星载数字图象——即陆地卫星(Land sat)多波段(MSS)影象是当代遥感技术取得的最新成就之一。它是地壳表层物质反射、发射、吸收、透射电磁波谱的真实记录。这一现代技术已逐渐进入地学研究领域,组成了新的学科——遥感地质学。它已成为地学研究定量化、自动化、现代化的重要手段之一。星载数字图象提供的信息十分丰富。它不仅是地表地物信息的反映,而且包含着地下深 On-board digital imagery - Landsat multiband (MSS) imaging - is one of the latest achievements of contemporary remote sensing. It is a real record of the reflection, emission, absorption and transmission of electromagnetic spectrum of the crustal surface material. This modern technology has gradually entered the field of geosciences, formed a new discipline - remote sensing geology. It has become one of the most important means for the study of geosciences quantitative, automatic and modern. Onboard digital images provide very rich information. It is not only a reflection of surface information, but also underground depth