The rivers water level fluctuation primary factor measurement

摘要

PROBLEM TO BE SOLVED: To provide a river water level predicting apparatus which predicts the water level of a river with accuracy.;SOLUTION: The river water level predicting apparatus 11 comprises a water level measuring section 5 for measuring the water level of the river 4 and storing therein a measured value, rainfall measuring sections 7, 8 for measuring rainfall quantities of a river 2 and the river 4 and storing therein the quantities, and a water level predicting model 20 for predicting the water level of the river, based on the measured values. The water level predicting model 20 has an autoregressive portion and an FIR model portion, and the model 20 is identified by a model identifying section 21. The model identifying section separately calculates a parameter for the autoregressive section and a parameter for the FIR model section, based on the measured values.;COPYRIGHT: (C)2004,JPO