HUJAN EFEKTIF

Curah Hujan Efektif R80

Desa/Kel. Pohan Julu, Kec. Siborong-Borong, Tapanuli Utara, Prov. Sumatera Utara

GPM01D_E09905_N0225

Detail Grid Data Harian

Panjang Data 28 tahun tersedia

R80 Rata-rata 4.31 mm/hari

Reff Padi Rata-rata 3.01 mm/hari

Reff Padi Maksimum 5.22 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	97.61	55.79	37.27	56.97	100.85	22.87	37.32	35.15	80.86	37.17	64.53	68.02	91.57	130.92	157.36	296.06	113.22	62.74	86.87	166.36	199.73	71.08	220.35	155.72
1999	104.04	124.37	152.59	36.59	167.54	108.45	127.46	87.75	122.28	51.56	63.12	84.13	124.29	21.95	68.28	118.64	173.96	257.81	272.32	191.82	81.61	144.75	175.88	80.01
2000	140.12	63.45	78.94	93.40	55.20	187.13	49.94	110.12	36.81	78.82	97.49	57.48	22.29	149.03	99.34	28.34	209.21	247.77	54.44	63.01	116.73	202.55	87.87	245.80
2001	121.54	104.01	140.02	55.06	47.52	65.56	159.32	136.00	62.20	47.61	66.83	94.34	36.12	78.23	48.12	74.47	148.79	200.59	57.52	141.26	133.66	75.44	92.18	146.15
2002	17.94	136.38	24.34	135.26	27.05	192.57	82.11	151.37	141.23	180.90	72.08	18.03	40.29	83.54	36.90	87.26	149.28	68.82	106.18	179.61	175.15	168.77	104.31	99.92
2003	144.26	187.61	40.66	111.88	71.18	198.38	179.87	71.12	93.36	0.69	70.52	150.98	76.58	34.96	171.39	113.72	64.55	130.38	155.02	88.80	147.61	180.71	159.51	28.80
2004	112.65	114.23	81.20	106.46	104.87	105.75	116.57	122.09	46.94	120.82	39.66	19.61	51.44	105.70	52.93	36.80	40.71	246.18	150.22	161.42	155.59	104.30	110.50	80.21
2005	158.52	13.62	26.75	79.34	33.22	163.57	83.07	83.52	34.73	64.15	39.84	46.38	95.68	76.46	22.26	317.00	86.61	86.47	241.41	221.99	125.16	134.01	190.76	71.51
2006	178.23	56.14	100.81	96.30	26.91	123.09	111.74	126.99	77.50	106.83	115.05	67.64	27.13	36.97	43.36	81.26	130.37	192.23	114.66	205.29	160.94	85.29	186.80	95.98
2007	148.41	126.81	15.98	146.31	93.60	107.09	132.71	97.47	111.15	154.49	119.28	47.73	34.72	255.59	27.10	136.13	185.42	88.62	193.85	262.40	116.01	111.67	140.42	108.93
2008	167.05	82.01	62.42	61.29	88.12	175.29	122.70	109.51	64.82	90.48	51.04	98.88	116.03	112.30	79.40	172.55	187.01	108.30	143.39	185.81	109.61	118.21	214.90	98.10
2009	115.69	86.76	72.30	78.03	155.15	194.77	121.87	57.64	97.78	20.63	68.94	73.75	67.92	29.73	57.31	136.57	134.64	88.27	82.20	162.35	129.67	109.24	99.64	188.26
2010	154.31	91.25	33.74	115.20	75.06	140.06	67.30	151.83	186.41	95.99	134.49	98.88	110.83	137.41	104.45	78.98	76.35	192.99	120.53	164.44	147.70	181.04	121.73	149.96
2011	122.06	59.25	65.65	112.11	153.95	134.19	102.42	188.34	47.65	127.44	64.75	41.49	47.60	25.91	83.17	150.73	137.60	75.18	114.39	207.34	369.10	74.25	205.93	180.82
