%0 Journal Article %3 souza.pdf %@mirrorrepository sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 %4 sid.inpe.br/mtc-m19@80/2010/08.02.11.51 %@issn 0273-1177 %A Souza, J. R., %A Brum, C. G. M., %A Abdu, Mangalathayil Ali, %A Batista, I. S., %A Jr., W. D. Asevedo, %A Baileyc, G. J., %A Bittencourt, J. A., %@secondarytype PRE PI %B Advances in Space Research %D 2010 %F self-archiving-INPE-MCTIC-GOV-BR %@secondarykey INPE--PRE/ %K Ionospheric modeling, IRI, SUPIM model, E region, F region. %@archivingpolicy denypublisher denyfinaldraft24 %@secondarymark B4_ASTRONOMIA_/_FÍSICA B3_CIÊNCIAS_BIOLÓGICAS_I B1_ENGENHARIAS_III B1_ENGENHARIAS_IV B1_GEOCIÊNCIAS B1_INTERDISCIPLINAR %T Parameterized Regional Ionospheric Model and a comparison of its results with experimental data and IRI representations %V Article in Press, Corrected Proof %X We describe a Parameterized Regional Ionospheric Model (PARIM) to calculate the spatial and temporal variations of the ionospheric electron density/plasma frequency over the Brazilian sector. The ionospheric plasma frequency values as calculated from an enhanced Sheffield University PlasmasphereIonosphere Model (SUPIM) were used to construct the model. PARIM is a time-independent 3D regional model (altitude, longitude/local time, latitude) used to reproduce SUPIM plasma frequencies for geomagnetic quiet condition, for any day of the year and for low to moderately high solar activity. The procedure to obtain the modeled representation uses finite Fourier series so that all plasma frequency dependencies can be represented by Fourier coefficients. PARIM presents very good results, except for the F region peak height (hmF2) near the geomagnetic equator during times of occurrence of the F3 layer. The plasma frequency calculated by IRI from E region to bottomside of the F region present latitudinal discontinuities during morning and evening times for both solar minimum and solar maximum conditions. Both the results of PARIM and the IRI for the E region peak density show excellent agreement with the observational values obtained during the conjugate point equatorial experiment (COPEX) campaign. The IRI representations significantly underestimate the foF2 and hmF2 compared to the observational results over the COPEX sites, mainly during the eveningnighttime period. %@area CEA %@documentstage not transferred %@group DAE-CEA-INPE-MCT-BR %@group %@group DAE-CEA-INPE-MCT-BR %@group DAE-CEA-INPE-MCT-BR %@group %@group %@group DAE-CEA-INPE-MCT-BR %@dissemination WEBSCI; PORTALCAPES. %@usergroup administrator %@usergroup banon %@usergroup marciana %@nexthigherunit 8JMKD3MGPCW/3ETL868 %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation National Astronomy and Ionosphere Center, Space and Atmospheric Science Department, Arecibo Observatory, Puerto Rico %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation %@affiliation Department of Applied Mathematics, University of Sheffield, Sheffield S3 7RH, UK %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@versiontype publisher %@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S} %@doi 10.1016/j.asr.2009.11.025 %2 sid.inpe.br/mtc-m19@80/2010/08.02.11.51.25