HUJAN EFEKTIF

Curah Hujan Efektif R80

Desa/Kel. Pakan Rabaa Timur, Kec. Koto Parik Gadang Diateh, Solok Selatan, Prov. Sumatera Barat

GPM01D_E10115_S0125

Detail Grid Data Harian

Panjang Data 28 tahun tersedia

R80 Rata-rata 5.02 mm/hari

Reff Padi Rata-rata 3.52 mm/hari

Reff Padi Maksimum 6.11 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	161.14	97.33	83.26	180.11	215.51	107.98	188.33	119.35	189.62	78.18	121.61	134.09	153.02	107.61	100.77	346.75	163.56	185.15	126.42	176.62	186.94	38.56	224.60	166.92
1999	120.94	236.28	104.24	217.26	192.06	91.72	61.14	61.14	187.91	43.19	99.42	42.32	128.14	9.56	37.91	105.99	108.04	210.24	142.84	319.39	124.72	276.44	170.82	146.89
2000	313.79	68.64	73.14	59.69	44.00	115.70	137.14	179.99	29.21	156.65	149.59	86.06	30.06	183.71	184.62	44.94	27.87	179.06	112.76	123.42	173.04	283.06	85.79	262.42
2001	135.17	241.92	175.04	121.24	93.78	68.90	146.12	210.55	66.55	75.19	108.33	56.52	14.78	94.67	56.51	64.23	100.35	123.32	61.90	206.14	144.18	69.36	73.39	165.18
2002	72.52	269.86	32.21	55.20	126.60	171.89	205.86	245.03	108.72	137.90	100.84	68.56	61.83	43.06	32.80	103.32	126.57	114.87	47.80	177.61	125.94	257.55	208.84	159.48
2003	164.16	116.72	247.70	121.29	140.22	239.51	221.12	257.62	103.57	7.43	73.20	79.59	100.37	25.96	189.00	134.94	159.34	102.79	220.43	101.65	194.10	242.94	288.09	44.29
2004	84.63	233.60	132.92	71.75	116.35	150.87	227.22	181.69	101.31	94.40	35.29	86.06	173.16	66.30	47.91	60.95	22.93	148.60	75.25	197.97	203.35	139.20	225.37	130.75
2005	212.52	99.05	95.89	90.07	100.63	159.00	76.14	220.60	79.76	135.03	83.09	54.77	95.95	117.06	101.76	212.07	153.83	119.14	190.19	333.92	146.62	160.33	150.02	110.17
2006	222.59	116.92	103.03	267.22	113.99	244.03	166.66	139.16	28.44	109.35	94.56	82.00	10.89	135.36	12.97	77.97	132.61	23.07	23.70	69.47	83.31	176.58	193.76	234.77
2007	161.01	329.75	12.17	252.13	67.59	177.68	168.99	172.21	56.53	180.04	117.81	92.66	104.06	66.63	23.07	116.25	163.89	105.89	141.43	219.61	137.95	78.44	177.17	228.19
2008	105.35	275.87	82.87	149.97	264.58	86.78	259.56	117.78	85.96	104.14	120.51	116.40	78.12	138.77	35.83	208.84	190.19	129.99	88.53	247.00	153.82	71.18	313.57	86.91
2009	143.65	163.87	62.17	147.45	104.94	149.90	184.01	80.54	101.73	6.48	99.29	59.99	79.78	87.69	112.80	100.50	135.98	156.57	129.51	99.22	159.88	168.48	166.87	284.06
2010	107.08	195.71	187.80	170.36	380.28	230.50	249.75	98.41	87.50	142.79	115.81	166.23	133.18	231.40	140.65	212.71	172.88	167.73	165.58	125.76	119.87	324.50	48.78	97.41
2011	69.92	170.35	112.05	100.92	97.86	62.77	125.59	302.52	19.56	160.81	145.79	53.18	37.67	31.27	70.84	47.13	100.42	132.84	44.33	236.84	256.33	232.48	163.25	157.68
