Solar radiation, which varies over multiple temporal scales, modulates remarkably the
evolution of the ionosphere. The solar activity dependence of the ionosphere is a key and …

We have applied the empirical orthogonal function (EOF) analysis to examine the
climatology of the total ion density Ni at 840 km during the period 1996-2004, obtained from …

The greatest concentration of spacecraft and space debris resides in an orbital band
between 100 and 2000 km altitude, classified as low‐Earth orbit (LEO). Of these space …

Based on the plasma parameters measured by the Ion Velocity Meter (IVM) instrument on
the Ionospheric Connection Explorer (ICON) satellite from 2020 to 2021, we present an …

Incoherent scatter data from a hybrid long-pulse/double-pulse experiment at Jicamarca are
analyzed using a full-profile analysis similar to the one implemented by Holt et al.(1992). In …

We present incoherent scatter radar measurements of electron density, electron and ion
temperatures, and ion composition made at Arecibo Observatory (18.35° N, 66.75° W) …

Long-pulse topside radar data acquired at Jicamarca and processed using full-profile
analysis are compared to data processed using more conventional, range-gated …

We present observations of the topside ionosphere made at the Jicamarca Radio
Observatory in March and September 2013, made using a full‐profile analysis approach …

The main purpose of this paper is to analyze observations of the 630.0‐nm (red line) and
557.7‐nm (green line) zenith airglow intensities measured during the month of October 2002 …

In the equatorial region, the fraction of oxygen ions (O+) in the topside ionosphere contains
information on the source altitude of the plasma, which is controlled, in part, by the vertical …