The legend of the kamikaze typhoons

The legend of the kamikaze typhoons
Figure 1. A: Map of the western North Pacific showing study area with locations of Lake Daija (circle), Kamikoshiki (triangle), and site of Mongol wreckage in Imari Bay (square), Japan. Paths of best track category 3 and greater typhoons passing within 90 km of Lake Daija (solid lines) and the most intense best track typhoon to impact Imari Bay (a weak category 2 typhoon in 1985 CE, dashed line) are noted. Path of the 1281 CE typhoon (dot-dash) is based on Turnbull (2010), and has been extended south of Imari Bay with a trajectory similar to that of the 1985 CE typhoon. B: Satellite image of Lake Daija with superimposed bathymetry and core locations (circles). Star indicates location where photo in C was taken. C: Photo of Lake Daija with position of cores. Core positions in sequential order from 1 to 4 are 32.2475°N, 129.98601°E; 32.2472 °N, 129.98576°E; 32.24699°N, 129.98557°E; and 32.24792°N, 129.98666°E. Credit: Woodruff et al. and Geology

In the late 13th century, Kublai Khan, ruler of the Mongol Empire, launched one of the world's largest armada of its time in an attempt to conquer Japan. Early narratives describe the decimation and dispersal of these fleets by the "Kamikaze" of CE 1274 and CE 1281—a pair of intense typhoons divinely sent to protect Japan from invasion.

These historical accounts are prone to exaggeration, and significant questions remain regarding the occurrence and true intensity of these legendary . For independent insight, we provide a new 2,000 year sedimentary reconstruction of typhoon overwash from a coastal lake near the location of the Mongol invasions. Two prominent storm deposits date to the timing of the Kamikaze typhoons and support them being of significant intensity.

Our new storm reconstruction also indicates that events of this nature were more frequent in the region during the timing of the Mongol invasions. Results support the paired Kamikaze typhoons in having played an important role in preventing the early conquest of Japan by Mongol fleets. In doing so, the events may provide one of the earliest historical cases for the shaping of a major geopolitical boundary by an increased probability of extreme weather due to changing atmospheric and oceanic conditions.


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Mongolian 'kamikaze' wreck found off Japan coast

More information: Depositional evidence for the Kamikaze typhoons and links to changes in typhoon climatology J.D. Woodruff et al., Dept. of Geosciences, University of Massachusetts, Amherst, Massachusetts 01003, USA. Published online ahead of print on 4 Dec. 2014; http://dx.doi.org/10.1130/G36209.1.
Citation: The legend of the kamikaze typhoons (2014, December 9) retrieved 19 January 2021 from https://phys.org/news/2014-12-legend-kamikaze-typhoons.html
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