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dc.contributor.author Zhi, Huang
dc.contributor.author Hong, Yuan
dc.date.accessioned 2018-11-20T15:09:52Z
dc.date.available 2018-11-20T15:09:52Z
dc.date.issued 2015-12-07
dc.identifier.citation Zhi, H., & Hong, Y. (2015). An analysis of ionospheric characteristic parameters retrieved from COSMIC and IRI at Jicamarca during the period of 2007-2013.==$Chinese Journal of Geophysics, 59$==(7), 2333-2343. https://doi.org/10.6038/cjg20160701 es_ES
dc.identifier.uri http://hdl.handle.net/20.500.12816/3732
dc.description.abstract To evaluate comprehensively the performance of the Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) and the International Reference Ionosphere (IRI), ionospheric characteristic parameters, the F2-peak density NmF2 and the F2-peak height HmF2 from Digisonde over Jicamarca (11.95°S, 76.8°W, 1°N geomagnetic) are compared with data from the COSMIC radio occultation and IRI model during the different solar activity period of 2007—2013 in this study. The correlation of the digisonde observations and COSMIC/IRI measurements is analyzed emphatically, and then ionospheric parameters at Jicamarca being overestimated/underestimated by COSMIC and IRI are further discussed. The results are shown as follows: (1) Both the COSMIC-derived NmF2 and the IRI-derived NmF2 are in good agreement with the digisonde-derived measurements, and the correlation coefficients are more than 0.8. The correlation of the COSMIC-derived NmF2 in the solar minimum is greater than that in the solar maximum, and while the correlation of the IRI-derived NmF2 in the solar minimum is smaller than that in the solar maximum; (2) The HmF2 correlation between COSMIC/IRI and digisonde in spring and autumn is greater than that in summer and winter. Most seasonal and temporal correlation coefficients of COSMIC-derived HmF2 are more than 0.8 and 0.6, respectively. However, the correlation of the IRI-derived HmF2 decreased significantly, especially for the summer season in the solar minimum and dusk segment with a value of less than 0.3; (3) The ionospheric parameters are generally overestimated by COSMIC and IRI in the daytime and while they are underestimated from night to dawn in the solar minimum. Distinct from that in the solar minimum, the NmF2 are overestimated during the post-night (0000 LT—0500 LT) in the solar maximum. The current research could be useful for the ionospheric model improvement as well as data assimilation work based on the IRI model and COSMIC radio occultation data. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Geophysical Union es_ES
dc.relation.ispartof urn:issn:0898-9591
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Digisonde es_ES
dc.subject COSMIC es_ES
dc.subject IRI es_ES
dc.subject Ionospheric character parameter es_ES
dc.subject Correlation es_ES
dc.title An analysis of ionospheric characteristic parameters retrieved from COSMIC and IRI at Jicamarca during the period of 2007-2013 es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.05.01 es_ES
dc.identifier.journal Chinese Journal of Geophysics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi https://doi.org/10.6038/cjg20160701 es_ES

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