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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Data Assimilation of Himawari-8 Aerosol Observations: Asian Dust Forecast in June 2015
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Data Assimilation of Himawari-8 Aerosol Observations: Asian Dust Forecast in June 2015

机译：Himawari-8气溶胶观测的数据同化：2015年6月亚洲沙尘预报

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References(28) Cited-By(1) Himawari-8 is a Japanese geostationary weather satellite that was launched in October 2014 and has been in operation since July 2015. Himawari-8 is equipped with an outstanding high-performance imager that has 16 spectral channels (3 for visible, 3 for near-infrared and 10 for infrared wavelengths) with a 10-minute observation interval. We retrieved aerosol optical thickness (AOT) from visible and near-infrared multispectral observations of Himawari-8 and assimilated the AOT data into a global aerosol forecast model with an ensemble Kalman filter system. The data assimilation result was validated by comparison with conventional products derived from polar-orbiting satellite aerosol observations (i.e., Moderate Resolution Imaging Spectroradiometer (MODIS) AOT) of an Asian dust storm in June 2015. The Himawari-8 AOT data assimilation successfully produced an analysis and forecast of the Asian dust that was comparable or superior to those of the MODIS AOT data assimilation. The Himawari-8 aerosol product has a much higher temporal coverage than that of polar-orbiting satellites, which is promising for aerosol data assimilation. This study is a first step in the application of geostationary satellites for aerosol research.
机译：参考文献（28）被引（1）Himawari-8是日本对地静止气象卫星，于2014年10月发射，自2015年7月开始运行。Himawari-8配备了出色的高性能成像仪，具有16个光谱通道（3个用于可见光，3个用于近红外光，10个用于红外波长），观察间隔为10分钟。我们从Himawari-8的可见和近红外多光谱观测值中检索了气溶胶光学厚度（AOT），并将AOT数据同化为具有集成卡尔曼滤波系统的全球气溶胶预测模型。通过与2015年6月亚洲沙尘暴的极轨卫星气溶胶观测（即中分辨率成像光谱辐射仪（MODIS）AOT）衍生的常规产品进行比较，验证了数据同化结果。Himawari-8 AOT数据同化成功产生了对亚洲尘埃的分析和预测，其可比或优于MODIS AOT数据同化。 Himawari-8气溶胶产品的时间覆盖范围比极地轨道卫星的时间覆盖范围高得多，这对气溶胶数据同化很有希望。这项研究是将地球同步卫星应用于气溶胶研究的第一步。

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