INVESTIGADORES
ELIAS Ana Georgina
congresos y reuniones científicas
Título:
Long-term changes in the geomagnetic Sq field
Autor/es:
ANA G. ELIAS; MARTA ZOSSI DE ARTIGAS
Lugar:
Sodankyla
Reunión:
Workshop; 4th Workshop on Long-Term Changes and Trends in the Atmosphere; 2006
Institución organizadora:
IAGA - ICMA- CAWSES, Sodankyla Geophysical Observatory
Resumen:
The cooling of the mesosphere and thermosphere due to an increase in greenhouse gases concentration may induce trends in the ionospheric E layer, which in fact have been already observed. In the present work, the daily range of geomagnetic Sq field is analyzed to detect long-term changes, which may arise due to the observed trends in the E layer. Since Sq field variations are a manifestation of ionospheric current systems which flow between 90 and 200 km, trends in the E layer would possibly induce trends in Sq. foE data together with the hourly H component of the geomagnetic field for several mid and low latitude stations averaged for the five quietest days of each month were used for the present analysis.
