Sept 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Challenging the differences between hundcast, nowcast, and forecast validation
David Themens (Invited speaker)
Sept 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Assessing the performance of a near-real-time operational data assimilation system: Assimilation Canadian High Arctic Ionospheric Model (A-CHAIM)
David Themens (Invited speaker), Benjamin Reid (Contributor) & Sean Elvidge (Contributor)
Jul 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Validating the Assimilation Canadian High Arctic Ionospheric Model (A-CHAIM)
David Themens (Invited speaker), Benjamin Reid (Contributor) & Sean Elvidge (Contributor)
Jun 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
High latitude empirical and assimilation modeling with E-/A-CHAIM
David Themens (Invited speaker), Benjamin Reid (Contributor) & Sean Elvidge (Contributor)
Jun 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Global propagation of traveling ionospheric disturbances associated with the 2022 Tonga volcanic eruption
David Themens (Invited speaker), Benjamin Reid (Contributor), Sean Elvidge (Contributor) & Alan Wood (Contributor)
Jun 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Advanced Ionospheric Data Assimilation (AIDA): A global particle filter model for the ESA SWE Portal
David Themens (Invited speaker), Benjamin Reid (Contributor), Sean Elvidge (Invited speaker), M.A. Ahmed (Contributor), Matthew Angling (Contributor), Francois-Xavier Bocquet (Contributor) & Sanita Vetra-Carvalho (Contributor)
10 May 2022 → 12 May 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Global propagation of traveling ionospheric disturbances associated with the 2022 Tonga volcanic eruption
David Themens (Invited speaker), Benjamin Reid (Contributor), Sean Elvidge (Contributor) & Alan Wood (Contributor)
May 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Radio Propagation and Ionospheric Modelling at High Latitudes: Raytracing through Chaos
David Themens (Invited speaker)
21 Apr 2022Activity: Academic and Industrial events › Guest lecture or Invited talk
-
Canadian Association of Physicists - Division of Atmospheric and Space Physics (External organisation)
David Themens (Chair)
1 Mar 2022 → 1 Mar 2025Activity: Membership › Membership of board
-
3D Ionospheric Modelling Workshop
Sean Elvidge (Chair) & David Themens (Organiser)
29 Nov 2021Activity: Engagement and Public events › Engagement event
-
Performance assessment of a near-real-time operational data assimilation system: Assimilation Canadian High Arctic Ionospheric Model (A-CHAIM)
David Themens (Contributor), Benjamin Reid (Contributor), Sean Elvidge (Contributor), Anthony M. McCaffrey (Contributor) & P. Thayyil Jayachandran (Contributor)
26 Oct 2021Activity: Academic and Industrial events › Conference, workshop or symposium
-
A precipitation module for the Empirical Canadian High Arctic Ionospheric Model (E-CHAIM)
David Themens (Speaker), Chris J. Watson (Contributor), P. Thayyil Jayachandran (Contributor), Anthony M. McCaffrey (Contributor) & Benjamin Reid (Contributor)
1 Sept 2021Activity: Academic and Industrial events › Conference, workshop or symposium
-
International Union of Radio Science (External organisation)
David Themens (Chair)
1 Sept 2021 → 1 Sept 2028Activity: Membership › Membership of working group or committee
-
To what extent can E-CHAIM be used as a model of total electron content?
David Themens (Speaker), P. Thayyil Jayachandran (Contributor), Benjamin Reid (Contributor) & Anthony M. McCaffrey (Contributor)
29 Aug 2021Activity: Academic and Industrial events › Conference, workshop or symposium
-
A decade with the Canadian High Artic Ionospheric Network (CHAIN) ionosondes
David Themens (Invited speaker), P. Thayyil Jayachandran (Contributor), Todd Kelly (Contributor), R. Chadwick (Contributor), Chris J. Watson (Contributor), Anthony M. McCaffrey (Contributor), Anton Kashcheyev (Contributor), Joey Bernard (Contributor), K. Meziane (Contributor), S. Patra (Contributor), J. Langille (Contributor) & Benjamin Reid (Contributor)
29 Aug 2021Activity: Academic and Industrial events › Guest lecture or Invited talk
-
2021 URSI General Assembly and Scientific Symposium
David Themens (Chair)
27 Aug 2021 → 4 Sept 2021Activity: Academic and Industrial events › Conference, workshop or symposium
-
Empirical ionospheric modeling: Current status, limitations, and the future
David Themens (Invited speaker)
Jun 2021Activity: Academic and Industrial events › Guest lecture or Invited talk
-
International Union of Radio Science (External organisation)
David Themens (Member)
9 Mar 2021Activity: Membership › Member of an organisation
-
Near-Real-Time Regional Ionospheric Data Assimilation: the Assimilation Canadian High Artic Ionospheric Model (A-CHAIM)
David Themens (Invited speaker)
Jan 2021Activity: Academic and Industrial events › Guest lecture or Invited talk
-
A precipitation parameterization for the Empirical Canadian High Arctic Ionospheric Model (E-CHAIM) and other empirical models
David Themens (Invited speaker)
Jan 2021Activity: Academic and Industrial events › Guest lecture or Invited talk
-
A decade of ionosonde observations from the Canadian High Arctic Ionospheric Network (CHAIN)
David Themens (Invited speaker)
Dec 2020Activity: Academic and Industrial events › Conference, workshop or symposium
-
Institute of Physics (External organisation)
David Themens (Member)
20 Oct 2020Activity: Membership › Member of an organisation
-
EISCAT runs to Support Ionospheric Model Validation in the Topside (EISCAT-SIMVaT)
David Themens (Chair) & Sean Elvidge (Advisor)
24 Sept 2020 → 31 Dec 2021Activity: Other
-
URSI Canadian National Committee (External organisation)
David Themens (Chair)
1 Jan 2020 → 31 Dec 2023Activity: Membership › Membership of working group or committee
-
Canadian Association of Physicists - Division of Atmospheric and Space Physics (External organisation)
David Themens (Chair)
20 Feb 2019 → 20 Feb 2022Activity: Membership › Membership of working group or committee
-
International Association of Geomagnetism and Aeronomy (External organisation)
David Themens (Advisor)
1 Sept 2018 → 1 Sept 2023Activity: Membership › Membership of working group or committee
-
International Reference ionosphere Working Group (External organisation)
David Themens (Advisor)
22 Jul 2018Activity: Membership › Membership of working group or committee
-
URSI Ionosonde Network Advisory Group (INAG) (External organisation)
David Themens (Member)
1 Aug 2010 → 1 Jan 2030Activity: Membership › Membership of working group or committee