HUJAN EFEKTIF

Curah Hujan Efektif R80

Desa/Kel. Surian, Kec. Pantai Cermin, Solok, Prov. Sumatera Barat

GPM01D_E10095_S0125

Detail Grid Data Harian

Panjang Data 28 tahun tersedia

R80 Rata-rata 4.54 mm/hari

Reff Padi Rata-rata 3.18 mm/hari

Reff Padi Maksimum 5.84 mm/hari

Metode mengikuti pola modul TRMM hidrologi.net: data setengah bulanan diurutkan, probabilitas Weibull dihitung dengan m/(n+1), R80 diinterpolasi, kemudian hujan efektif padi = 70% × R80 per hari.

Harian Bulanan Hari Hujan Maksimum Tahunan Hujan Efektif

DATA SETENGAH BULANAN

Curah Hujan per Periode I–II

Akumulasi curah hujan setengah bulanan untuk penyusunan ranking probabilitas.

mm/periode

Tahun	Jan		Feb		Mar		Apr		Mei		Jun		Jul		Agu		Sep		Okt		Nov		Des
Tahun	I	II	I	II	I	II	I	II	I	II	I	II	I	II	I	II	I	II	I	II	I	II	I	II
1998	165.57	114.02	89.52	98.23	118.04	96.75	162.94	113.32	172.65	50.54	175.87	102.61	131.21	112.29	167.28	307.10	201.75	172.31	81.17	157.30	175.85	62.48	225.80	151.97
1999	90.24	289.85	107.21	135.65	196.92	66.97	53.02	62.51	183.11	37.23	90.01	28.93	89.01	11.26	27.36	87.12	111.17	208.35	138.17	309.82	137.81	255.87	200.43	94.48
2000	283.42	46.93	61.39	79.87	20.94	97.63	107.21	162.04	16.95	143.66	107.07	102.46	25.53	180.35	159.23	46.95	23.66	187.88	109.63	118.42	127.43	280.15	104.96	238.15
2001	112.75	235.49	196.16	65.64	91.65	56.54	174.34	176.42	66.83	61.98	115.58	59.06	11.04	91.46	38.21	79.59	85.18	125.26	46.38	185.68	139.45	65.32	55.37	134.55
2002	57.96	234.45	25.82	67.54	99.70	147.96	159.13	166.82	100.54	119.79	116.33	38.62	56.92	63.11	56.51	64.61	118.65	96.61	78.43	149.39	110.02	249.02	198.85	161.37
2003	73.64	168.91	140.85	125.10	103.48	222.46	220.45	212.39	96.69	6.91	31.21	88.20	88.18	23.46	69.08	205.94	161.41	98.40	249.24	84.32	192.96	224.47	243.97	54.14
2004	75.08	205.73	74.79	105.72	85.82	124.22	238.21	163.34	94.50	69.78	53.23	33.21	145.11	77.19	56.60	47.36	36.98	131.99	87.59	180.45	232.17	95.42	154.71	113.32
2005	202.75	46.53	63.95	106.52	79.80	157.72	41.13	136.99	54.87	136.23	87.96	36.64	104.36	126.92	167.63	188.18	146.66	135.03	179.59	355.14	156.25	124.75	168.47	104.85
2006	230.25	102.18	107.14	244.82	102.05	251.74	114.95	150.09	29.66	90.75	64.15	88.51	19.40	161.12	28.51	99.33	104.96	19.70	15.52	65.59	101.21	144.90	226.42	166.27
2007	241.66	249.47	6.81	251.22	77.06	168.18	164.69	130.06	91.22	74.88	163.09	59.24	78.73	59.18	10.35	128.71	125.46	124.09	140.18	233.88	128.87	56.98	179.80	209.57
2008	57.93	257.60	44.95	76.31	239.93	102.30	186.20	161.39	53.48	101.26	101.63	152.02	85.08	154.48	16.73	250.40	207.91	86.28	120.93	181.66	121.68	81.21	216.73	149.48
2009	125.52	192.82	56.87	124.68	95.30	122.53	175.97	70.87	80.50	6.51	62.47	121.50	70.28	90.93	50.51	149.76	158.01	116.06	111.12	111.69	164.63	140.62	142.83	293.76
2010	109.77	146.67	157.44	170.68	350.03	222.36	208.34	96.23	110.29	105.28	90.60	162.19	158.64	195.45	181.40	165.42	168.17	182.07	139.02	146.16	115.56	278.56	49.50	62.28
2011	88.16	131.98	72.50	125.27	94.06	66.07	122.88	257.85	15.90	95.95	126.63	67.77	56.13	22.09	77.42	36.85	104.44	140.59	34.05	225.50	239.11	264.96	196.06	105.76
2012	68.57	50.76	162.79	173.78	147.71	77.94	198.90	114.04	72.59	149.19	117.82	39.69	128.52	55.93	19.89	80.55	121.47	50.53	105.29	173.81	199.17	310.08	173.32	233.26
2013	50.42	123.29	287.23	89.35	93.84	145.33	108.75	160.26	60.36	64.51	125.99	55.17	114.66	83.19	58.66	105.94	152.21	69.81	111.20	254.96	134.28	144.75	224.64	108.84
2014	250.23	21.30	30.40	17.45	46.85	111.99	117.40	190.14	147.78	125.70	47.63	43.91	95.94	16.83	118.22	91.58	69.16	98.91	63.80	156.34	224.07	281.57	63.78	103.12
2015	63.62	120.22	84.05	137.30	181.11	91.65	126.53	236.35	68.99	81.16	186.40	27.80	62.20	8.61	129.38	26.32	5.66	119.95	10.52	29.55	237.65	213.12	315.84	58.93
2016	155.91	109.75	117.10	149.70	157.93	205.54	156.02	146.73	106.58	116.53	176.33	36.76	25.89	155.10	40.18	103.61	75.14	118.15	78.46	121.85	151.76	147.19	86.35	105.72
2017	156.68	109.93	20.73	223.78	163.49	121.99	143.07	142.36	175.42	65.39	29.94	81.21	99.11	12.22	91.05	85.54	112.66	156.84	159.92	83.72	248.76	151.81	73.78	160.67
2018	96.90	13.13	29.41	236.21	193.66	171.73	82.45	162.06	40.92	176.85	54.86	87.06	84.56	61.97	30.45	138.67	76.94	95.55	186.03	202.71	170.25	161.90	280.70	74.92
2019	145.58	72.32	91.38	147.11	117.24	164.92	137.55	128.55	53.33	127.57	127.24	56.52	42.90	17.42	8.68	71.88	29.68	86.18	26.87	87.09	31.59	191.77	204.64	201.44
2020	86.90	195.98	94.00	92.40	93.71	158.79	246.00	149.78	116.66	116.67	109.94	112.53	196.04	49.48	98.59	42.60	119.21	176.15	153.20	132.54	158.58	213.53	48.23	105.13
2021	163.94	105.75	49.62	30.14	102.66	303.89	100.59	113.26	192.61	115.79	46.69	203.04	115.41	31.17	95.62	188.35	142.11	250.26	55.40	190.44	140.74	51.04	142.89	271.06
2022	106.26	127.79	142.01	84.02	161.36	48.86	75.82	171.64	87.13	80.87	192.48	153.51	96.03	112.08	102.23	210.16	232.68	143.08	235.96	155.19	255.80	129.90	157.34	49.64
2023	100.29	153.77	74.25	93.04	59.60	236.71	90.53	145.42	139.33	88.35	198.33	80.33	146.40	61.97	70.15	184.37	37.63	38.17	6.97	89.74	154.14	143.69	201.73	179.52
2024	210.25	144.83	184.48	144.64	240.70	105.95	247.07	188.30	260.62	73.54	153.00	121.53	105.29	9.91	86.86	95.58	113.09	114.23	184.49	66.41	201.00	200.37	78.75	187.45
2025	168.83	197.85	99.08	159.37	226.45	96.91	169.82	124.34	103.92	17.49	76.33	77.24	97.07	74.77	120.80	42.62	128.49	155.57	–	–	–	–	–	–

