The mesocyclone over the northern part of the Japan/East sea in February 2013

Abstract

The case of the influence of the mesoscale cyclone (MC) on the northern part of the Japan/East Sea in 1011 February 2013 was investigated. The passage of the MC was accompanied by a sharp increase in the wind to storm values, a reduction in the total heat transfer by almost two times, an increase of the momentum flux by four times. The perturbations of the hydrological characteristics in the MC trace, estimated from the data of two Argo buoys, were traced to a depth of 300 meters off the west coast of Hokkaido island and up to ~100 m in the deep-water area, which is due to the difference in the background stability of vertical structures. Some estimates of the contribution of various factors to the observed variability of the upper sea layer are given.