%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3EU29DP
%@resumeid 8JMKD3MGP5W/3C9JH3D
%3 Echer-JASTP-v73-n11-2-p1454-9.pdf
%X A catalog of 1377 geomagnetic storms with peak Dst (Dst(p)) <= -50 nT for the period 1957-2008 has been compiled. The dependence of Dst(p) on the solar cycle and annual variation are studied in this paper. It is found that geomagnetic storm peak intensity distribution can be described by an exponential form, P(Dst(p)) approximate to 1.2e(-Dstp/34) where P is the probability of geomagnetic storm occurrence with a given value Dstp. The updated solar cycle and annual distribution of geomagnetic storms have confirmed the expected behavior. For the solar cycle variation, geomagnetic storms display a two-peak distribution, with one peak close to solar maximum and the other a few years later in the beginning of the declining phase. Geomagnetic storms follow the well-known seasonal variation of geomagnetic activity. More intense storms show a peak in probability occurrence in July, confirming previous observations. These results are of practical importance for space weather applications.
%8 july
%N 11-12
%T Statistical studies of geomagnetic storms with peak Dst < -50 nT from 1957 to 2008
%@electronicmailaddress eecher@dge.inpe.br
%@secondarytype PRE PI
%K Geomagnetic storms, Ring current, Magnetosphere, Space weather.
%@archivingpolicy denypublisher denyfinaldraft24
%@usergroup administrator
%@usergroup lattes
%@usergroup tereza@sid.inpe.br
%@group DGE-CEA-INPE-MCT-BR
%@group DGE-CEA-INPE-MCT-BR
%@e-mailaddress eecher@dge.inpe.br
%@secondarymark B2_ASTRONOMIA_/_FÍSICA B1_CIÊNCIAS_BIOLÓGICAS_I B1_ECOLOGIA_E_MEIO_AMBIENTE B1_ENGENHARIAS_IV B1_GEOCIÊNCIAS A2_INTERDISCIPLINAR
%F lattes: 3869820274542343 1 EcherGonzTsur:2011:StStGe
%@issn 1364-6826
%2 dpi.inpe.br/plutao/2011/09.22.19.40.14
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Jet Propulsion Lab, Pasadena, CA
%@project CNPq[PQ-300211/2008-2]; FAPESP[2007/52533-1]; FAPESP agency[2008/06650-9]
%B Journal of Atmospheric and Solar-Terrestrial Physics
%P 1454-1459
%4 dpi.inpe.br/plutao/2011/09.22.19.40
%@documentstage not transferred
%D 2011
%V 73
%@doi 10.1016/j.jastp.2011.04.021
%A Echer, Ezequiel,
%A Gonzalez, W. D.,
%A Tsurutani, B. T.,
%@dissemination WEBSCI; PORTALCAPES; AGU; MGA; COMPENDEX.
%@area CEA