论文部分内容阅读
一、前言 日本静止气象卫星GMS的数字图象资料在观察天气系统、监测台风、气象预报服务及海洋环境预报服务方面,是很有价值的数据资料。改型的GMS展宽数字云图（S-VISSR）,又为定量的分析数字云图资料提供了条件。但对用户而言,某个区域或为某个专项选用的数据尤其重要,而具有高效率,又能保证一定精度的卫星图象数据定位算法更加重要。我们在对GMS数字图象做定位时,采用了日本气象卫星中心的简单定位算法。经计算证明,此种算法既满足对数据精度的要求,又简化了定位的复杂计算,具有一定的实用性。
I. INTRODUCTION The digital image data of the Japanese stationary weather satellite GMS is valuable data for observing the weather system, monitoring typhoon, weather forecast services and marine environment forecast services. The modified GMS stretched-out digital cloud image (S-VISSR) provides the basis for a quantitative analysis of digital cloud data. However, it is particularly important for the user to select data for a particular area or a certain area. However, the satellite image data positioning algorithm with high efficiency and certain accuracy is even more important. We used the simple positioning algorithm of the Japan Meteorological Satellite Center in positioning the GMS digital images. The calculation shows that this algorithm not only meets the requirements of data accuracy, but also simplifies the complex calculation of positioning, which has a certain practicality.