Graphical Abstract

Wada, A., H. Tsugiti, K. Okamoto, and N. Seino, 2019: Air-sea coupled data assimilation experiment for Typhoons Kilo, Etau and the September 2015 Kanto-Tohoku Heavy Rainfall with the Advanced Microwave Scanning Radiometer 2 sea surface temperature. J. Meteor. Soc. Japan, 97, 553-575.
Special Edition on Tropical Cyclones in 2015–2016 Abstract with highlights

Plain Language Summary: This study investigated the influence of sea surface temperature (SST) on the September 2015 Kanto-Tohoku heavy rainfall event using a regional air-sea strongly coupled data assimilation system. The air-sea coupled system improved the analysis of SST, air-sea latent heat fluxes, lower-atmospheric components and the stationary linear convective system including local torrential rain occurred around 37°N in the Tochigi prefecture.