HUJAN EFEKTIF

Curah Hujan Efektif R80

Desa/Kel. Lumban Sangkalan, Kec. Bonatua Lunasi, Toba Samosir, Prov. Sumatera Utara

GPM01D_E09915_N0255

Detail Grid Data Harian

Panjang Data 28 tahun tersedia

R80 Rata-rata 4.85 mm/hari

Reff Padi Rata-rata 3.40 mm/hari

Reff Padi Maksimum 5.92 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	167.88	31.13	31.04	46.93	72.63	31.62	20.12	52.21	51.06	82.19	99.25	65.29	86.01	145.35	159.64	271.60	104.37	80.81	132.72	118.82	158.54	97.37	137.38	181.41
1999	127.54	121.44	147.60	43.94	126.10	123.79	125.60	114.36	119.14	42.71	58.50	119.15	133.48	17.05	74.11	133.73	232.14	236.34	179.21	249.25	115.02	79.68	168.13	100.52
2000	159.02	55.80	63.16	146.98	80.91	190.85	75.95	106.02	68.70	95.06	130.74	64.83	33.21	146.70	90.44	43.39	171.97	345.00	48.23	98.55	146.58	150.44	101.03	236.11
2001	134.08	121.51	138.15	61.48	30.73	89.05	155.54	102.24	89.46	46.49	60.17	93.13	57.05	82.93	53.96	84.55	173.00	210.98	103.81	149.70	184.35	90.48	103.18	200.64
2002	63.60	185.94	36.67	77.57	18.94	157.42	100.24	142.98	69.22	222.66	57.79	48.43	38.53	110.92	49.06	79.72	126.25	136.26	119.96	234.06	166.12	155.17	85.07	112.61
2003	193.71	133.81	51.85	114.05	98.43	172.31	126.74	142.91	125.36	2.16	44.22	194.59	122.96	46.43	138.18	137.51	75.15	132.49	140.94	121.28	216.23	165.08	162.36	48.33
2004	80.81	123.55	86.60	114.34	188.22	59.94	131.76	99.39	79.77	119.51	57.82	35.31	71.51	117.64	50.48	46.09	110.85	253.23	194.99	209.24	184.47	110.59	145.20	73.76
2005	123.47	15.56	27.32	71.40	41.24	152.27	154.62	43.34	69.62	70.41	50.30	50.20	101.02	65.17	20.21	303.96	97.90	102.88	208.62	197.47	136.80	133.10	196.89	77.31
2006	201.75	21.72	81.67	112.82	25.34	99.36	132.60	101.63	141.01	106.05	163.99	63.01	27.46	39.50	51.90	97.17	143.78	182.27	183.30	160.74	147.36	128.06	100.21	176.13
2007	148.84	122.04	17.54	105.66	76.89	87.06	113.48	169.98	122.11	212.87	80.16	78.95	55.43	265.96	43.20	164.04	150.21	129.68	135.12	319.89	147.91	126.87	164.70	119.63
2008	202.35	36.67	84.25	56.46	126.70	182.22	106.10	143.73	64.49	83.92	69.39	59.24	108.47	128.83	74.88	208.17	178.86	128.06	155.90	222.21	79.54	188.78	197.22	105.47
2009	106.41	143.39	33.36	125.80	216.68	141.08	109.95	96.63	89.10	36.90	63.78	117.16	63.88	39.93	34.40	144.10	106.45	140.96	126.36	173.16	156.06	124.42	153.52	134.50
2010	99.83	122.97	14.63	84.03	55.24	104.44	60.37	162.53	164.49	109.93	109.61	110.32	144.52	140.31	110.48	74.85	101.58	191.58	149.39	166.00	165.57	150.21	111.51	225.26
2011	96.65	100.54	79.49	73.45	135.41	149.29	140.52	156.65	56.23	152.99	62.17	52.84	36.61	33.39	95.33	169.60	129.09	105.46	140.93	205.53	237.40	141.57	160.01	168.37
