Buscar
Mostrando ítems 1-10 de 68
Linear Vary-Chap Topside Electron Density Model with Topside Sounder and Radio-Occultation Data
(2019-03-01)
The Linear Vary-Chap function has received increased attention in describing the topside ionosphere due to its good performance for predicting and extrapolating radio-occultation (RO) electron density ionospheric profiles. ...
Comparison of topside equatorial parameters derived from DMSP, Jicamarca, and Another Model of the Ionosphere (SAMI2)
(American Geophysical Union, 2005-01-19)
Comparison is made of topside equatorial parameters obtained from DMSP satellites with those measured from Jicamarca radar and those calculated from Another Model of the Ionosphere (SAMI2). To determine acceptable limits ...
Sensitivity studies of equatorial topside electron and ion temperatures
(American Geophysical Union, 2011-06-30)
Even in the recent extremely low solar minimum the electron and ion temperatures in the low‐latitude topside ionosphere display a great deal of day‐to‐day variability. This paper explores this variability using both the ...
Contribution of the topside and bottomside ionosphere to the total electron content during two strong geomagnetic storms
(American Geophysical Union, 2016-02-12)
In this study, the ionospheric observations from ionosondes, GPS receivers, and incoherent scatter radars (ISR) at low and middle latitudes were used to investigate the contribution of the bottomside and topside ionosphere ...
Response of the topside and bottomside ionosphere at low and middle latitudes to the October 2003 superstorms
(American Geophysical Union, 2015-07-14)
Ionospheric observations from the ground‐based GPS receiver network, CHAMP and GRACE satellites and ionosondes were used to examine topside and bottomside ionospheric variations at low and middle latitudes over the Pacific ...
Radar observations of the topside ionosphere
(Instituto Geofísico del Perú, 2010)
Presentación interna del Radio Observatorio de Jicamarca-IGP.
Topside measurements at Jicamarca during solar minimum
(European Geosciences Union (EGU), 2009-01-23)
Long-pulse topside radar data acquired at Jicamarca and processed using full-profile analysis are compared to data processed using more conventional, range-gated approaches and with analytic and computational models. The ...
Topside ionospheric effective scale heights (HT) derived with ROCSAT‐1 and ground‐based ionosonde observations at equatorial and midlatitude stations
(American Geophysical Union, 2009-10-16)
In this study we propose the assimilation of topside in situ electron density data from the Republic of China Satellite (ROCSAT‐1) along with the ionosonde measurements for accurate determination of topside ionospheric ...
Plasma bubble phenomenon in the topside ionosphere
(Elsevier, 2007-04-02)
There are the indications that plasma bubbles/flux tube aligned plasma density depletions, produced by Rayleigh–Taylor instability at the bottomside of ionosphere, could rise up to the topside ionosphere and plasmasphere. ...
GPS and in situ Swarm observations of the equatorial plasma density irregularities in the topside ionosphere
(SpringerOpen, 2016-07-15)
Here we study the global distribution of the plasma density irregularities in the topside ionosphere by using the concurrent GPS and Langmuir probe measurements onboard the Swarm satellites. We analyze 18 months (from ...