2012	55.94	94.14	102.46	127.37	113.05	82.49	135.33	135.34	110.94	144.73	55.13	54.42	201.40	65.41	35.75	157.00	72.24	174.28	84.90	130.26	171.94	201.51	214.77	115.88
2013	65.45	186.35	93.24	117.78	59.31	74.03	103.34	101.89	44.77	93.52	64.35	60.07	47.52	27.33	68.52	144.52	162.38	41.14	176.88	212.38	143.18	132.57	112.58	140.45
2014	122.83	26.32	10.43	45.91	8.46	80.61	93.80	110.64	95.59	85.76	72.53	47.49	56.95	23.87	74.14	168.76	175.61	64.42	94.98	170.06	151.35	152.11	88.32	194.17
2015	125.73	129.87	31.74	53.68	123.66	86.75	97.40	153.50	103.71	94.51	75.79	8.57	15.16	43.77	101.96	60.42	63.67	162.82	52.36	76.24	124.63	111.44	213.70	103.77
2016	19.56	171.50	151.50	15.39	98.42	186.71	149.87	61.36	78.60	152.42	89.02	119.66	66.28	176.94	17.73	123.56	204.72	69.26	62.68	193.28	111.19	173.24	83.76	181.84
2017	100.70	215.14	79.32	143.82	107.54	113.83	103.65	163.08	114.79	49.33	24.88	65.61	130.66	8.51	96.58	86.41	174.24	224.48	129.70	150.11	230.69	196.04	199.85	173.52
2018	123.38	125.18	29.34	183.79	199.27	99.34	46.05	198.40	98.01	156.32	17.14	148.90	72.92	86.70	30.87	137.40	156.04	107.39	218.27	202.74	216.43	59.65	190.18	75.82
2019	55.40	146.42	50.52	96.05	63.33	169.74	68.39	69.87	141.99	70.58	122.60	67.93	27.15	31.41	39.37	93.60	46.43	43.31	133.90	234.69	87.17	79.55	156.69	149.76
2020	135.27	146.52	71.89	37.78	76.53	150.40	167.37	192.52	88.52	83.48	107.68	74.77	120.96	108.57	40.59	40.36	133.73	81.02	91.74	99.66	112.18	129.43	99.76	153.51
2021	112.26	67.48	30.04	26.94	100.98	176.11	97.77	166.93	99.69	58.25	101.69	124.58	119.31	38.02	132.95	243.29	93.88	157.29	21.35	171.82	137.36	148.91	188.05	166.94
2022	76.37	144.05	88.28	96.51	139.45	80.57	130.13	111.76	60.39	107.50	181.54	184.21	56.18	48.99	111.53	166.76	63.33	188.64	123.89	150.47	175.71	115.98	187.08	161.61
2023	87.49	163.08	105.89	27.30	108.22	134.39	95.95	113.55	137.19	78.12	53.27	64.55	107.49	40.72	115.64	241.44	132.94	95.22	90.76	124.55	184.28	194.30	234.18	104.38
2024	118.75	47.97	52.14	90.65	162.18	55.69	42.76	154.46	124.51	97.47	137.52	149.09	62.57	21.95	147.96	217.21	107.03	143.31	156.64	51.36	100.08	143.99	93.81	132.48
2025	151.61	141.86	64.25	107.04	97.84	119.26	167.94	97.74	98.22	39.63	50.98	46.13	63.97	16.45	93.37	64.52	168.43	76.34	–	–	–	–	–	–

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	74.18	58.63	29.90	44.28	53.66	80.60	68.17	81.04	57.84	48.99	51.03	46.33	35.84	25.50	36.67	72.48	70.70	69.17	74.39	114.59	111.78	82.99	97.31	89.67
R80mm/hari	4.95	3.66	2.14	3.16	3.58	5.04	4.54	5.40	3.86	3.06	3.40	3.09	2.39	1.59	2.44	4.53	4.71	4.61	4.96	7.16	7.45	5.53	6.49	5.60
Reff Padimm/hari	3.46	2.56	1.49	2.21	2.50	3.53	3.18	3.78	2.70	2.14	2.38	2.16	1.67	1.12	1.71	3.17	3.30	3.23	3.47	5.01	5.22	3.87	4.54	3.92

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.