Title:

Ground magnetic perturbations associated with "Ultra-Fast Kelvin Wave (UFKW) Variations in the Surface Magnetic Field"


Description:

The data set is based on the thermosphere-ionosphere-electrodynamics general circulation model (TIEGCM) simulation results and a post-processing 3D ionospheric current and magnetic perturbation calculation, which is used in the publication "Ultra-Fast Kelvin Wave (UFKW) Variations in the Surface Magnetic Field" by Forbes et al.

Focus is on an eastward-propagating ultra-fast Kelvin wave (UFKW) packet with periods between 2-4 days and zonal wavenumber s = -1 during DOY 266-281, 2009. Two sets of simulations are provided with different lower boundary (97km) conditions: 1. forced by daily and zonal mean (S0) 2. forced by S0 and 2-7days with s=-1 perturbations with the planetary wave amplitudes increased by a factor of 1.5. For these simulations the solar flux and geomagnetic forcing is held constant. Hourly output is provided of the neutral wind, neutral temperature, and ground magnetic perturbations.


Metadata URL:

https://gdex.ucar.edu/dataset/id/9cae43fa-9ac0-4123-a5be-838f920d90dc.html