The Comparison of Grey System and the Verhulst Model for Rainfall and Water in Dam Prediction

Table 6

The quantity of drained water from 2003 to 2015.

Dam	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015
													Unit: sMCM
Northern
Bhumibol	7,852.81			6,000.10	7,250.70	6,755.00	6,839.70	5,101.74	7,874.10	9,156.24	4,298.49	3,930.61	2,560.90
Sirikit	6,759.33			6,261.00	6,321.70	6,266.00	6,720.40	3,918.83	9,498.29	8,158.97	4,292.41	4,306.35	4,490.16
Mae Ngad	331.31			403.50	319.40	350.00	120.20	202.23	458.75	276.70	192.37	222.01	176.79
Kiu Lom	562.22			980.70	474.00	473.00	543.31	730.76	1,500.42	665.61	554.78	490.20	263.42
Mae Kuang	213.25	188.83	122.00	266.00	238.10	133.00	164.80	99.08	319.08	272.41	157.76	167.61	68.76
Kiu kho mha							160.80	205.66	474.24	66.51	144.07	231.60	87.19
Kwai Noi							920.70	1,196.38	2,899.93	1,211.39	1,533.37	923.51	765.03
Sum	15,718.92	188.83	122.00	13,911.30	14,603.90	13,977.00	15,469.91	11,454.68	23,024.81	19,807.84	11,173.24	10,271.88	8,412.25
Northeastern
Lam Pao	1,818.72			1,893.90	2,490.20	2,236.00	1,988.90	2,227.28	2,825.88	2,206.08	240.23	1,231.64	1,246.90
Lam Ta Khong	198.19	230.10	71.00	283.20	269.50	205.00	164.10	259.28	439.99	329.92	146.65	285.15	158.47
Lam Pa Peung	201.76	179.41	47.00	156.00	150.70	180.00	159.00	319.11	216.35	165.04	215.21	164.99	54.41
Nam Oun	421.42	217.23		377.50	242.50	403.00	391.50	161.53	423.82	417.70	224.82	312.06	218.29
Ubonrat	2,481.98			948.00	2,254.60	3,898.00	2,048.40	3,172.75	4,641.91	1,735.34	1,249.84	1,144.49	470.38
Sirinthorn	856.07			1,477.20	1,669.30	1,348.00	1,741.40	579.27	1,321.89	889.31	1,430.55	2,004.35	453.84
Chulaporn	165.37	108.29	50.00	139.30	118.50	174.00	160.30	235.23	259.22	142.50	107.68	123.18	85.86
Huai Luang	110.15	132.58	54.00	102.20	107.30	123.00	160.40	76.71	254.74	94.49	35.35	77.78	36.54
Lam Nangrong	10.76	17.34	13.00	25.70	28.40	15.00	24.30	20.50	23.63	40.28	121.24	39.91	20.92
Nam Moon	86.39	102.53	32.00	76.60	119.30	71.00	123.00	60.00	170.00	127.39	58.48	96.62	41.43
Nam Pung	77.25	133.37	200.00	106.40	123.00	121.00	87.60	81.70	169.68	118.79	73.06	46.21	48.37
Lam Seah Lam	187.41	116.02	103.00	144.00	192.70	168.00	238.40	157.85	234.58	334.28	167.75	263.70	123.90
Sum	6,615.47	1,236.87	570.00	5,730.00	7,766.00	8,942.00	7,287.30	7,351.21	10,981.69	6,601.13	4,070.85	5,790.09	2,959.31
Central
Pa Sak	1,711.81			3,085.10	2,383.70	2,727.00	2,099.10	3,260.88	4,469.46	1,145.71	2,109.78	1,151.13	803.61
Kasiew	247.57		73.00	273.40	497.00	501.00	287.90	593.74	414.58	320.01	156.92	321.57	125.95
Tapsaloaw	131.47	42.28	38.00	117.50	174.90	246.00	164.50	172.87	183.83	110.61	149.10	66.23	27.47
Sum	2,090.85	42.28	111.00	3,476.00	3,055.60	3,474.00	2,551.50	4,027.49	5,067.87	1,576.33	2,415.80	1,538.93	957.03
Western
Srinakarin	5,623.07			4,372.40	4,913.30	4,360.00	5,396.40	4,946.70	5,635.98	6,153.07	5,794.98	4,788.58	2,104.83
Vajiralongkorm				7,303.40	5,360.90	6,155.00	6,222.60	4,417.41	4,336.38	6,774.76	5,639.64	5,070.31	3,927.87
Sum	5,623.07	—	—	11,675.80	10,274.20	10,515.00	11,619.00	9,364.11	9,972.36	12,927.83	11,434.62	9,858.89	6,032.70
Eastern
Bang Pha	21.80	26.18	37.00	33.00	27.90	33.00	43.00	40.31	51.92	42.93	46.65	61.07	63.79
Nhongpralhai	177.18	159.04	243.00	144.90	182.30	171.00	228.10	194.17	317.52	191.56	385.50	254.11	51.42
Praprong			153.00	207.90	202.20	161.00	262.90	268.96	361.11	326.46	364.69	330.98	180.53
Sriyad				383.20	175.20	377.00	275.80	220.43	659.50	298.69	292.04	248.92	191.59
Sum	198.98	185.22		165.10	204.00	230.00	190.40	207.63	331.69	228.91	216.34	104.09	176.58
Southern			433.00	934.10	791.60	972.00	1,000.20	931.50	1,721.74	1,088.55	1,305.21	999.16	663.91
Kaeng Krachan	866.21
Pranburi	743.79			1,551.40	1,137.60	703.00	1,017.40	583.63	626.84	876.21	918.13	978.62	664.47
Rajjaprabha	1,815.42		245.00	987.80	347.00	390.00	482.60	315.54	218.86	252.19	487.60	387.06	264.41
Banglang	913.01			2,897.30	2,427.80	2,035.00	2,598.40	2,645.61	2,879.14	3,710.79	2,185.59	2,621.14	1,820.36
Bangwas				2,041.90	1,608.40	2,129.00	1,672.60	1,691.68	1,993.04	1,710.19	1,300.41	1,427.89	1,858.87
Sum	4,338.43	—	245.00	7,478.40	5,520.80	5,257.00	5,771.00	5,236.46	5,717.88	6,549.38	4,891.73	5,414.71	4,608.11
Total	34,585.72	1,653.20	1,481.00	43,205.60	42,012.10	43,137.00	43,698.91	38,365.45	56,486.35	48,551.07	35,291.46	33,873.67	23,633.31

Source: Royal Irrigation Department of Thailand. The values given in italics are uncertain.