{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,13]],"date-time":"2026-01-13T21:32:38Z","timestamp":1768339958879,"version":"3.49.0"},"reference-count":91,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2023,10,13]],"date-time":"2023-10-13T00:00:00Z","timestamp":1697155200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001843","name":"Science Engineering Research Board (SERB)","doi-asserted-by":"publisher","award":["CRG\/2019\/003394"],"award-info":[{"award-number":["CRG\/2019\/003394"]}],"id":[{"id":"10.13039\/501100001843","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001843","name":"Science Engineering Research Board (SERB)","doi-asserted-by":"publisher","award":["FF67"],"award-info":[{"award-number":["FF67"]}],"id":[{"id":"10.13039\/501100001843","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001843","name":"Science Engineering Research Board (SERB)","doi-asserted-by":"publisher","award":["RSPD2023R999"],"award-info":[{"award-number":["RSPD2023R999"]}],"id":[{"id":"10.13039\/501100001843","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Thailand Science Research and Innovation Fund","award":["CRG\/2019\/003394"],"award-info":[{"award-number":["CRG\/2019\/003394"]}]},{"name":"Thailand Science Research and Innovation Fund","award":["FF67"],"award-info":[{"award-number":["FF67"]}]},{"name":"Thailand Science Research and Innovation Fund","award":["RSPD2023R999"],"award-info":[{"award-number":["RSPD2023R999"]}]},{"name":"King Saud University, Riyadh, Saudi Arabia","award":["CRG\/2019\/003394"],"award-info":[{"award-number":["CRG\/2019\/003394"]}]},{"name":"King Saud University, Riyadh, Saudi Arabia","award":["FF67"],"award-info":[{"award-number":["FF67"]}]},{"name":"King Saud University, Riyadh, Saudi Arabia","award":["RSPD2023R999"],"award-info":[{"award-number":["RSPD2023R999"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The equatorial plasma bubbles (EPBs) are depleted plasma density regions in the ionosphere occurring during the post-sunset hours, associated with the signal fading and scintillation signatures in the trans-ionospheric radio signals. Severe scintillations may critically affect the performance of dynamic systems relying on global navigation satellite system (GNSS)-based services. Furthermore, the occurrence of scintillations in the equatorial and low latitudes can be triggered or inhibited during space weather events. In the present study, the possible presence of the EPBs during the geomagnetic storm periods under the 25th solar cycle is investigated using the GNSS-derived total electron content (TEC) depletion characteristics at a low-latitude equatorial ionization anomaly location, i.e., KL University, Guntur (Geographic 16\u00b026\u2032N, 80\u00b037\u2032E and dip 22\u00b032\u2032) in India. The detrended TEC with a specific window size is used to capture the characteristic depletion signatures, indicating the possible presence of the EPBs. Moreover, the TEC depletions, amplitude (S4) and phase scintillation (\u03c3\u03c6) indices from multi-constellation GNSS signals are probed to verify the vulnerability of the signals towards the scintillation effects over the region. Observations confirm that all GNSS constellations witness TEC depletions between 15:00 UT and 18:00 UT, which is in good agreement with the recorded scintillation indices. We report characteristic depletion depths (22 to 45 TECU) and depletion times (28 to 48 min) across different constellations confirming the triggering of EPBs during the geomagnetic storm event on 23 April 2023. Unlikely, but the other storm events evidently inhibited TEC depletion, confirming suppressed EPBs. The results suggest that TEC depletions from the traditional geodetic GNSS stations could be used to substantiate the EPB characteristics for developing regional as well as global scintillation mitigation strategies.<\/jats:p>","DOI":"10.3390\/rs15204944","type":"journal-article","created":{"date-parts":[[2023,10,13]],"date-time":"2023-10-13T10:04:39Z","timestamp":1697191479000},"page":"4944","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Trailing Equatorial Plasma Bubble Occurrences at a Low-Latitude Location through Multi-GNSS Slant TEC Depletions during the Strong Geomagnetic Storms in the Ascending Phase of the 25th Solar Cycle"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0495-4509","authenticated-orcid":false,"given":"Ram Kumar","family":"Vankadara","sequence":"first","affiliation":[{"name":"Department of ECE, KL Deemed to be University, Koneru Lakshmaiah Education Foundation, Guntur 522302, India"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1259-1883","authenticated-orcid":false,"given":"Punyawi","family":"Jamjareegulgarn","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Faculty of Engineering, King Mongkut\u2019s Institute of Technology Ladkrabang, Prince of Chumphon Campus, Chumphon 86160, Thailand"}]},{"given":"Gopi Krishna","family":"Seemala","sequence":"additional","affiliation":[{"name":"Indian Institute of Geomagnetism, Navi Mumbai 410218, India"}]},{"given":"Md Irfanul Haque","family":"Siddiqui","sequence":"additional","affiliation":[{"name":"Mechanical Engineering Department, College of Engineering, King Saud University, Riyadh 11451, Saudi Arabia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5655-3585","authenticated-orcid":false,"given":"Sampad Kumar","family":"Panda","sequence":"additional","affiliation":[{"name":"Department of ECE, KL Deemed to be University, Koneru Lakshmaiah Education Foundation, Guntur 522302, India"}]}],"member":"1968","published-online":{"date-parts":[[2023,10,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"163","DOI":"10.5194\/angeo-24-163-2006","article-title":"A Global Climatology for Equatorial Plasma Bubbles in the Topside Ionosphere","volume":"24","author":"Gentile","year":"2006","journal-title":"Ann. 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