@InProceedings{DenardiniPBNCRMCRSW:2021:ReAdDe,
               author = "Denardini, Clezio Marcos and Pican{\c{c}}o, Giorgio Arlan da 
                         Silva and Barbosa Neto, Paulo Fran{\c{c}}a and Nogueira, P. A. B. 
                         and Carmo, Carolina de Sousa do and Resende, Laysa Cristina 
                         Ara{\'u}jo and Moro, Juliano and Chen, Sony Su and 
                         Romero-Hernandez, E. and Silva, R{\'e}gia Pereira da and Wrasse, 
                         Cristiano Max",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and Federal Institute of Education, 
                         Science and Technology of Sao Paulo and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidad AutŽonoma de Nuevo LeŽon} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Recent advances for developing ionospheric scale index map based 
                         on TEC data for South America",
                 year = "2021",
         organization = "Simp{\'o}sio Brasileiro de Geof{\'{\i}}sica Espacial e 
                         Aeronomia, 8. (SBGEA)",
             abstract = "The present work shows a summary of our recent advances for 
                         developing an ionospheric scales index map based on the 
                         Disturbance Ionospheric Index (DIX) that covers the whole South 
                         America. This index aims to target all the different user groups 
                         affected by ionospheric disturbances, e.g. the navigation, 
                         positioning, and satellite communication users, in a simple and 
                         straightforward approach. Therefore, we used the Vertical TEC 
                         (VTEC) over South America to calculate the Total Electron Content 
                         Maps covering latitudes from 60 S to 20 N and longitudes from 90 
                         to 30 W, with 0.5x0.5 degrees resolution. Afterward, the DIX Maps 
                         are obtained to reveal the variation of the TEC over an average 
                         quiet ionosphere background. In order to illustrate the use of the 
                         map index, the ionospheric disturbances after and during the 
                         December 17-23, 2015 intense geomagnetic storm and the 2015 Saint 
                         Patrick magnetic storm are presented as an example of the 
                         disturbances in the DIX at different latitudinal ranges and under 
                         different magnetic conditions. The results are compared to the 
                         traces of the ionograms obtained at three different ionospheric 
                         stations (Fortaleza, Campo Grande, and Cachoeira Paulista) in 
                         Brazil acquired in the same period and at the same time rate. 
                         Among the results, the DIX Map revealed some patches of Disturbed 
                         and Weakly Disturbed ionospheric conditions during the 
                         magnetically quiet time prior to the storm, which were associated 
                         with range and frequency Spread-F over the same area as observed 
                         in ionograms. Also, the information from the southern portion of 
                         the dip equator showed a transition from occurrences of Spread-F 
                         prior to sunrise to a condition favorable enough to develop a F3 
                         layer after sunrise.",
  conference-location = "Online",
      conference-year = "22-26 mar.",
             language = "en",
        urlaccessdate = "09 maio 2024"
}