%0 Journal Article %@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S} %@nexthigherunit 8JMKD3MGPCW/3EU29DP %@resumeid %@resumeid %@resumeid 8JMKD3MGP5W/3C9JH3D %X We analyze the data obtained using the Arecibo incoherent scatter radar to examine the response of the topside ionosphere to a moderate geomagnetic storm that occurred during the period March 7-11, 2008. During this time period a magnetic storm with a non-monotonic main phase decrease in the Dst index occurred. The recovery phase also exhibited a secondary Dst decrease. During the initial phase of the storm, Te and Ti increased coincident with the arrival of the solar wind. The main phase registered an increase in proton concentration proportional to Ne while temperatures reached the lowest values. Variations in O(+) concentration were not significant but a reduction in helium fraction was observed. Soon after the peak of the storm, the transition height between the topside ionosphere and the protonosphere, where H(+) ions dominate composition, was lower than would be expected during quiet conditions and this behavior lasted for approximately 12 h. %8 July %N 11-12 %T Response of the topside ionosphere over Arecibo to a moderate geomagnetic storm %@electronicmailaddress %@electronicmailaddress %@electronicmailaddress eecher@dge.inpe.br %@secondarytype PRE PI %K Topside ionosphere, Geomagnetic storm, Arecibo Observatory, Incoherent scatter radar. %@archivingpolicy denypublisher denyfinaldraft24 %@usergroup administrator %@usergroup lattes %@usergroup tereza@sid.inpe.br %@group %@group %@group DGE-CEA-INPE-MCT-BR %@e-mailaddress eecher@dge.inpe.br %3 Garzon-JASTP-v73-n11-12-p1568-74science[1].pdf %@secondarymark B2_ASTRONOMIA_/_FÍSICA B1_CIÊNCIAS_BIOLÓGICAS_I B1_ECOLOGIA_E_MEIO_AMBIENTE B1_ENGENHARIAS_IV B1_GEOCIÊNCIAS A2_INTERDISCIPLINAR %F lattes: 3869820274542343 3 GarzónBEASGKW:2011:ReOfTh %@issn 1364-6826 %2 dpi.inpe.br/plutao/2011/09.22.19.40.16 %@affiliation Natl Astron & Ionosphere Ctr, Arecibo Observ %@affiliation Univ Puerto Rico %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Natl Astron & Ionosphere Ctr, Arecibo Observ %@affiliation Natl Astron & Ionosphere Ctr, Arecibo Observ %@affiliation Natl Astron & Ionosphere Ctr, Arecibo Observ %@affiliation Sci Solut Inc %@affiliation Univ Illinois, Coordinated Sci %@project CNPq 300211/2008-2; FAPESP 2007/52533-1 %B Journal of Atmospheric and Solar-Terrestrial Physics %@versiontype publisher %P 1568-1574 %4 dpi.inpe.br/plutao/2011/09.22.19.40.15 %@documentstage not transferred %D 2011 %V 73 %@doi 10.1016/j.jastp.2011.02.016 %A Garzón, Diana Prado, %A Brum, Christiano G. M., %A Echer, Ezequiel, %A Aponte, Néstor, %A Sulzer, Michael P., %A González, Sixto A., %A Kerr, Robert B., %A Waldrop, Lara, %@dissemination WEBSCI; PORTALCAPES; AGU; MGA; COMPENDEX. %@area CEA