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In this paper, a system of advanced X-band Doppler weather radar with dual-linear polarization capability is described and the primary technological problem is discussed. Application of the experiment radar to observe the precipitation and intensity distribution, and the precipitation, hail, snow signature are recorded and analyzed. The test results show this system has a compact structure and good...
Typhoon cloud phase has been analyzed with MODIS remote sensing data and atmospheric soundings data. The purpose is to understand the relationship among the temperature, humidity and cloud phase on cloud top, and to find the structure evolution information ahead of precipitation.
To make full use of traffic video along the highway, to achieve low-visibility weather monitoring, a meteorological visibility detection method is proposed on the traffic video. Fog causes the disappearance of edges in the frame, which is well reflected by the change in high frequency information. In order to extract out the edge feature that reflects the changes in visibility of the image feature...
The stationary meteorology satellite data are useful for rainstorm forecasting, the cloud top temperature of FY-2C IR1 channel are used in this research. Based on the deviation analysis and projection correction, it is found that selected 5 ?? 5 pixels are enough for the accuracy of rainstorm forecasting. The exactly matches between the changes of time series of TBB and the evolution of convective...
The properties of the fog layer, such as the vertical thickness, optical thickness and the visibility, are of significant importance in the aspect of researching the fog dissipation and detection. These parameters have been successfully retrieved in this paper, mainly using MODIS data source in Yangtze River Delta, on the basis of the radiation transfer theory and reasonably simplifying the radiation...
MODIS data provides good data resources in fog detection for its abundant bands and high resolution. The heavy fogs in the Yangtze River Delta during Dec. 20th and 22th in 2007 are detected by multi-spectral threshold method. According to the differences of the radiation features of the cloud, the fog and the land in the visible, middle infrared and far infrared bands, the multi-spectral method is...
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