HUJAN EFEKTIF

Curah Hujan Efektif R80

Desa/Kel. Onan Lama, Kec. Pegagan Hilir, Dairi, Prov. Sumatera Utara

GPM01D_E09835_N0285

Detail Grid Data Harian

Panjang Data 28 tahun tersedia

R80 Rata-rata 4.32 mm/hari

Reff Padi Rata-rata 3.02 mm/hari

Reff Padi Maksimum 4.98 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	88.62	93.11	58.30	75.38	72.77	57.34	50.18	47.55	90.03	28.80	98.44	56.80	53.00	165.56	164.50	267.53	80.29	80.82	103.73	159.98	181.69	63.93	125.71	215.36
1999	172.02	113.68	149.31	57.13	148.26	87.41	147.38	81.51	103.96	114.69	78.88	100.25	72.01	29.07	30.64	134.85	131.22	276.73	189.36	146.75	90.27	103.82	194.69	111.63
2000	156.41	29.76	51.00	126.56	45.78	290.18	56.02	127.20	64.52	58.65	96.10	42.12	32.53	97.58	146.40	21.96	182.36	279.76	96.94	105.38	64.19	173.58	56.47	189.82
2001	139.30	99.25	69.34	86.34	88.36	73.59	132.25	144.33	135.18	22.65	70.37	102.65	29.72	94.44	28.82	149.96	141.85	150.46	68.76	266.81	198.12	47.34	60.35	285.97
2002	59.25	182.22	21.10	159.11	72.34	110.24	90.18	131.47	151.27	108.02	75.79	14.88	43.27	84.21	26.73	74.26	180.49	81.54	121.61	213.88	131.39	111.50	106.50	105.27
2003	116.62	167.24	101.04	113.05	92.11	148.05	141.80	124.18	131.62	6.17	98.85	145.91	106.67	58.72	107.64	75.97	93.00	145.17	192.38	85.37	145.08	124.40	191.21	64.05
2004	154.45	104.67	35.20	155.67	156.31	89.40	78.70	207.87	132.13	45.64	87.75	30.39	42.75	118.92	32.57	65.16	123.98	223.08	130.32	204.88	122.99	115.48	107.07	109.37
2005	149.10	83.86	51.93	61.06	85.99	108.04	109.23	102.59	93.93	50.04	62.24	39.21	92.05	62.05	7.52	197.87	45.06	119.12	205.59	149.68	106.18	126.63	216.31	80.60
2006	150.15	34.72	119.51	124.29	40.51	104.66	114.30	123.45	122.86	107.23	85.89	129.01	54.11	44.57	14.95	124.08	154.99	121.17	153.08	165.01	152.98	90.52	190.68	77.91
2007	65.32	111.93	21.55	103.76	66.92	105.58	131.70	121.33	160.95	126.83	101.75	43.28	24.32	202.74	41.99	104.63	159.46	62.41	238.85	175.00	181.39	111.42	187.08	80.95
2008	175.97	66.68	66.21	45.21	118.78	133.99	98.27	127.25	30.10	141.62	54.45	61.38	125.77	62.60	19.54	227.65	224.19	61.92	143.82	159.11	94.94	132.27	226.07	55.19
2009	140.98	88.52	30.87	84.84	173.92	164.38	102.58	115.65	110.69	62.86	41.25	62.18	71.54	19.08	99.62	58.68	97.35	96.80	51.84	220.26	127.41	122.71	133.11	97.17
2010	91.48	162.54	63.94	43.71	82.56	115.49	43.56	151.44	173.30	52.70	108.76	59.35	61.60	117.97	99.10	75.78	83.08	136.66	166.10	81.19	99.23	207.78	124.74	178.23
2011	124.13	71.27	71.52	62.22	147.62	184.24	142.05	114.19	19.28	172.57	90.99	38.30	57.03	25.90	124.75	130.85	137.19	70.94	115.98	175.44	222.31	79.67	134.03	147.54
2012	32.37	99.26	62.81	107.26	144.96	144.01	172.05	124.56	127.23	145.03	37.78	28.33	146.06	91.23	67.80	76.37	66.52	97.08	75.78	136.90	133.67	129.56	188.91	115.28
