HUJAN EFEKTIF

Curah Hujan Efektif R80

Desa/Kel. Langki, Kec. Tanjung Gadang, Sijunjung, Prov. Sumatera Barat

GPM01D_E10115_S0095

Detail Grid Data Harian

Panjang Data 28 tahun tersedia

R80 Rata-rata 5.02 mm/hari

Reff Padi Rata-rata 3.51 mm/hari

Reff Padi Maksimum 6.08 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	168.08	127.77	73.09	160.89	153.57	127.19	257.72	76.24	168.60	81.64	89.55	253.62	109.60	121.38	324.19	267.76	135.07	166.60	91.06	200.12	174.73	47.68	171.02	183.31
1999	165.43	177.32	79.74	233.17	203.10	70.88	40.49	159.29	174.30	68.50	69.00	91.54	223.20	8.48	33.42	126.55	133.33	193.37	145.92	359.20	135.65	299.59	114.98	158.41
2000	268.28	55.62	65.90	59.41	49.20	186.02	151.16	154.33	58.54	179.90	163.70	112.33	24.20	180.60	171.80	51.99	28.02	180.02	103.85	104.23	176.69	211.80	126.25	228.25
2001	135.98	189.44	101.59	294.16	139.90	47.77	196.08	294.95	76.01	106.86	125.33	48.06	14.29	91.76	53.03	68.07	62.89	175.17	35.14	268.32	149.46	79.02	97.50	118.78
2002	108.45	185.68	22.38	72.82	124.77	200.56	223.95	288.90	84.64	158.66	86.64	70.96	46.14	62.45	61.45	68.23	133.98	105.18	25.51	205.39	84.95	297.25	170.38	186.52
2003	170.56	136.80	188.81	100.29	142.69	230.15	275.88	262.92	105.07	6.47	7.57	168.29	65.74	49.15	161.66	157.15	129.38	173.54	200.34	130.48	280.77	223.22	295.57	49.48
2004	77.71	255.46	102.35	99.93	171.63	113.47	283.36	165.71	91.10	83.93	48.95	62.03	165.56	90.78	70.45	26.43	26.70	170.74	68.44	283.46	152.73	210.89	266.65	168.88
2005	186.17	81.94	101.92	74.95	68.61	207.00	69.25	199.65	59.84	163.61	108.79	35.93	91.10	133.20	100.94	195.18	107.08	189.86	203.08	280.24	117.20	217.45	156.40	152.98
2006	279.72	93.91	175.29	180.29	141.59	234.70	140.25	126.79	43.92	86.17	107.44	68.32	20.80	85.24	30.15	91.28	138.24	20.19	38.27	63.09	99.32	153.21	216.50	261.50
2007	164.82	275.56	16.57	230.90	47.42	278.33	247.20	143.66	84.13	120.30	126.75	127.15	67.93	91.15	11.43	130.79	171.21	104.65	95.53	238.39	127.28	83.79	235.51	156.53
2008	72.57	263.71	121.71	121.59	194.77	141.89	270.60	96.15	131.72	188.27	122.48	115.24	107.99	100.76	37.85	221.78	184.24	128.31	110.74	182.97	155.68	105.61	307.52	66.36
2009	181.47	142.49	80.55	119.24	132.15	160.32	283.75	67.14	85.02	8.38	73.11	50.65	89.29	48.39	66.61	148.78	145.12	129.15	144.12	83.32	147.73	297.23	186.70	280.16
2010	119.73	188.98	184.34	178.79	236.49	319.76	230.25	178.48	149.80	69.57	79.31	234.78	144.59	227.80	121.96	251.16	172.43	189.86	161.08	166.85	132.21	258.72	69.58	101.91
2011	94.82	148.55	96.37	89.59	111.45	68.91	137.12	341.87	18.46	141.26	156.45	50.50	56.14	23.31	85.33	43.64	71.04	159.64	74.74	179.35	287.27	238.70	190.07	123.97
2012	76.09	37.33	181.63	185.30	112.63	130.44	155.93	89.91	84.99	172.50	62.19	24.06	147.57	48.03	15.12	80.22	91.50	79.16	70.58	257.02	343.74	258.34	197.48	231.48
