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引言地貌图是区域地貌考察研究成果的综合反映,大量的野外地貌考察是地貌制图工作的基础。通常,小比例尺的地貌图是根据地貌调查所获得的资料(图件、考察报告、统计资料等)编绘而成的。用这种传统的方法制图,野外考察和室内制图的工作量都很大,花费时间也很多,而且成图的质量往往不够理想。利用航空象片进行地貌判读与制图,虽然提高了制图的质量和速度,但由于航空象片复盖地面的范围小,重复摄影的周期长,成本也高,利用大比例尺航空象片进行中、小比例尺地貌制图还有一定的局限性。
Introduction The geomorphology map is a comprehensive reflection of the research results of the regional geomorphological investigation. A large number of field investigations are the basis of the geomorphologic mapping. In general, small-scale topographic maps are compiled from data obtained from geomorphological surveys (maps, inspection reports, statistics, etc.). With this traditional method of mapping, field trips and in-house drafting, there is a lot of work and time involved, and the quality of mapping is often not ideal. The use of aerial photographs for landscape interpretation and mapping has improved the quality and speed of cartography. However, since aerial images cover a small area of the ground and the period of repetitive photography is long and the cost is high, the use of large-scale aerial photographs, Small-scale landscape mapping there are some limitations.