The water will come in with a certain characteristic of this type of level and then build a certain amount of depth at the level, which will take some time, "said Boonpracong."

A few and familiar methods of filtering are introduced. And the inside influence of the filtering methods which are infected by characteristic of the data in Boiler Water Level is analyzed.

In the similarity analysis of floods, the extension model is developed which takes the average water level and average flow of key stations as two characteristic indices.