Luyao Qin's research while affiliated with National University of Defense Technology and other places
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Publications (4)
As the first hyperspectral infrared sounder onboard a geostationary satellite, FengYun 4A (FY-4A) Geostationary Interferometric Infrared Sounder (GIIRS) plays an important role in high-impact weather forecasting with a high spatial and temporal resolution. Because hyperspectral infrared data are highly sensitive to clouds and these cloud-affected d...
Precipitation detection is an essential step in radiance assimilation because the uncertainties in precipitation would affect the radiative transfer calculation and observation errors. The traditional precipitation detection method for microwave only detects clouds and precipitation horizontally without considering the three-dimensional distributio...
Accurate and long leading time flood forecasting is very important for flood disaster mitigation. It is an effective method to couple the Quantitative Precipitation Forecast (QPF) products provided by Numerical Weather Prediction (NWP) models to a distributed hydrological model with the goal of extending the leading time for flood forecasting. Howe...
Citations
... Three papers concerned data assimilation and ensemble forecasting. Qin et al. (2023a) studied the effects of assimilating the Fengyun (FY)-3D microwave temperature sounder-2 (MWTS-II) radiance with 3D precipitation detection, which was found to reduce the TC track forecast biases by 4.53% for two typhoon cases. This study preliminarily proved that 3D precipitation detection offers potential added value to increase satellite data utilization. ...
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... The high-resolution cloud productions provided by imagers may help solve this problem. The Dynamic Channel Selection method developed by Qin et al. considers the effect of cloud top height by the lookup table, using the cloud mask and cloud top pressure provided by the imager to select the cloud-free microwave sounding channels for assimilation [49]. A similar approach can be applied to IR. Extending the clear FOVs method to 3D space with the help of an imager to select clear channels will retain more cloud-free GIIRS data, and utilize the GIIRS data more effectively. ...
