Sand-dust Storm Monitoring And Analysis Of Changchun Region

In recent years, large-scale dust storms occurred in north China, it bring some question of transport and environment and people's daily lives and work,and the negative impact of dust storms problem has become the focus of attention of the community. So the sandstorm monitoring studies appears to be particularly important. In this paper, the digital equipment will be applied to dust in the sky from time to time, and combined with satellite remote sensing processing software ENVI4.5 (The Environment for Visualizing Images) to the monitored data RGB color mode of analysis, it can determine and analyze the strength of the weather and dust storms sunny, cloudy conditions in the monitored picture data,and a continuous 1 to 2 days of strong dust storms can be clearly identified, mild weather and cloud of dust weather more difficult to distinguish. Also I used the ground PM10 (incapable particles) and TSP, the visibility of the monitoring data in transit that the height of the dust and ground dust aerosols carried out comparative analysis of the relevance of a certain conclusion. The method is simple, low cost, just the introduction of China's sandstorm monitoring technology in Japan. High-altitude remote sensing image analysis consistent with ground monitoring.The application of satellite remote sensing and ground-based observations study the dust in Changchun and the relevant characteristics of aerosol transmission path, it shows that Changchun is important transit area of the dust, sandstorms, dust sources and is off-site dust. Inner Mongolia dusts affect the South Korea and Japan, and even affect to the United States West Coast Region when it transit to east. The author had analyzed dust data from 2003 to 2009, the last he concluded that the strength in transit and transport laws. I have accumulated valuable meteorological data. The results show that Cancun is Asia's central region the transit area of its surface-based monitoring dust storms help to analyze the aerosol density and its migration and transformation rules. The results have occurred from the frequency of dust weather tends to increase, but the intensity tends to wane. It shows a clear trend of transit passage due to dust weather in transit completed within 2-3 hours, so the occurrence of sandstorms is often in the spring.