Study On The Relevance Of Snow Covere And Meteorological Factors Of Xinjiang Based On Remote Sensing Methods

Snow melt water is a important part of the earth water resources, many of the world's irrigated agriculture rely on the spring snow melt water, Snow melt water directly affects the early stages of crop growth, Thereby affecting crop yield. At the same time, it is confirmed A wide range of snow has been widely effects on climate, such as the snow on the Qinghai-Tibet Plateau affect climate of the northern hemisphere, and the poles of the corresponding climate change is for all to see.Xinjiang Located in inland arid areas and far Away from the ocean, the formation of rainfall reserved by seasonal constraints. With the use of water resources has further aggravated the problem, Snow melt water on people's production and living a more significant meaning, climate change, combined with abnormal Snow cover has changed In recent years, Lead to the rational utilization of water resources effectively based on the lack of distribution to study of snow cover change in Xinjiang with theoretical and practical significance.This paper start from the extraction method of information on the snow, Introduced evolution about the method of information extraction snow, Compare and analysis of the several extraction methods. indicated the use of remote sensing data extraction of information have many advantage of snow .Means that the use of remote sensing information extraction snow is the development of information extraction technology trends.The main contents of the paper lies in how the reflectance properties of snow effectively extract the snow cover, compare the applicability of several extraction methods. According to the resolution, the bands characteristic of the scope of MODIS data, Special choice of MODIS snow cover data as extraction of remote sensing data, The use of remote sensing of snow-covered software to extract information and combination of geographic information system software for the spatial distribution analysis of snow cover characteristics for later this year for snow covered and the characteristics of interannual variability as well as meteorological factors and the relevance of changes in data analysis. Snow cover for the introduction of the vertical changes in the concept of the snow line and the establish DEM model, illustrate the Changes from high to the scope of changes in snow cover characteristics ;Then the use of SPSS statistical software on the snow cover and temperature, precipitation, pressure, relative humidity for a first-year unit for time trend analysis, and fitting to the equation explore the changes in the characteristics of the trend , then the snow is on the cover with various meteorological factors to analyze the relevance of Discussion of the snow cover and meteorological factors influence each other.