Meteorological Tsunami of 19 March 2017 in the Persian Gulf: Observations and Analyses

摘要

On 19 March 2017, destructive tsunami-like waves impacted the northeast shore of the Persian Gulf (PG). The maximum surveyed runup of about 3 m was observed at Dayyer in southern Iran, where damaging waves inundated the land for a distance of?~?1?km and resulted in the deaths of five people. Because the PG has always been considered safe from extreme oceanic waves, the event was totally unexpected. In this study, we examined sea level data from 12 stations across the PG and a variety of meteorological information, including satellite imagery, high-altitude isohypse maps and high-resolution air pressure records from 47 instruments along the PG. Our results show that the event was very local, with recorded maximum trough-to-crest wave heights of 197?cm at Dayyer and 234?cm at Asaluyeh, near-field cities in Iran located?~?80?km apart. The dominant wave periods were in the range of 15–20?min. At all distant tide gauges, the observed wave heights were?