EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Planetary wave activity observed in atmosphere-ionosphere system over low latitudes

Ashish Jadhav1, Gurubaran Subramanian1, and Parashram Patil2
Ashish Jadhav et al.
  • 1Indian Institute of Geomagnetism, Navi Mumbai, India (
  • 2MF radar facility, Indian Institute of geomagnetism, Kolhapur, India

The coupled response of the atmosphere-ionosphere system to planetary waves propagating from below has been observed through MF and Meteor radars at different longitudes along with the ground geomagnetic data from 23 stations of Northern (NH) and Southern Hemisphere (SH) during northern winter months of January, 2015 and 2017. The focus is on delineating the quasi-2-day (Q2DW) and quasi-6-day wave signatures in the mesosphere-lower thermosphere (MLT) and in ionospheric Sq currents besides deciphering their effects on the overall neutral dynamics at low latitudes. Analysis extended to longitudinally separated stations confirms the penetration of these planetary waves into the ionosphere either directly or indirectly through interaction with other wave modes in the MLT region.

How to cite: Jadhav, A., Subramanian, G., and Patil, P.: Planetary wave activity observed in atmosphere-ionosphere system over low latitudes, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-9390,, 2022.