The knowledge of accurate solar indices is essential to reliably forecast the conditions of the near-Earth space environment. The International Reference Ionosphere (IRI) model, based on R12 and IG12 solar indices, provides a climatological depiction of the ionospheric plasma that can be different from the real one, especially at solar terminator and for disturbed conditions. Assimilating data from a grid of ionosondes is possible to obtain effective values of R12 and IG12 that can significantly improve the electron density representation made by the IRI model. Universal Kriging interpolation method is employed for spatial mapping these indices.
Effective solar indices for ionospheric modeling: a proposal for a real time IRI
Alessio Pignalberi
;Michael Pezzopane;Rolando Rizzi;
2017
Abstract
The knowledge of accurate solar indices is essential to reliably forecast the conditions of the near-Earth space environment. The International Reference Ionosphere (IRI) model, based on R12 and IG12 solar indices, provides a climatological depiction of the ionospheric plasma that can be different from the real one, especially at solar terminator and for disturbed conditions. Assimilating data from a grid of ionosondes is possible to obtain effective values of R12 and IG12 that can significantly improve the electron density representation made by the IRI model. Universal Kriging interpolation method is employed for spatial mapping these indices.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
