Analysis On The Characteristics Of The Radiation And The Features Of Dust Aerosols In Spring And Summer Of 2007 In The Hinterland Of The Taklimakan Desert

In this thesis,According to the data of Meteorological Station ground meteorological observation data in the Taklimakan Desert and the atmospheric environment monitoring surface energy budget in the radiation detection system to monitor part of the radiation data,as well as the magnitude of dust aerosol concentration Data in April and in August 2007,We analyzed the Taklimakan Desert-band features of the solar radiation changes and different weather characteristics of Radiation Budget,focusing on data of ground-based observations,We analyzed the characteristics of the Distribution of aerosols and Radiation Budget in different weather conditions. Futher more,study to the acquisition of the sandstorm weather surface gradient samples for different characteristics of particle size.The main conclusions as below:1. Weather AnalysisBy ground meteorological observation data analysis,in April 2007 the majority of sand and dust weather,dust weather in August less abundant water vapor,clouds change is more complicated. With wind speed,temperature,relative humidity and air pressure changes in trends can be analyzed typical weather for April 15 and August 19 for the sunny,April 7 and August 7 to cloudy,April 4 and 8 From 22 to dust weather,on April 22 and August 12 for the dust storms. To analyze the results for the balance of payments characteristics of radiation and aerosol concentration to provide weather and climate characteristics of the background.2. Radiation Budget characteristics of the typical weatherFour typical weather in April and August 2007,with sunny weather for the background value of different weather conditions radiation balance of payments changes. The results showed that in the cloudy day,dust,sand and dust weather short-wave radiation flux decreases,long-wave radiation flux increased,the net decrease radiation flux. Strength in different weather interference,radiation flux change to different degrees.3. Aerosol concentration characteristics of the dustApril 2007 the highest concentration of PM10 value of 4.227mg/m3,appear in the April 22 weather for the sandstorm. August 2007 TSP the highest concentration of 19.59 mg/m3,appear in the August 22 for dust and Yangsha. PM10 concentration of radiation fluxes have an impact.4. Gradient particle size characteristics of the dust samplesApril 22,2007 Sandstorm collected samples of dust,sand and dust high-level performance for the same location lower than the average size of small dust samples,selected at peak concentrated,is biased,a point below the sand ridge of sand and dust samples Sand Ridge show the same tendency .