Mostrar el registro sencillo del ítem Valladares, C. E. Sheehan, R. 2018-11-21T12:39:30Z 2018-11-21T12:39:30Z 2016-08-10
dc.identifier.issn 1944-799X
dc.description.abstract "This study has used total electron content (TEC) values from an extended network of GPS receivers and a highly developed processing to characterize the conjugacy of medium‐scale traveling ionospheric disturbances (MSTIDs) over the American continent. It was found that midlatitude nighttime MSTIDs, also named electrobuoyancy waves, map into the opposite hemisphere but the amplitude of the TEC disturbance in the Southern Hemisphere is between 8 and 13% of the amplitude in the original hemisphere. The periods of the MSTIDs vary between 50 and 65 min. MSTID dynamics is presented for two days: 20 August 2012 and 17 June 2012. On the first day, MSTIDs entered into the American sector shortly before 4 UT, last for 3 h, drifted at an average speed of 200 m/s, and dissipated in the Caribbean region. In the Northern Hemisphere, the MSTIDs were directed southwestward (SW) and 60° from south. In the Southern Hemisphere, they moved northwestward (NW) or ~60° from north. The MSTID velocity changed through the night from ~300 m/s to ~150 m/s, but the propagation direction did not vary. On 17 June 2012 a series of wide MSTIDs were seen traveling across the Caribbean region that exited through the western coast of Central America. These MSTIDs last for ~5 h. Number density measured with the DMSP‐F15 and DMSP‐F17 satellites confirm the notion that the MSTIDs consist of rising and falling sheets of plasma density driven by electric fields likely set by a Perkins‐type instability. These observations support the notion that gravity waves can seed and boost the growth of the nighttime MSTIDs". es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Radio Science es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Electrones es_ES
dc.subject Sistema de posicionamiento global es_ES
dc.subject Ionósfera--Mediciones es_ES
dc.subject Ionósfera--Investigación es_ES
dc.subject Satélites artificiales es_ES
dc.subject Densidad del plasma es_ES
dc.subject Campos eléctricos es_ES
dc.subject Inestabilidades del plasma es_ES
dc.subject Ondas gravitatorias es_ES
dc.title Observations of conjugate MSTIDs using networks of GPS receivers in the American sector es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Atmósfera es_ES
dc.subject.ocde Observación es_ES
dc.subject.ocde Américas es_ES
dc.subject.ocde Geofísica es_ES
dc.subject.ocde Ciencias espaciales es_ES
dc.identifier.journal Radio science es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1002/2016RS005967 es_ES




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