@article{oai:niigata-u.repo.nii.ac.jp:00028136, author = {佐藤, 修 and 青木, 滋 and 吉田, 昭治 and 仲川, 隆夫 and 鈴木, 幸治}, journal = {新潟大学積雪地域災害研究センター研究年報, 新潟大学積雪地域災害研究センター研究年報}, month = {Dec}, note = {Most landslides have occurred during the snow-melting and heavy rainfall seasons in Niigata Prefecture. It is considered that their occurrences are closely related to the percolation of snow-melting and rain waters, however the knowledge about the groundwater conditions during these seasons is lacking because the measurements are fairly difficult without any automatic observation systems. We have developed the following four type of observation systems to determine the groundwater level and water quality automatically. 1) The system for measurements of water level, electric conductivity and temperature of groundwater with analog data recorder. This system was installed at the Nigorisawa landslide, in Nagaoka City. 2) The system for measurements of the above items with digital data recorder using a personal computer (EPSON HC-20). This was installed at the Mushigame landslide, in Yamakoshi Village near Nagaoka City. 3) The system for measurements of not only the above items but also snow depth, volume of snow-melting water and atmospheric temperature with the same type data recorder and transmission of data to Niigata University by a wire system. This system works at the Higashi-Mushigame landside adjoining the above landslide areas. 4) The system for measurements of water level, electric conductivity and temperature of groundwater with digital data recorder and transmission of data by wireless system. This system was installed at the Koshi landslide in Matsunoyama Town. On the basis of the observations during several seasons, the merits, demerits and accuracy of each system are also discussed.}, pages = {115--124}, title = {地すべり地地下水の自動観測システムの開発}, volume = {9}, year = {1987} }