2026-10-12T11:10:16Z https://www.scidb.cn/oai

10.57760/sciencedb.00zlp 2026-08-21T17:16:44Z

2026-08-21 A matched dataset of multisatellite TEC variability and observation opportunities at Hainan doi:10.57760/sciencedb.00zlp en This dataset provides operational multisatellite GNSS total electron content (TEC) variability events observed at Danzhou, Hainan, during 2015–2020, together with one conditionally similar non-event for each event, common ±180-min sequences, and every valid five-minute detection opportunity. Simultaneous variability on several satellite–receiver paths is less dependent on any single path than a one-satellite anomaly. The matched non-events and observation-opportunity denominator support event studies, observation-adjusted statistics and leakage-aware machine learning. The release contains 5,342 operational events, 5,342 matched non-events and 476,645 valid observation centres. Labels are reproducible operational candidates rather than confirmed physical mechanisms. GNSS; total electron content (TEC); ionosphere Zheng Wang Pengdong Gao PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank