%0 Audiovisual Material %@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S} %@nexthigherunit 8JMKD3MGPCW/3ETL868 8JMKD3MGPCW/3EUFCFP %@usergroup seeger05 %3 COSPAR 2008 pôster_Cristiano Sarzi Machado - 743 A Comparavtive...pdf %B Scientific Assembly Committee on Space Research, (37Th). %X A comparative study of airglow intensity nocturnal variations of the OI 630nm and OI 557.7nm emissions at two different sites in Brazil but with a same geomagnetic latitude: Southeast (Cachoeira Paulista: 22.7ºs, 45ºw, -34ºdip lat) and South (São Martinho da Serra: 29ºs, 53ºw, -33º dip lat) has been carried out. The data for the South of Brazil were obtained at the Brazilian Southern Space Observatory - CRS/CIE/INPE-MCT. The two sites are located in the central region of the South Atlantic Magnetic Anomaly - SAMA. Monthly averaged nocturnal variations of the two emissions are compared each other and studied the difference between the two sites. The principal focus of this work is to obtain and to compare the typical nocturnal variations of the OI 630nm and OI 557.7nm emissions along the last 6 years, since 2001. The data showed a strong seasonal variation, with maxima in the equinox seasons (March-April and September-October) and with minima in the solstices (June-July and December-January). The OI 630.0nm intensity depletions caused by plasma bubbles along the magnetic field line were seen. The depletions were observed more frequently in the period from September to March during the summer seasons. Comparing the emission intensities from the two sites, an asymmetric variation was observed. An interpretation for this fact is presented. %T A comparative study of airglow intensity at two different sites with the same geomagnetic latitude: southeastern(22.7 S, 45 W, -34 dip lat) and southern Brazil (29 S, 53 W, -33 dip lat) %@format On-line %8 18-25, July %@visibility shown %@group RSU-CIE-INPE-MCT-BR %@group RSU-CIE-INPE-MCT-BR %@group RSU-CIE-INPE-MCT-BR %@group RSU-CIE-INPE-MCT-BR %@group RSU-CIE-INPE-MCT-BR %@group DAE-CEA-INPE-MCT-BR %@group DAE-CEA-INPE-MCT-BR %J São José dos Campos %@secondarykey INPE--MAO/ %2 sid.inpe.br/mtc-m18@80/2008/12.02.14.50.17 %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %I Instituto Nacional de Pesquisas Espaciais %4 sid.inpe.br/mtc-m18@80/2008/12.02.14.50 %D 2008 %O ISSN 1815-2619 %A Machado, Cristiano Sarzi, %A Schuch, Mateus H., %A Santos, Tardelli. D., %A Schuch, Nelson Jorge, %A Rosa, Marcelo Barcellos da, %A Takahashi, Hisao, %A Gobbi, Delano, %A Makita, Kazuo, %C Montreal, Canada %@area CEA