一、前言地物波谱的测量研究工作是遥感技术的一项基础研究工作,该项工作在国外颇受重视,而且进行了大量的研究工作。但国内目前开展甚少,尤其对海岸带地物反射光谱的研究工作更是罕见。如所周知,自然界的物体由于物质性质及表面情况的不同,它们反射、吸收、透射电磁辐射的能力是不相同的,并且,同一物体对于不同波长的电磁波的响应特性也是不相同的。即,各种物体均有自己独特的波谱辐射特性。遥感就是根据电磁辐射与物质相互作用理论,应用先进的光学,电子技术来探测地球表面层物质所辐射或反射的电磁波以获取地物信息。因 I. Preface The survey of geomagnetic spectrum is a basic research work on remote sensing technology. This work has received much attention in foreign countries and a great deal of research work has been done. However, few studies have been carried out in China at present, especially on the reflectance spectra of coastal areas. As we all know, the nature of the object because of the nature of the material and the different surface conditions, their ability to reflect, absorb, transmit electromagnetic radiation is not the same, and the same object for different wavelengths of electromagnetic wave response characteristics are not the same. That is, all kinds of objects have their own unique spectral radiation characteristics. Remote sensing is based on the theory of electromagnetic radiation and material interaction, the application of advanced optical, electronic technology to detect the surface layer of the Earth’s radiation or reflected electromagnetic waves to obtain the ground object information. because