A levelling network of high order of accuracy extended over large areas, known as geodetic levelling, is required to furnish accurate vertical control for all surveying and mapping operations. The highest precision leveling network is neede for the irrigation and water-works project due to the fact that irrigation and drainage systems have to be planned carefully on relatively flat area.
The Volcanic risk was assess through analysis of physical and socio-cultural of community who lives in the volcanic body. One of the study area in the MIA-VITA project is Merapi Volcano. The research in Merapi volcano is proposed to build an atlas through mapping the vulnerable community during pre-eruption and post eruption. Geographic information systems was applied to build geodatabase which…