@Article{HajraEcheTsurGonz:2014:HIPrCI,
               author = "Hajra, Rajkumar and Echer, Ezequiel and Tsurutani, Bruce T. and 
                         Gonzalez, Walter Demetrio",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Jet Propulsion 
                         Laboratory (JPL) - California Institute of Technology} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Solar wind-magnetosphere energy coupling efficiency and 
                         partitioning: HILDCAAs and preceding CIR storms during solar cycle 
                         23",
              journal = "Journal of Geophysical Research: Space Physics",
                 year = "2014",
               volume = "119",
               number = "4",
                pages = "2675–2690",
                month = "Apr.",
             keywords = "solar wind-magnetosphere energy coupling efficiency, 
                         magnetospheric energy partitioning, HILDCAAs, CIR storms, joule 
                         heating, ring current injection.",
             abstract = "A quantitative study on the energetics of the solar 
                         wind-magnetosphere-ionosphere system during High-Intensity, 
                         Long-Duration, Continuous AE Activity (HILDCAA) events for solar 
                         cycle 23 (from 1995 through 2008) is presented. For all HILDCAAs, 
                         the average energy transferred to the magnetospheric/ionospheric 
                         system was ~6.3\ ×1016 J, and the ram kinetic energy of the 
                         incident solar wind was ~7.1\ ×1018 J. For individual 
                         HILDCAA events the coupling efficiency, defined as the ratio of 
                         the solar wind energy input to the solar wind kinetic energy, 
                         varied between 0.3% and 2.8%, with an average value of ~0.9%. The 
                         solar wind coupling efficiency for corotating interaction region 
                         (CIR)-driven storms prior to the HILDCAA events was found to vary 
                         from ~1% to 5%, with an average value of ~2%. Both of these values 
                         are lower than the> 5% coupling efficiency noted for 
                         interplanetary coronal mass ejection (and sheath)-driven magnetic 
                         storms. During HILDCAAs, ~67% of the solar wind energy input went 
                         into Joule heating, ~22% into auroral precipitation, and ~11% into 
                         the ring current energy. The CIR-storm Joule heating (~49%) was 
                         noticeably less than that during HILDCAAs, while the ring current 
                         energies were comparable for the two. Joule dissipation was higher 
                         for HILDCAAs that followed CIR-storms (88%) than for isolated 
                         HILDCAAs (~60%). Possible physical interpretations for the 
                         statistical results obtained in this paper are discussed.",
                  doi = "10.1002/2013JA019646",
                  url = "http://dx.doi.org/10.1002/2013JA019646",
                 issn = "2169-9402",
                label = "self-archiving-INPE-MCTI-GOV-BR",
             language = "en",
           targetfile = "RevisedManuscript.pdf",
        urlaccessdate = "03 maio 2024"
}