%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3ETL868 8JMKD3MGPCW/3EU29DP
%3 1-s2.0-S1364682600001681-main.pdf
%X The dominant interplanetary phenomena causing intense magnetic storms are the interplanetary manifestations of fast coronal mass ejections (CMEs). Two interplanetary structures are important for the development of such class of storms, involving an intense and long duration Bs component of the IMF: the sheath region just behind the forward shock, and the CME ejecta itself. Frequently, these structures lead to the development of intense storms with two-step growth in their main phases. These structures also lead sometimes to the development of very intense storms, especially when an additional interplanetary shock is found in the sheath plasma of the primary structure accompanying another stream. The second stream can also compress the primary cloud, intensifying the Bs field, and bringing with it an additional Bs structure. Thus, at times very intense storms are associated with three or more B-s structures. We also discuss evidence that magnetic clouds with very intense core magnetic fields tend to have large velocities, thus implying large amplitude interplanetary electric fields that can drive very intense storms.
%8 Mar.
%N 5
%T Solar and interplanetary causes of very intense geomagnetic storms
%@electronicmailaddress gonzalez@dge.inpe.br
%@electronicmailaddress alicia@dge.inpe.br
%@electronicmailaddress jsobral@dae.inpe.br
%@electronicmailaddress dallago@dge.inpe.br
%K tempestades magnéticas, vento solar, pertubações, ejeção de massa coronal, campos magnéticos interplanetários, magnetic storms, solar wind, disturbances, coronal mass ejection, interplanetary magnetic field.
%@secondarytype PRE PI
%@archivingpolicy denypublisher denyfinaldraft24
%@usergroup administrator
%@usergroup jefferson
%@group DGE-INPE-MCT-BR
%@group DGE-INPE-MCT-BR
%@group DAE-INPE-MCT-BR
%@group DGE-INPE-MCT-BR
%@secondarykey INPE-8873-PRE/4583
%F 9822
%@issn 1364-6826
%2 sid.inpe.br/iris@1905/2005/08.02.22.12.18
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@project CNPq (300004/91-5; 391544/91-3; 522919/96-0).
%B Journal of Atmospheric and Solar-Terrestrial Physics
%@versiontype publisher
%P 403-412
%4 sid.inpe.br/iris@1905/2005/08.02.22.12
%@documentstage not transferred
%D 2001
%V 63
%A Gonzalez, Walter Demétrio,
%A Gonzalez, Alicia Luisa Clua de,
%A Sobral, José Humberto Andrade,
%A Dal Lago, Alisson,
%A Vieira, L. E. A.,
%@dissemination WEBSCI; PORTALCAPES; AGU; MGA; COMPENDEX.
%@area CEA