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气象卫星TIROS/N上装有AVHRR甚高分辨率扫描仪,能接收5个通道的光谱数据,其范围为0.58—12.5微米。这些资料在气象、林业、农业生产上有着广泛的用途。在监测我省冬小麦长势和土壤墒情中,发现该数据与土壤表层(0—5公分)含水量存在一定的相关因素,经过某些方法的处理,对监测我省旱情发挥了一定作用。该试验选用4,2,1三个波段,为了突出所需的信息,采用了主因子分析法,所用设备是自己研制的微机图像处理系统。经效果分析,在大范围土壤表层墒情的监测中,方
The meteorological satellite TIROS / N is equipped with an AVHRR very high resolution scanner that can receive spectral data from 5 channels in the 0.58-12.5 micron range. These materials have a wide range of uses in meteorology, forestry and agricultural production. In monitoring the winter wheat growth and soil moisture in our province, we found that there is a certain correlation between the data and water content of soil surface (0-5 cm). After some methods of treatment, it has played a certain role in monitoring drought in our province. The test uses 4,2,1 three bands, in order to highlight the required information, using the principal factor analysis, the equipment used is its own computer image processing system. After the effect analysis, in a large area of soil moisture monitoring, Fang