Related projects

Projects associated to DynaMIT

EZIE
EZIE | Electrojet Zeeman Imaging Explorer

EZIE (Electrojet Zeeman Imaging Explorer) is a NASA satellite mission to study the auroral electrojets. EZIE is led by Sam Yee at Johns Hopkins University Applied Physics Laboratory. EZIE webpage.

Selected publications:

  • Madelaire, M., Laundal, K., Gjerloev, J., Hatch, S., Reistad, J., Vanhamäki, H., et al. (2023). Spatial resolution in inverse problems: The EZIE satellite mission. Journal of Geophysical Research: Space Physics, 128, e2023JA031394.
  • Laundal, K. M., Yee, J. H., Merkin, V. G., Gjerloev, J. W., Vanhamäki, H., Reistad, J. P., et al. (2021). Electrojet estimates from mesospheric magnetic field measurements. Journal of Geophysical Research: Space Physics, 126, e2020JA028644.
Trond Mohn Foundation
Trond Mohn Foundation | Starting Grant - What Shapes Space?

Awarded to Karl Laundal in 2019. The project is about understanding the large-scale shape of geospace by investigating ionospheric observations, and develop new tools to do so. The project will end in 2025.

Selected publications:

  • Gasparini, S., Hatch, S. M., Reistad, J. P., Ohma, A., Laundal, K. M., Walker, S. J., & Madelaire, M. (2024). A quantitative analysis of the uncertainties on reconnection electric field estimates using ionospheric measurements. Journal of Geophysical Research: Space Physics, 129, e2024JA032599.
  • Walker, S. J., Laundal, K. M., Reistad, J. P., Ohma, A., Hatch, S. M., Chisham, G., & Decotte, M. (2024). A comparison of auroral oval proxies with the boundaries of the auroral electrojets. Space Weather, 22, e2023SW003689.
  • Decotte, M., Laundal, K. M., Hatch, S. M., & Reistad, J. P. (2024). Occurrence probability of magnetic field disturbances measured with Swarm: Mapping the dynamic magnetosphere-ionosphere coupling. Journal of Geophysical Research: Space Physics, 129, e2023JA032191.
  • Ohma, A., Laundal, K. M., Madelaire, M., Hatch, S. M., Gasparini, S., Reistad, J. P., et al. (2024). Robust estimates of spatiotemporal variations in the auroral boundaries derived from global UV imaging. Journal of Geophysical Research: Space Physics, 129, e2023JA032021.
  • Decotte, M., Laundal, K. M., Hatch, S. M., & Reistad, J. P. (2023). Auroral oval morphology: Dawn-dusk asymmetry partially induced by Earth’s rotation. Journal of Geophysical Research: Space Physics, 128, e2023JA031345.
  • Ohma, A., Madelaire, M., Laundal, K. M., Reistad, J. P., Hatch, S. M., Gasparini, S., & Walker, S. J. (2023). Background removal from global auroral images: Data driven dayglow modelling. Earth Planet. Phys., 8(1), 1–11, epp2023051.
  • Laundal, K. M., Madelaire, M., Ohma, A., Reistad, J., & Hatch, S. (2022a). The relationship between interhemispheric asymmetries in polar ionospheric convection and the magnetic field line footpoint displacement field. Front. Astron. Space Sci., 9:957223.
  • Elhawary, R., Laundal, K. M., Reistad, J. P., Madelaire, M., & Ohma, A. (2023). Substorm impact on dayside ionospheric currents. Geophysical Research Letters, 50, e2023GL104800.
  • Walker, S., Laundal, K., Reistad, J., Ohma, A., & Hatch, S. (2023). Statistical temporal variations in the auroral electrojet estimated with ground magnetometers in Fennoscandia. Space Weather, 21, e2022SW003305.
  • Hovland, A. Ø., Laundal, K. M., Reistad, J. P., Hatch, S. M., Walker, S. J., Madelaire, M., & Ohma, A. (2022). The Lompe code: A Python toolbox for ionospheric data analysis. Front. Astron. Space Sci., 9:1025823.
  • Laundal, K. M., Reistad, J. P., Hatch, S. M., Madelaire, M., Walker, S., Hovland, A. Ø., Ohma, A., Merkin, V. G., & Sorathia, K. A. (2022b). Local mapping of polar ionospheric electrodynamics. Journal of Geophysical Research: Space Physics, 2022JA030356.
Swarm
Swarm | The AMPS and Swipe models

We have developed two data products for the Swarm mission with funding from Swarm DISC:

  • AMPS (Average Magnetic Field and Polar current System) is an empirical model of the global ionospheric magnetic field and current system, based on measurements from ESA’s Swarm satellites. PI: Karl Laundal. Python code. Web app
  • SWIPE (Swarm Ionospheric Polar Electrodynamics) is an empirical model that combines AMPS with a model of the electric field, called Swarm Hi-C, to derive ionospheric electrodynamic parameters. PI: Spencer Hatch. Python code

Key publications:

  • Hatch, S. M., Vanhamäki, H., Laundal, K. M., Reistad, J. P., Burchill, J. K., Lomidze, L., Knudsen, D. J., Madelaire, M., and Tesfaw, H.: Does high-latitude ionospheric electrodynamics exhibit hemispheric mirror symmetry?, Ann. Geophys., 42, 229–253, angeo-42-229-2024, 2024.
  • Clemens Kloss, Christopher C Finlay, Karl M Laundal, Nils Olsen, Polar ionospheric currents and high temporal resolution geomagnetic field models, Geophysical Journal International, Volume 235, Issue 2, November 2023, Pages 1736–1760, gji/ggad325.
  • Hatch, S. M., Laundal, K. M., & Reistad, J. P. (2022). Testing the mirror symmetry of Birkeland and ionospheric currents with respect to magnetic latitude, dipole tilt angle, and IMF By. Front. Astron. Space Sci., 9:958977.
  • Laundal, K. M., Finlay, C. C., Olsen, N. & Reistad, J. P. (2018), Solar wind and seasonal influence on ionospheric currents from Swarm and CHAMP measurements, Journal of Geophysical Research - Space Physics, 2018JA025387.
E3D-BRITE
E3D-BRITE | EISCAT_3D-Based Reconstruction of Ionosphere-Thermosphere Electrodynamics

Awarded to Spencer Hatch in 2023. We are developing tools for reconstruction of ionosphere-thermosphere electrodynamics on the basis of EISCAT_3D measurements with funding from the Research Council of Norway over a four-year period, 2024–2028. [Project website on CRISTIN]

Publications (so far):

  • Reistad, J. P., Hatch, S. M., Laundal, K. M., Oksavik, K., Zettergren, M., Vanhamäki, H., & Virtanen, I. (2024). Volumetric Reconstruction of Ionospheric Electric Currents From Tri‐Static Incoherent Scatter Radar Measurements. Journal of Geophysical Research: Space Physics, 129(8), 2024JA032744.

Code:

  • E3DSECS - Tool to perform volumetric reconstruction of electric current density. [Github]
  • EISCAT_3D Uncertainty Estimation (e3doubt) - a toolbox for EISCAT_3D experiment design and uncertainty estimation. [Github]