Approaching flood can be likened to a oncoming missile, and flood routing is viewed as to build an anti-missile system. The applications of the Kalman filter to hydrologic models are not suitable. The Kalman filter fails to yield totally effective predictions in the hydrologic routing by the fact that any specific objective (peakflow) cannot be designated in advance. Without predetermined objectives, the predicted flows cannot catch the real values but follow the traces of the real hydrograph.
"Studies of Tumbling Motion Generated During Intake in a Bowl-in-Piston Engine,"
Journal of Marine Science and Technology: Vol. 7:
1, Article 8.
Available at: https://jmstt.ntou.edu.tw/journal/vol7/iss1/8