2013	25.87	222.53	343.86	71.41	105.66	239.93	176.55	174.88	90.99	104.29	78.41	64.05	73.42	65.26	66.64	85.59	119.63	112.48	100.74	262.80	167.44	134.89	262.56	109.83
2014	178.98	16.20	35.58	51.22	16.10	189.84	91.18	247.96	238.85	188.28	53.44	49.74	128.77	43.52	155.72	130.75	67.45	88.49	97.47	135.70	282.18	303.62	92.93	177.27
2015	85.49	186.63	85.19	133.32	208.17	143.74	184.65	239.37	98.27	53.90	195.00	13.47	51.38	18.39	106.37	9.43	13.35	101.69	22.61	23.24	231.26	234.29	354.30	55.38
2016	150.17	134.98	177.35	91.55	166.75	216.39	200.59	192.60	130.61	123.33	198.26	22.64	28.79	134.04	46.21	170.32	130.39	98.37	73.44	125.48	226.51	139.32	89.85	80.35
2017	144.96	139.92	21.95	214.59	148.49	169.08	189.35	168.08	167.09	113.36	49.23	65.39	106.23	24.49	110.48	86.19	87.24	210.60	144.42	128.12	215.54	184.64	92.49	183.73
2018	85.47	32.18	29.20	268.99	331.36	105.00	102.97	177.66	59.34	181.76	76.10	114.95	76.65	40.26	61.30	122.06	54.31	125.35	163.52	242.09	248.92	160.29	306.79	107.67
2019	179.50	93.26	97.31	169.75	97.45	197.93	120.21	204.54	46.67	116.83	133.94	59.67	71.20	21.34	7.06	91.83	4.68	91.27	28.01	85.40	72.17	72.21	209.25	169.10
2020	94.29	230.96	105.97	131.06	90.11	210.72	230.59	198.44	130.62	164.50	121.15	153.08	196.02	64.83	136.28	11.39	139.87	185.81	165.08	122.40	206.52	187.26	44.15	120.29
2021	113.93	135.84	115.15	14.50	153.17	227.81	117.89	137.88	126.36	211.72	122.46	116.92	96.80	23.32	134.69	211.26	127.07	234.43	67.07	179.54	150.39	49.07	193.70	242.67
2022	114.90	127.29	153.57	156.85	209.30	26.06	114.47	222.16	115.35	45.17	173.02	134.09	86.21	123.72	73.36	310.01	137.14	177.72	235.46	184.47	217.94	107.51	199.38	55.61
2023	120.00	140.85	111.92	121.76	90.04	249.85	111.25	231.06	135.55	150.49	98.13	138.36	143.28	72.11	53.84	245.71	44.49	44.69	8.30	140.79	136.35	137.28	296.52	146.40
2024	307.33	180.06	271.70	125.95	266.17	66.01	210.69	203.92	279.40	148.05	147.78	143.39	112.43	1.97	54.17	129.47	178.44	78.88	218.05	57.44	197.96	201.83	88.77	182.58
2025	194.61	203.48	73.97	210.10	226.77	136.25	243.28	91.23	141.73	60.57	100.72	47.72	84.61	83.60	119.97	55.05	133.67	139.53	–	–	–	–	–	–

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	85.48	90.99	59.84	74.52	90.10	98.17	113.82	120.66	59.74	66.91	67.63	47.99	50.33	23.32	36.96	54.43	52.35	90.71	37.02	96.69	130.23	96.88	92.75	93.28
R80mm/hari	5.70	5.69	4.27	5.32	6.01	6.14	7.59	8.04	3.98	4.18	4.51	3.20	3.36	1.46	2.46	3.40	3.49	6.05	2.47	6.04	8.68	6.46	6.18	5.83
Reff Padimm/hari	3.99	3.98	2.99	3.73	4.20	4.30	5.31	5.63	2.79	2.93	3.16	2.24	2.35	1.02	1.72	2.38	2.44	4.23	1.73	4.23	6.08	4.52	4.33	4.08

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.