2012	82.31	42.48	121.51	274.39	134.71	81.77	167.27	117.98	78.87	120.80	90.71	22.00	129.72	54.04	27.34	65.72	166.91	40.29	104.81	189.04	313.64	239.17	161.89	260.01
2013	38.08	169.09	383.22	48.75	89.64	237.24	133.99	165.82	72.24	73.16	120.38	55.66	103.85	77.62	41.03	121.35	118.02	115.49	152.50	250.66	146.62	134.17	217.51	112.65
2014	191.50	21.64	94.99	42.03	39.04	126.45	65.96	243.06	172.20	173.77	38.99	47.99	98.37	31.81	134.48	87.88	57.31	92.10	102.59	104.42	306.84	254.57	71.81	123.12
2015	83.81	143.07	122.67	140.53	164.75	152.19	144.97	241.68	115.01	65.76	217.64	17.02	62.41	8.27	119.78	10.35	8.99	121.87	18.70	20.83	211.47	227.40	327.78	84.00
2016	159.56	128.42	167.13	157.96	115.52	241.35	156.70	204.01	120.56	136.52	168.47	35.12	48.09	104.55	55.10	131.54	86.38	119.07	71.32	112.23	190.81	134.15	91.23	86.45
2017	165.80	105.09	30.61	199.87	141.13	131.43	173.08	138.77	164.82	93.38	42.27	76.38	100.33	20.83	106.47	80.50	117.20	173.86	179.89	75.90	225.20	168.31	113.88	139.40
2018	102.11	19.91	56.45	244.14	207.94	169.10	74.00	201.20	62.00	157.82	85.06	81.63	104.49	51.53	19.62	142.52	83.91	71.70	145.17	242.84	229.17	144.41	292.33	81.43
2019	170.96	92.24	72.61	187.40	82.50	199.81	131.69	184.52	62.16	91.21	142.10	61.59	77.51	7.32	15.68	52.30	29.00	93.61	17.44	88.56	40.88	116.05	179.01	191.54
2020	104.65	231.82	140.77	120.35	122.25	199.73	213.61	220.29	125.33	138.92	106.52	112.92	172.00	57.40	141.45	25.52	141.86	194.32	180.10	150.02	170.95	232.64	45.77	109.67
2021	114.28	124.56	66.62	31.12	87.46	371.32	127.17	120.24	215.71	151.54	106.44	142.82	150.18	8.79	91.75	217.24	139.73	251.40	96.44	162.12	134.10	83.58	194.40	230.62
2022	68.18	145.68	183.76	84.04	182.76	29.12	125.76	201.35	92.45	74.75	161.65	204.08	96.12	125.75	110.58	261.75	231.87	118.89	236.78	157.56	264.02	79.27	192.54	51.52
2023	137.26	138.61	55.63	140.56	108.25	211.55	111.60	151.27	118.58	113.03	154.27	153.53	144.39	84.61	61.10	200.59	54.77	31.56	4.10	122.99	180.76	128.92	224.35	157.52
2024	276.94	193.88	196.45	152.68	240.36	124.60	219.38	194.01	304.30	86.99	157.88	126.06	99.74	13.77	48.11	121.08	118.42	115.83	191.94	72.29	239.43	213.66	75.05	195.49
2025	178.13	256.84	79.11	226.72	231.54	93.54	225.75	89.46	137.89	12.67	93.78	46.99	92.01	129.63	131.21	43.58	133.41	150.32	–	–	–	–	–	–

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	83.51	96.31	61.03	69.33	89.20	90.73	122.79	117.94	62.13	71.68	84.66	47.79	59.08	19.42	31.70	51.26	56.80	93.30	46.41	94.95	130.83	81.86	81.49	86.72
R80mm/hari	5.57	6.02	4.36	4.95	5.95	5.67	8.19	7.86	4.14	4.48	5.64	3.19	3.94	1.21	2.11	3.20	3.79	6.22	3.09	5.93	8.72	5.46	5.43	5.42
Reff Padimm/hari	3.90	4.21	3.05	3.47	4.16	3.97	5.73	5.50	2.90	3.14	3.95	2.23	2.76	0.85	1.48	2.24	2.65	4.35	2.17	4.15	6.11	3.82	3.80	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.