The Pre-Landfall Atmospheric Environment of a Typhoon Observed By the Himawari-8 AHI

The Advanced Baseline Imager (ABI) will be aboard the next generation of GOES (GOES-R) with finer temporal and spatial resolutions, and more spectral channels than the current GOES Imager. A new era will be introduced for the geostationary satellite remote sensing. Due to the lack of geostationary infrared (IR) sounders, the GOES-R ABI LAP algorithm has been developed under the GOES-R Algorithm Working Group (AWG) at CIMSS to retrieve the Legacy Atmospheric Profile (LAP) using the ABI radiance measurements.

Recently, the Advanced Himawari Imager (AHI) on Himawari-8 started to observe the earth operationally, and the GOES-R ABI LAP algorithm could be applied to the AHI measurements due to its similar features (spectral, spatial and temporal) as ABI in infrared bands. The capability of the AHI measurements over full disk with 10 minute frequency enabled us to observe the atmospheric temporal variation in the pre-landfall environment of typhoon Nangka (2015). In this study, the derived products will be discussed to depict the detailed temporal features of the pre-landfall environment of a typhoon in addition to the GOES-R LAP algorithm application to AHI measurements on Himawari-8.