Title
Broad plasma depletions detected in the bottomside of the equatorial F region: Simultaneous ROCSAT-1 and JULIA observations
Date Issued
01 July 2014
Access level
open access
Resource Type
journal article
Author(s)
Publisher(s)
Blackwell Publishing Ltd
Abstract
We investigated the association of broad plasma depletions (BPDs) with plasma bubbles and ionospheric uplift in the equatorial F region using the coincident satellite and radar observations over Jicamarca in Peru. BPDs were detected by the first Republic of China satellite (ROCSAT-1) on the nights of 21 and 22 December 2002 during the period of moderate geomagnetic activity. The observations of the Jicamarca Unattended Long-term Investigations of the Ionosphere and Atmosphere radar and an ionosonde showed that the F peak height was lifted above the ROCSAT-1 altitude (600 km) at the times of the BPD detection. The fraction of NO+ was substantial at the locations of BPDs. These observations support the association of the BPDs with the ionospheric uplift. However, the absence of large backscatter plumes at the times of the BPD detection indicates that the BPDs were not produced by a single large bubble or a merger of bubbles. Key Points Broad plasma depletions (BPDs) are the bottomside phenomena BPDs are not associated with the evolution of plasma bubbles Ionospheric uplift is responsible for the satellite detection of BPDs ©2014. American Geophysical Union. All Rights Reserved.
Start page
5978
End page
5984
Volume
119
Issue
7
Language
English
OCDE Knowledge area
Meteorología y ciencias atmosféricas
Subjects
Scopus EID
2-s2.0-84906319208
PubMed ID
Source
Journal of Geophysical Research: Space Physics
Sources of information:
Directorio de Producción Científica
Scopus