2012	36.71	110.07	94.57	117.47	154.79	89.11	130.30	133.81	124.82	125.48	47.41	63.63	176.08	82.64	35.53	154.65	114.63	141.22	136.76	144.84	198.59	225.16	190.56	96.86
2013	93.11	195.72	101.80	127.49	64.88	62.88	165.09	76.88	56.37	104.46	100.87	41.54	51.74	37.64	59.88	228.70	214.17	46.59	269.00	211.19	179.59	138.17	104.26	202.05
2014	161.37	28.11	13.18	43.20	24.25	51.41	92.04	84.35	92.84	96.11	71.67	81.63	55.95	20.63	74.28	199.83	164.13	105.72	116.06	200.85	157.91	166.59	85.83	193.53
2015	167.95	54.60	27.52	41.29	71.37	87.78	69.55	141.84	129.63	76.10	137.54	17.23	27.80	66.72	121.03	88.56	111.58	129.71	89.86	73.74	109.45	196.26	184.18	101.88
2016	96.21	184.34	176.92	17.75	57.05	115.16	86.28	96.06	89.94	135.30	78.28	126.44	89.41	146.70	43.77	99.54	226.10	95.72	84.91	187.76	168.58	159.96	136.08	200.82
2017	114.10	296.79	52.82	128.07	62.91	129.43	118.51	113.53	112.69	73.94	36.24	83.17	137.78	26.21	161.52	72.76	219.47	199.60	184.94	191.48	210.05	215.34	245.58	108.45
2018	145.56	161.78	71.55	150.96	158.03	122.97	36.54	178.10	86.36	149.81	40.06	133.09	79.39	110.61	39.40	168.93	160.40	123.46	205.97	205.85	200.79	95.02	209.19	95.86
2019	59.49	137.88	40.60	83.53	38.46	165.61	86.13	72.95	142.46	117.32	118.97	76.89	33.73	36.64	54.75	90.97	50.04	67.23	175.84	255.66	114.16	71.22	138.77	136.38
2020	109.25	160.84	40.27	55.07	64.79	98.46	153.86	179.84	104.42	94.79	99.93	97.69	139.18	135.09	48.86	60.33	183.10	94.30	130.14	113.98	131.16	167.69	193.27	118.85
2021	120.13	66.46	39.24	21.06	55.45	233.38	115.91	218.39	128.10	99.99	146.80	128.26	141.18	38.33	159.35	247.27	97.64	206.23	20.26	232.44	170.59	169.91	131.76	217.29
2022	113.37	94.40	130.80	80.65	151.05	98.20	157.17	109.42	90.87	88.64	146.74	245.25	39.96	82.48	108.78	154.47	117.46	180.47	162.94	180.03	222.07	101.00	176.57	184.78
2023	144.50	118.72	93.18	42.29	125.30	74.06	76.23	66.41	138.06	109.17	71.50	69.67	130.56	17.62	104.52	201.60	130.79	116.38	93.86	163.47	232.69	160.50	198.81	152.41
2024	130.75	63.83	39.90	131.42	130.46	62.71	56.90	123.25	82.29	121.77	156.72	179.47	50.36	26.66	178.99	196.18	91.66	139.06	209.68	83.19	120.36	154.34	121.73	90.24
2025	161.83	119.33	49.25	116.59	84.73	155.29	151.16	125.17	113.76	69.38	83.11	54.49	92.52	38.11	104.32	134.56	190.49	58.80	–	–	–	–	–	–

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	95.59	51.01	30.33	43.79	40.68	71.82	74.67	82.85	69.12	70.20	56.29	52.31	38.15	32.04	43.66	78.75	100.84	95.44	99.83	120.30	126.84	99.55	103.83	96.46
R80mm/hari	6.37	3.19	2.17	3.13	2.71	4.49	4.98	5.52	4.61	4.39	3.75	3.49	2.54	2.00	2.91	4.92	6.72	6.36	6.66	7.52	8.46	6.64	6.92	6.03
Reff Padimm/hari	4.46	2.23	1.52	2.19	1.90	3.14	3.48	3.87	3.23	3.07	2.63	2.44	1.78	1.40	2.04	3.45	4.71	4.45	4.66	5.26	5.92	4.65	4.85	4.22

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.