Assimilating All-Sky Himawari-8 Satellite Infrared Radiances: A Case of Typhoon Soudelor (2015)
Assimilating All-Sky Himawari-8 Satellite Infrared Radiances: A Case of Typhoon Soudelor (2015)
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DOI：
10.1175/mwr-d-16-0357.1
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发表时间：
2018-01
影响因子：
3.2
通讯作者：
T. Honda;T. Miyoshi;G. Lien;S. Nishizawa;Ryuji Yoshida;S. Adachi;K. Terasaki;K. Okamoto;H. Tomita
中科院分区：
文献类型：
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作者：
T. Honda;T. Miyoshi;G. Lien;S. Nishizawa;Ryuji Yoshida;S. Adachi;K. Terasaki;K. Okamoto;H. Tomita
日本新的地球静止卫星Himawa-8是包括GOES-16在内的第三代地球静止气象卫星系列中的第一颗，自2015年7月开始运行。Himawa-8对满盘每10分钟产生16个频段的高分辨率观测，对局部地区每2.5分钟产生一次高分辨率观测。本研究的目的是利用区域数值天气预报模式同化喜马威-8每10分钟的全天红外辐射，并首次研究其对实际热带气旋(TC)分析和预报的影响。结果表明，Himawa-8红外辐射的同化改善了分析的内核区和外雨带区的TC结构。由于改进的TC结构分析，由于Himawa-8资料的改进，TC强度预报也得到了改进。
AbstractJapan’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.