Digital elevation modeling based on multimodal aerospace data in the context of sustainable development of Romania

摘要

With the development of computer systems and geographic information systems the digital elevation models have started to be used more and more in spatial analysis processes. The digital models, even if they refer to the terrain or to the surface, have an important role in ecosystems analysis projects, regional or national urban planning, sustainable resource management and natural disaster prevention. When we talk about digital elevation modeling in the context of sustainable development, we refer primarily to the applicability of the three-dimensional description of the space around us. An important aspect of DEM in terms of sustainable development is the way that it is obtained, so that the resources consumption for its generation to be minimal and the applicability for large scale. This paper presents the major domains of DEM applicability in the context of sustainable development, and also aspects regarding an efficient way of generating DEMs.