HASIL R80

Ringkasan R80 dan Hujan Efektif

Nilai ditampilkan untuk periode I dan II setiap bulan.

Parameter	Jan I	Jan II	Feb I	Feb II	Mar I	Mar II	Apr I	Apr II	Mei I	Mei II	Jun I	Jun II	Jul I	Jul II	Agu I	Agu II	Sep I	Sep II	Okt I	Okt II	Nov I	Nov II	Des I	Des II
R80mm/periode	72.63	68.00	42.04	79.15	84.61	88.91	98.57	113.89	53.45	59.69	54.53	38.24	53.48	17.30	28.28	47.27	62.85	86.26	41.44	85.98	125.13	89.73	76.76	86.65
R80mm/hari	4.84	4.25	3.00	5.65	5.64	5.56	6.57	7.59	3.56	3.73	3.64	2.55	3.57	1.08	1.89	2.95	4.19	5.75	2.76	5.37	8.34	5.98	5.12	5.42
Reff Padimm/hari	3.39	2.98	2.10	3.96	3.95	3.89	4.60	5.31	2.49	2.61	2.54	1.78	2.50	0.76	1.32	2.07	2.93	4.03	1.93	3.76	5.84	4.19	3.58	3.79

R80

INTERPRETASI

Nilai R80 menggambarkan curah hujan yang dapat diandalkan pada probabilitas 80%. Hujan efektif padi pada modul ini dihitung sebesar 70% dari R80 harian dan dapat digunakan sebagai input awal analisis kebutuhan air irigasi dengan tetap memperhatikan metode desain dan data lapangan yang digunakan pada studi.