Monitoring tropical cyclone evolution with FY-3C and NOAA satellites microwave observations

FY-3 and NOAA satellite microwave soundings, which penetrate high clouds, delineate the development and dissipation of the upper tropospheric warm core associated with a tropical cyclones. And as a new comer in China´s FY-3series, FY-3C microwave sounding has the innovation channel settings, so the storm´s vertical thermal structure may be detected from these microwave imagery. The emphasis of this study is on presenting a technique integrated using the FY-3C and NOAA satellite microwave sounding data. Not only vertical cross sections reveal the intensification of the upper tropospheric warm core as the storm develops, and the downward propagation of the warm core as the storm dissipates. But also the environmental flow such as the cold air and water vapor evolution through the tropical cyclone whole life, and the invading cold air influence the upper warm core and the vertical structure. This work should be considered as an initial step toward a detailed understanding of the effect of inner-core asymmetries on TC intensity.