HUJAN EFEKTIF

Curah Hujan Efektif R80

Desa/Kel. Purba Manalu, Kec. Dolok Sanggul, Humbang Hasundutan, Prov. Sumatera Utara

GPM01D_E09875_N0225

Detail Grid Data Harian

Panjang Data 28 tahun tersedia

R80 Rata-rata 4.39 mm/hari

Reff Padi Rata-rata 3.07 mm/hari

Reff Padi Maksimum 5.09 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	80.47	73.92	58.93	60.35	104.25	38.19	61.32	46.53	69.88	40.70	81.09	52.63	68.98	144.04	143.61	298.83	99.33	54.69	132.91	118.62	179.71	76.39	259.02	132.37
1999	104.12	111.84	112.18	78.08	159.86	96.21	118.67	88.99	80.69	73.75	81.40	61.98	104.42	37.28	75.46	112.06	190.90	207.10	242.41	184.63	78.45	149.03	187.25	70.75
2000	123.60	57.38	71.91	87.59	50.71	190.75	71.95	89.54	27.90	84.29	96.97	51.42	20.87	145.15	100.03	34.00	192.80	232.31	66.84	57.26	139.19	190.54	70.68	217.56
2001	106.95	109.33	114.21	73.38	70.60	50.63	147.62	125.83	54.10	44.57	71.91	94.66	31.33	85.55	50.71	74.45	123.04	181.79	46.20	151.12	126.22	70.69	86.44	143.11
2002	20.48	161.70	33.73	161.21	58.64	174.36	84.70	135.85	168.28	209.22	60.77	18.48	48.24	82.04	28.75	85.03	151.77	66.26	111.84	168.61	169.68	166.72	79.77	152.51
2003	185.09	159.43	65.26	95.88	126.83	167.51	113.68	148.18	80.16	5.41	76.24	138.08	81.31	34.31	157.92	101.98	56.05	131.38	184.45	72.23	168.19	149.78	169.63	34.40
2004	154.96	116.80	63.09	132.23	98.89	127.82	111.11	146.93	71.31	84.40	37.94	22.96	39.70	103.02	42.32	37.65	80.75	196.52	120.91	169.32	157.79	112.25	108.02	111.04
2005	165.26	43.32	67.03	62.14	53.72	139.34	98.73	85.24	58.99	41.29	38.39	46.63	76.67	97.86	36.72	283.95	65.10	91.30	205.04	258.10	115.92	144.52	190.68	55.19
2006	174.58	56.42	97.19	133.23	30.01	137.06	116.13	120.62	63.52	109.41	116.44	56.51	31.42	33.16	53.08	75.53	151.66	166.90	138.22	171.02	205.34	58.84	189.18	108.15
2007	149.92	118.07	25.20	154.60	59.69	127.01	154.25	82.55	101.60	158.48	91.08	66.59	28.14	252.60	29.90	109.05	188.59	61.90	184.46	275.59	147.95	101.42	185.23	76.94
2008	131.19	112.91	56.32	60.45	94.27	130.93	104.00	122.52	61.77	92.42	57.58	77.52	147.25	78.30	35.07	195.75	188.72	97.30	186.73	144.57	98.87	130.44	215.94	89.95
2009	116.04	125.71	62.93	80.68	189.13	139.25	130.95	66.66	70.29	26.64	56.87	82.59	50.60	36.80	64.84	127.00	135.24	78.89	63.76	169.15	122.16	109.92	118.78	146.53
2010	138.11	133.98	73.23	85.37	87.12	137.70	81.19	136.87	97.67	63.89	147.94	76.50	113.05	113.66	66.17	111.24	81.81	149.29	150.59	137.00	140.89	200.23	156.79	114.90
2011	111.80	77.58	77.31	80.92	148.55	141.91	119.83	177.54	30.72	133.82	65.00	38.42	62.62	18.75	70.39	170.84	123.61	83.03	104.25	196.29	295.76	109.89	204.43	173.96
