This layer is home to the winter and equatorial anomalies, as well as an electrostatic field known as the equatorial electrojet. The NASA AEROS probes were launched to explore its F layer, which is also called the Appleton layer. Its D layer is affected by polar cap absorption during solar proton events. Its other sections include the E layer, named after Kennelly and Heaviside, and the sporadic E layer, which can cause hops in radio signals. For 10 points, name this inner layer of the magnetosphere, named for its high concentration of charged 
This layer is home to the winter and equatorial anomalies, as well as an electrostatic field known as the equatorial electrojet. The NASA AEROS probes were launched to explore its F layer, which is also called the Appleton layer. Its D layer is affected by polar cap absorption during solar proton events. Its other sections include the E layer, named after Kennelly and Heaviside, and the sporadic E layer, which can cause hops in radio signals. For 10 points, name this inner layer of the magnetosphere, named for its high concentration of charged particles.
This layer is home to the winter and equatorial anomalies, as well as an electrostatic field known as the equatorial electrojet.
{ionosphere} [prompt on {magnetosphere} before it is read]