Ionospheric Scale Index Map Based on TEC Data During the Saint Patrick Magnetic Storm and EPBs
Abstract This study examines the variability of the ionospheric content during the period around the 2015 Saint Patrick magnetic storm and when equatorial plasma bubbles (EPBs) are observed during the quiet time over South America during two other events. It uses the ionospheric scales index map bas...
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| Format: | Article |
| Language: | English |
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Wiley
2020-09-01
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| Series: | Space Weather |
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| Online Access: | https://doi.org/10.1029/2019SW002330 |
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| author | C. M. Denardini G. A. S. Picanço P. F. Barbosa Neto P. A. B. Nogueira C. S. Carmo L. C. A. Resende J. Moro S. S. Chen E. Romero‐Hernandez R. P. Silva A. V. Bilibio |
| author_facet | C. M. Denardini G. A. S. Picanço P. F. Barbosa Neto P. A. B. Nogueira C. S. Carmo L. C. A. Resende J. Moro S. S. Chen E. Romero‐Hernandez R. P. Silva A. V. Bilibio |
| author_sort | C. M. Denardini |
| collection | DOAJ |
| description | Abstract This study examines the variability of the ionospheric content during the period around the 2015 Saint Patrick magnetic storm and when equatorial plasma bubbles (EPBs) are observed during the quiet time over South America during two other events. It uses the ionospheric scales index map based on the disturbance ionospheric index (DIX). 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. The index is based on the TEC map developed at the “Brazilian Studies and Monitoring of Space Weather” (Embrace/INPE). It covers the whole South America (latitudes from 20°N to 60°S and longitudes from 90°W to 30°W) with 0.5° × 0.5° resolution cells (60 × 60 km2). Among the results, the DIX map revealed some patches of “Disturbed” and “Weakly Disturbed” ionospheric conditions during the magnetically quiet time before 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. |
| format | Article |
| id | doaj-art-9c214d332ce7418b83ad2890f824b69c |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2020-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-9c214d332ce7418b83ad2890f824b69c2025-01-14T16:30:54ZengWileySpace Weather1542-73902020-09-01189n/an/a10.1029/2019SW002330Ionospheric Scale Index Map Based on TEC Data During the Saint Patrick Magnetic Storm and EPBsC. M. Denardini0G. A. S. Picanço1P. F. Barbosa Neto2P. A. B. Nogueira3C. S. Carmo4L. C. A. Resende5J. Moro6S. S. Chen7E. Romero‐Hernandez8R. P. Silva9A. V. Bilibio10National Institute for Space Research São José dos Campos BrazilNational Institute for Space Research São José dos Campos BrazilNational Institute for Space Research São José dos Campos BrazilFederal Institute of Education, Science and Technology of Sao Paulo Jacarei BrazilNational Institute for Space Research São José dos Campos BrazilNational Institute for Space Research São José dos Campos BrazilState Key Laboratory of Space Weather, National Space Science Center Chinese Academy of Science Beijing ChinaNational Institute for Space Research São José dos Campos BrazilLANCE, Facultad de Ciencias Físico‐Matemáticas Universidad Autónoma de Nuevo León Monterrey MexicoNational Institute for Space Research São José dos Campos BrazilNational Institute for Space Research São José dos Campos BrazilAbstract This study examines the variability of the ionospheric content during the period around the 2015 Saint Patrick magnetic storm and when equatorial plasma bubbles (EPBs) are observed during the quiet time over South America during two other events. It uses the ionospheric scales index map based on the disturbance ionospheric index (DIX). 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. The index is based on the TEC map developed at the “Brazilian Studies and Monitoring of Space Weather” (Embrace/INPE). It covers the whole South America (latitudes from 20°N to 60°S and longitudes from 90°W to 30°W) with 0.5° × 0.5° resolution cells (60 × 60 km2). Among the results, the DIX map revealed some patches of “Disturbed” and “Weakly Disturbed” ionospheric conditions during the magnetically quiet time before 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.https://doi.org/10.1029/2019SW002330geomagnetic stormionosphereionospheric disturbance indexneutral atmospherespace weather |
| spellingShingle | C. M. Denardini G. A. S. Picanço P. F. Barbosa Neto P. A. B. Nogueira C. S. Carmo L. C. A. Resende J. Moro S. S. Chen E. Romero‐Hernandez R. P. Silva A. V. Bilibio Ionospheric Scale Index Map Based on TEC Data During the Saint Patrick Magnetic Storm and EPBs Space Weather geomagnetic storm ionosphere ionospheric disturbance index neutral atmosphere space weather |
| title | Ionospheric Scale Index Map Based on TEC Data During the Saint Patrick Magnetic Storm and EPBs |
| title_full | Ionospheric Scale Index Map Based on TEC Data During the Saint Patrick Magnetic Storm and EPBs |
| title_fullStr | Ionospheric Scale Index Map Based on TEC Data During the Saint Patrick Magnetic Storm and EPBs |
| title_full_unstemmed | Ionospheric Scale Index Map Based on TEC Data During the Saint Patrick Magnetic Storm and EPBs |
| title_short | Ionospheric Scale Index Map Based on TEC Data During the Saint Patrick Magnetic Storm and EPBs |
| title_sort | ionospheric scale index map based on tec data during the saint patrick magnetic storm and epbs |
| topic | geomagnetic storm ionosphere ionospheric disturbance index neutral atmosphere space weather |
| url | https://doi.org/10.1029/2019SW002330 |
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