Monitoring the change of the ocean environment under typhoon effect using a wave glider and satellite data

Abstract

Time-series observation under the extreme condition (e.g. storm, typhoon etc) gives the chance the understanding the process of air-ocean interaction. Recently, from the new technology, we can measure the extreme sea conditions far from the coast. The unmanned surface vehicle, a wave glider, is a hybrid vehicle that consists of a surface float and a submerged glider tethered to it by an umbilical cable. It measured continuous observation with various onboard atmosphere and ocean sensors and control the location and data remotely and in real time with satellite communication. During 2017 summer, the wave glider launched and operated in the south of Jeju, Korea. The Typhoon Talim (Sep. 9 &#8211 Sep. 18, 2017) passed through the East China Sea in the same time. We used the wave glider to monitor the effect of the Typhoon Talim (Sep. 9 &#8211 Sep. 18, 2017), which have 940hPa and max. wind speed 47m/s. It started to grow as it headed northwest and developed into a typhoon as it changed the track with northeast (Sep. 15, 2017). According to the best track data provided by ECMWF, we started the deployment of the wave glider into the track of typhoon. The wave glider made its closest approach to Typhoon at around Sep. 16-17, 2017. The atmosphere pressure dropped into 995hPa, wind speed was up to 25 m/s, and significant wave height was 9.1 m. Satellite images showed two hot spots in the East China Sea. One is upwelling eve coast. The unmanned surface vehicle, a wave glider, is a hybrid vehicle that consists of a surface float and a submerged glider tethered to it by an umbilical cable. It measured continuous observation with various onboard atmosphere and ocean sensors and control the location and data remotely and in real time with satellite communication. During 2017 summer, the wave glider launched and operated in the south of Jeju, Korea. The Typhoon Talim (Sep. 9 &#8211 Sep. 18, 2017) passed through the East China Sea in the same time. We used the wave glider to monitor the effect of the Typhoon Talim (Sep. 9 &#8211 Sep. 18, 2017), which have 940hPa and max. wind speed 47m/s. It started to grow as it headed northwest and developed into a typhoon as it changed the track with northeast (Sep. 15, 2017). According to the best track data provided by ECMWF, we started the deployment of the wave glider into the track of typhoon. The wave glider made its closest approach to Typhoon at around Sep. 16-17, 2017. The atmosphere pressure dropped into 995hPa, wind speed was up to 25 m/s, and significant wave height was 9.1 m. Satellite images showed two hot spots in the East China Sea. One is upwelling eve