The change of the oceanic surface environment in the East China Sea observed by the wave glider and satellite

Abstract

The Changjiang river water in summer disperses toward Jeju Island and then into the East/Japan Sea due to dominant southerly wind. The Changjiang freshwater contributes to the upper ocean variability in the East China Sea (ECS) and Yellow Sea (YS). Continuous observation under the extreme condition(e.g. storm, typhoon) give 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 (Wave Glider) measured continuous observation with various onboard atmosphere and ocean sensors and control the location and data remotely and in real time with satellite communication.To trace offshore high-temperature and low-salinity waters in the ECS, a proxy was developed using the wave glider and satellite date during summer 2016 and 2017. The wave glider (wave-propelled autonomous vehicle) was launched from the south of Jeju Island. A comparison of ocean color and wave glider-measured data can apply the various ocean environmental monitoring such as 1) low-salinity water monitoring, 2) sea surface warming monitoring, 3) developing algorithm for low-salinity water detection, 4) detection for plankton migration, 5) severe weather condition etc.ea (YS). Continuous observation under the extreme condition(e.g. storm, typhoon) give 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 (Wave Glider) measured continuous observation with various onboard atmosphere and ocean sensors and control the location and data remotely and in real time with satellite communication.To trace offshore high-temperature and low-salinity waters in the ECS, a proxy was developed using the wave glider and satellite date during summer 2016 and 2017. The wave glider (wave-propelled autonomous vehicle) was launched from the south of Jeju Island. A comparison of ocean color and wave glider-measured data can apply the various ocean environmental monitoring such as 1) low-salinity water monitoring, 2) sea surface warming monitoring, 3) developing algorithm for low-salinity water detection, 4) detection for plankton migration, 5) severe weather condition etc.