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A short note on the assimilation of collocated and concurrent GPS and ionosonde data into the Electron Density Assimilative Model
Author(s) -
Angling M. J.,
JacksonBooth N. K.
Publication year - 2011
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2010rs004566
Subject(s) - ionosonde , ionogram , ionosphere , global positioning system , electron density , data assimilation , total electron content , geodesy , meteorology , remote sensing , slab , geology , computer science , electron , physics , geophysics , tec , telecommunications , quantum mechanics
The Electron Density Assimilative Model (EDAM) has been developed to provide real‐time characterizations of the ionosphere by assimilating diverse data sets into a background model. Techniques have been developed to assimilate virtual height ionogram traces rather than relying on true height inversions. A test assimilation has been conducted using both GPS and ionosonde data as input. Postassimilation analysis shows that foF2 residuals can be degraded when only GPS data are assimilated. It has also been demonstrated that by using both data types it is possible to have low total electron content and foF2 residuals and that this is achieved by modifying the ionospheric slab thickness.