@article{oai:fukuyama-u.repo.nii.ac.jp:00007613,
 author = {清水, 光 and 有本, 卓},
 journal = {福山大学工学部紀要},
 month = {},
 note = {P(論文), This paper studies the process of hydrologic cycle in the basin of Lake Biwa, especially in the winter season, from the system-theoretic point of view, The four-tank model is used for modeling the hydrologic process from precipitation to runoff in the basin. Then it is possible to represent the hydrologic process as a discrete-time dynamical system, which consists of a pair of state equation (tank model) and observation equation (water balance). A systemtheoretic state estimation method is applied to the dynamical system in order to estimate unobservable internal states of the cycle on the basis of・ observed output data. As a result, it is possible to evaluate the amount of water in each process of the hydrologic cycle such as.snowmelt, rainfall, water storage, and runoff.},
 pages = {31--40},
 title = {琵琶湖流域の水循環モデルとその状態量推定},
 volume = {2},
 year = {1980}
}