@Article{RastogiChaShaTriFon:2013:CoEqEl,
               author = "Rastogi, R. G. and Chandra, H. and Shah, R. and Trivedi, Nalin 
                         Babulal and Fontes, S. L.",
          affiliation = "{Physical Research Laboratory} and {Physical Research Laboratory} 
                         and {Physical Research Laboratory} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Observatario Nacional}",
                title = "A comparison of equatorial electrojet in Peru and East Brazil",
              journal = "Open Atmospheric Science Journal",
                 year = "2013",
               volume = "7",
               number = "1",
                pages = "29--36",
             keywords = "equatorial electrojet, equatorial E-region, geomagnetism.",
             abstract = "The paper describes the characteristics of the equatorial 
                         electrojet at Huancayo (HUA, 12.1oS, 75.3oW, inclination 1.5oN, 
                         declination 1.0oE) in western side of South America, where the 
                         geomagnetic field is aligned almost along the geographic meridian, 
                         and at Itinga (ITI, 4.3oS, 47.0oW, inclination 1.4oN, declination 
                         19.3oW) in eastern part of South America, where the geomagnetic 
                         field is aligned about 19o west of the geographic meridian; 
                         although the mean intensity of the magnetic field in the two 
                         regions are almost of the same order. Further comparisons are made 
                         of the current at Itinga and at Tatuoca (TTB, 1.2oS, 48.5oW, 
                         inclination 7.8o N, declination 18.7oW), a low latitude station in 
                         the same longitude sector. The daily range of horizontal component 
                         of the geomagnetic field, H, is shown to be almost 16% higher at 
                         HUA compared to that at ITI. The daily variation of the eastward 
                         field, Y, showed a strong minimum of -40 nT around 13-14 hr LT at 
                         ITI whereas very low values were observed at HUA with a positive 
                         peak of about 4 nT around 11-12 hr LT. The vertical field, Z, 
                         showed abnormally large negative values of -70 nT at TTB around 13 
                         hr LT. The day-today fluctuations of midday and midnight values of 
                         X field were positively correlated between HUA and ITI with a high 
                         correlation coefficient of 0.78 and 0.88 respectively. Values of Y 
                         field were also significantly positively correlated between HUA 
                         and ITI for midnight hours (0.72), while no correlation was 
                         observed for the midday hours. The midnight values of X field at 
                         HUA, ITI and TTB showed significant (0.90 or greater) correlation 
                         with Dst index. Correlation values of about 0.7 were observed 
                         between Dst and midday values of X at ITI and TTB and to a lesser 
                         degree (0.4) at HUA. © Rastogi et al.; Licensee Bentham Open.",
                 issn = "1874-2823",
                label = "scopus 2013-11",
             language = "en",
        urlaccessdate = "16 jun. 2024"
}