2012	51.88	64.95	119.01	118.05	100.09	109.09	148.78	119.31	107.87	99.37	46.65	53.10	200.96	65.92	48.76	129.14	76.21	141.18	73.57	141.98	195.45	158.16	228.70	134.72
2013	42.80	164.59	99.70	118.33	36.25	92.67	98.81	132.81	51.89	69.53	62.10	69.85	30.63	25.25	48.83	132.13	129.27	37.07	159.34	179.10	131.06	154.29	95.69	154.54
2014	144.52	24.16	10.59	43.90	41.15	63.16	114.16	108.75	101.37	86.23	85.36	27.27	61.21	19.56	67.88	108.68	150.23	68.80	127.07	130.11	183.90	156.35	76.22	197.63
2015	89.95	194.74	64.74	71.96	109.96	97.48	106.99	156.99	73.82	101.73	83.84	5.23	24.47	26.17	102.11	54.66	73.59	135.92	84.11	72.24	119.88	111.11	222.23	100.26
2016	67.93	133.10	110.65	73.98	109.99	272.61	145.09	74.24	116.50	129.86	66.01	109.35	50.50	180.39	22.59	114.46	181.35	60.89	65.72	200.81	82.53	200.18	126.96	168.65
2017	122.34	190.23	43.30	129.79	79.65	126.58	91.37	135.80	120.29	41.43	17.45	68.56	95.08	11.28	81.33	86.11	215.91	195.59	149.83	99.34	214.04	185.59	233.64	167.66
2018	163.15	69.41	40.88	183.54	196.76	114.43	89.99	200.76	86.74	154.38	15.34	147.34	68.99	73.55	48.02	95.75	117.78	133.16	166.97	242.69	216.31	70.19	179.21	53.54
2019	90.00	124.77	80.06	107.98	60.45	170.15	74.50	55.45	96.08	118.37	146.83	38.28	20.65	42.12	41.32	96.74	37.81	39.84	117.75	217.87	77.73	97.43	156.47	150.03
2020	85.21	246.07	71.51	42.22	87.81	118.36	194.49	161.77	68.45	87.41	69.29	87.71	105.53	97.77	33.09	51.32	131.22	81.35	98.39	78.28	127.54	111.63	93.84	158.62
2021	133.58	55.98	37.56	11.18	136.12	169.62	89.55	141.09	95.76	41.81	133.21	77.51	122.50	18.86	112.16	177.92	86.56	136.11	28.18	155.93	150.15	115.46	231.67	133.31
2022	126.10	96.09	55.91	110.70	138.69	91.83	91.89	110.15	74.94	84.06	141.11	207.78	50.25	44.13	87.03	154.66	80.55	156.17	106.68	177.56	183.89	108.57	223.95	102.60
2023	91.42	148.32	110.15	21.46	174.21	114.52	113.92	99.86	137.64	60.90	36.61	63.19	126.26	55.05	114.26	161.77	106.66	98.41	74.63	134.25	161.76	221.78	242.66	81.03
2024	90.99	93.09	75.23	113.15	126.85	94.05	51.94	198.25	167.08	82.10	113.90	157.01	35.14	18.55	165.74	167.07	115.96	136.03	163.58	36.92	86.83	141.38	85.75	142.16
2025	108.60	146.96	60.13	122.04	127.82	103.18	132.49	125.31	99.82	27.13	46.83	41.40	63.47	21.76	78.90	56.50	115.75	82.05	–	–	–	–	–	–

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	84.26	63.43	42.82	60.43	57.66	93.77	83.99	84.70	61.21	41.40	45.00	38.39	31.19	21.32	36.39	70.86	79.68	65.39	70.88	90.91	109.10	99.82	90.88	79.39
R80mm/hari	5.62	3.96	3.06	4.32	3.84	5.86	5.60	5.65	4.08	2.59	3.00	2.56	2.08	1.33	2.43	4.43	5.31	4.36	4.73	5.68	7.27	6.65	6.06	4.96
Reff Padimm/hari	3.93	2.78	2.14	3.02	2.69	4.10	3.92	3.95	2.86	1.81	2.10	1.79	1.46	0.93	1.70	3.10	3.72	3.05	3.31	3.98	5.09	4.66	4.24	3.47

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.