[Retracted] Dynamic Control of Water Level in Flood Limited Reservoir Based on Intelligent Calculation

Table 1

River basin rainfall forecast accuracy.

Forecast magnitude	Statistics project	Number of forecasts issued	The actual frequency and frequency of rainfall of various magnitudes						Missed alarm rate (%)	Accuracy rate (%)	Empty alarm rate (%)
			<0.1	0.1∼10	10∼25	25∼50	50∼100	>100
No rain	Frequency (time)	904	836	64	4	0	0	0	68	836	0
	Frequency (%)		92.5	7.1	0.4	0.0	0.0	0.0	7.5	92.5	0.0
Light rain	Frequency (time)	381	192	156	24	9	0	0	33	156	192
	Frequency (%)		50.4	41.9	6.3	2.4	0.0	0.0	8.7	40.9	50.4
Light to moderate rain	Frequency (time)	53	7	28	13	5	0	0	5	41	7
	Frequency (%)		13.2	52.8	24.5	9.5	0.0	0.0	9.5	77.3	13.2
Moderate rain	Frequency (time)	29	2	7	14	5	1	0	6	14	9
	Frequency (%)		6.9	24.1	48.3	17.2	3.4	0.0	20.6	48.3	31.0
Moderate to heavy rain	Frequency (time)	1	0	0	0	1	0	0	0	0	1
	Frequency (%)		0.0	0.0	100.0	0.0	0.0	0.0	0.0	0.0	100.0
Heavy rain	Frequency (time)	0	0	0	0	0	0	0	0	0	0
	Frequency (%)		0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Heavy rain to rain storm	Frequency (time)	7	0	1	1	4	1	0	0	5	2
	Frequency (%)		0.0	14.3	14.3	57.1	14.3	0.0	0.0	71.4	28.6