2013	86.55	217.18	103.77	121.24	78.61	93.05	65.34	196.00	89.54	45.59	64.66	67.97	35.16	36.35	28.26	154.12	152.89	21.68	128.37	216.87	139.77	100.45	138.44	204.78
2014	146.14	36.36	17.39	59.54	52.20	83.45	109.63	74.26	75.58	112.83	100.12	19.77	52.34	11.70	73.88	114.72	122.99	88.92	105.83	181.61	130.73	109.64	106.78	176.98
2015	123.13	98.83	29.01	84.26	75.76	126.78	114.80	115.79	74.88	122.18	95.40	2.50	29.60	36.88	104.06	38.92	71.89	120.02	124.52	103.47	111.58	124.22	150.53	85.94
2016	72.49	114.34	160.82	62.65	49.62	206.94	117.70	85.38	120.85	68.97	76.50	69.81	19.60	97.99	27.62	112.83	217.88	49.51	71.89	203.17	116.56	141.17	100.81	159.54
2017	87.33	206.96	31.80	119.55	79.03	113.94	87.66	104.13	79.29	59.53	19.27	86.24	73.14	17.26	104.08	108.58	240.43	118.83	188.52	90.19	173.59	130.77	203.50	141.12
2018	132.34	86.05	18.95	149.63	147.26	125.67	119.58	100.95	107.21	122.15	11.91	104.55	43.97	81.47	7.62	98.93	103.85	103.66	202.49	166.12	175.60	89.85	160.00	57.53
2019	63.29	105.94	40.60	106.25	46.23	176.69	100.51	47.08	74.40	211.08	121.52	35.54	31.72	24.49	40.37	74.53	74.02	44.17	130.06	211.31	126.58	62.09	179.53	102.84
2020	83.31	165.51	78.19	43.66	70.84	115.62	187.26	148.05	79.84	96.65	119.82	80.88	95.32	71.43	39.95	67.35	158.53	81.03	115.19	80.81	97.80	138.14	107.50	146.68
2021	157.07	67.03	30.60	22.88	110.56	207.36	107.12	114.58	116.43	44.31	111.75	75.11	139.43	16.89	87.97	200.56	92.81	145.84	31.11	232.09	130.70	153.99	151.79	161.85
2022	98.59	129.55	125.22	77.52	157.59	70.08	94.67	83.17	110.52	51.70	140.05	148.06	44.76	61.81	58.09	148.11	43.40	181.30	98.05	184.15	176.33	105.06	169.63	145.43
2023	77.46	157.84	71.96	40.18	125.89	112.22	62.30	80.96	93.82	84.24	46.04	74.33	91.59	41.41	81.50	147.09	99.34	95.24	66.55	153.55	159.51	150.98	187.62	88.81
2024	93.82	161.24	68.57	156.83	103.57	97.26	62.92	130.56	146.35	99.52	99.27	157.31	25.88	17.70	147.28	146.95	117.10	158.00	218.15	38.52	101.44	121.24	91.32	111.92
2025	129.34	179.59	53.59	123.59	76.12	128.64	134.17	84.18	75.01	53.99	75.39	24.55	54.84	7.08	114.08	48.96	126.90	70.43	–	–	–	–	–	–

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	76.46	70.42	30.28	54.74	63.98	89.00	64.86	82.83	74.98	45.63	52.76	29.98	31.32	18.80	27.44	66.91	79.04	68.82	74.22	98.16	100.55	90.25	106.66	80.81
R80mm/hari	5.10	4.40	2.16	3.91	4.27	5.56	4.32	5.52	5.00	2.85	3.52	2.00	2.09	1.18	1.83	4.18	5.27	4.59	4.95	6.13	6.70	6.02	7.11	5.05
Reff Padimm/hari	3.57	3.08	1.51	2.74	2.99	3.89	3.03	3.87	3.50	2.00	2.46	1.40	1.46	0.82	1.28	2.93	3.69	3.21	3.46	4.29	4.69	4.21	4.98	3.54

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.