Assimilating All-Sky Himawari-8 Satellite Infrared Radiances: A Case of Typhoon Soudelor (2015)

2018/01/01 by Takumi Honda, Takemasa Miyoshi, Guo‐Yuan Lien +8 · 1 citation
Earth and Planetary Sciences · Environmental Science · #Meteorological Phenomena and Simulations #Tropical and Extratropical Cyclones Research #Climate variability and models

paper · pdf · doi:10.1175/mwr-d-16-0357.1

Abstract

Abstract Japan’s new geostationary satellite Himawari-8, the first of a series of the third-generation geostationary meteorological satellites including GOES-16, has been operational since July 2015. Himawari-8 produces high-resolution observations with 16 frequency bands every 10 min for full disk, and every 2.5 min for local regions. This study aims to assimilate all-sky every-10-min infrared (IR) radiances from Himawari-8 with a regional numerical weather prediction model and to investigate its impact on real-world tropical cyclone (TC) analyses and forecasts for the first time. The results show that the assimilation of Himawari-8 IR radiances improves the analyzed TC structure in both inner-core and outer-rainband regions. The TC intensity forecasts are also improved due to Himawari-8 data because of the improved TC structure analysis.

Citations

• Is Tropical Cyclone Intensity Guidance Improving?

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