Indian Equatorial Electrojet Model (IEEJM)
The equatorial electrojet (EEJ) is an intense current jet flowing in the upper atmosphere around 100 km. This is a unique phenomenon that occurs at only a few kilometers in height (e.g., 105–110 km) and with a horizontal (North‐South) width of a few hundred kilometers (e.g., ∼600 km) centered on the geomagnetic equator. The diurnal range of the Geomagnetic H-field greatly enhances near the equator due to this EEJ current. This important geophysical phenomenon gives more insights into the various equatorial ionospheric electrodynamical processes. The IEEJM is an empirical model developed using long-term (nearly two solar cycles) observations of Equatorial Electrojet (EEJ) strength from the ground-based magnetometers over the Indian sector. This model can accurately predict the diurnal, seasonal, and solar activity variations of EEJ, particularly, over the Indian sector under geomagnetically quiet conditions.
This model is publicly released for academic and/or research purposes only.
For more details on this model, we strongly encourage to refer the following research article: Tulasi Ram, S., Ankita, M., Nilam, B., Gurubaran, S., Nair, M., Seemala, G. K., Brahmanandam, P. S., Dimri, A.P., (2024). Empirical model of Equatorial ElectroJet (EEJ) using long‐term observations from the Indian sector. Space Weather, 22, e2024SW003988. https://doi.org/10.1029/2024SW003988.
For more details on this model, we strongly encourage to refer the following research article: Tulasi Ram, S., Ankita, M., Nilam, B., Gurubaran, S., Nair, M., Seemala, G. K., Brahmanandam, P. S., Dimri, A.P., (2024). Empirical model of Equatorial ElectroJet (EEJ) using long‐term observations from the Indian sector. Space Weather, 22, e2024SW003988. https://doi.org/10.1029/2024SW003988.