HUJAN EFEKTIF

Curah Hujan Efektif R80

Desa/Kel. Pangkalan Siata, Kec. Pangkalan Susu, Langkat, Prov. Sumatera Utara

GPM01D_E09815_N0415

Detail Grid Data Harian

Panjang Data 28 tahun tersedia

R80 Rata-rata 5.60 mm/hari

Reff Padi Rata-rata 3.92 mm/hari

Reff Padi Maksimum 8.27 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	187.41	31.05	22.22	4.45	70.93	15.31	14.78	8.91	27.24	278.86	149.40	136.06	71.30	257.09	257.35	348.60	217.56	154.17	154.53	460.60	170.37	221.29	197.48	469.96
1999	153.93	186.53	135.53	182.85	163.88	98.75	190.33	174.22	129.94	199.89	130.15	111.91	135.36	15.10	45.26	164.85	175.20	258.56	255.16	271.54	177.81	202.00	313.42	164.02
2000	157.78	82.26	42.81	155.60	80.83	284.09	170.86	106.08	184.42	89.38	124.02	74.12	31.27	145.78	199.74	73.20	177.09	392.09	159.84	267.23	148.31	248.40	60.72	203.49
2001	232.52	125.12	68.11	66.75	128.20	160.25	67.77	178.99	246.22	84.69	169.87	95.39	77.86	113.04	137.31	214.66	200.11	115.74	193.15	445.73	205.68	275.06	162.49	312.86
2002	43.40	153.86	14.10	55.89	6.47	120.25	80.06	88.71	196.26	88.60	80.07	79.24	137.80	96.59	87.63	80.86	160.97	279.81	155.24	205.26	126.01	124.08	49.24	174.29
2003	86.37	194.13	124.59	72.66	239.43	202.93	152.42	51.03	225.93	17.68	81.95	183.04	165.69	111.65	147.96	176.78	184.31	205.65	307.11	202.13	116.35	167.38	283.57	52.20
2004	113.77	57.23	48.25	94.34	136.16	115.20	114.85	96.31	116.64	119.08	119.86	111.01	104.64	189.13	82.94	137.82	176.83	264.86	173.82	248.20	165.48	47.30	164.47	68.29
2005	209.90	74.43	19.56	53.29	15.04	105.95	138.38	34.37	105.75	138.52	130.19	77.97	184.19	101.73	83.58	235.74	157.72	112.00	184.65	251.81	149.01	262.46	234.12	198.31
2006	203.30	22.46	152.66	67.95	15.68	195.97	132.84	204.28	168.11	147.35	249.78	178.49	117.61	99.94	32.17	242.94	167.51	168.27	186.18	204.43	137.83	118.74	142.91	277.55
2007	144.82	111.99	8.43	82.96	51.28	94.07	92.96	161.30	296.16	104.93	97.60	91.20	76.74	260.74	87.67	142.60	179.33	143.13	144.67	342.02	201.57	287.85	230.98	128.83
2008	48.70	70.30	32.35	66.01	96.24	166.13	64.50	153.23	138.82	81.16	54.13	121.47	92.46	212.46	102.27	240.46	217.51	254.98	209.54	267.68	130.25	250.42	287.88	126.00
2009	227.57	37.00	18.41	93.01	180.01	210.85	126.22	68.02	233.65	105.03	51.43	86.69	112.76	85.48	26.02	330.31	181.26	139.36	182.93	181.51	235.57	187.03	155.08	71.26
2010	155.85	79.11	10.34	73.38	66.52	108.39	102.24	140.88	75.43	120.12	152.97	183.11	65.92	165.38	192.19	114.04	155.74	172.31	139.19	193.10	173.50	307.14	235.42	147.37
2011	195.48	69.40	47.44	37.40	81.84	321.17	99.21	76.98	57.06	160.37	164.96	84.49	85.70	86.63	105.85	229.80	202.96	88.55	255.07	238.94	132.55	179.04	133.26	243.05
2012	110.81	159.96	38.76	94.22	172.18	106.14	155.71	88.94	280.81	134.19	36.55	76.52	145.60	125.66	33.22	192.76	164.93	113.96	198.67	131.48	119.24	184.26	222.35	126.32
2013	85.96	184.78	48.64	157.63	114.66	8.44	108.68	125.69	59.27	133.17	184.24	67.18	110.58	91.37	235.31	133.61	268.15	111.00	261.02	313.27	133.34	117.34	185.88	352.30
2014	144.20	1.39	15.28	40.00	23.66	72.81	91.24	12.17	84.12	131.36	95.91	47.95	93.19	50.48	141.13	183.90	152.53	213.42	130.93	197.42	105.94	137.21	137.98	392.88
2015	116.44	30.84	15.37	59.46	18.92	55.33	16.30	115.91	57.63	175.62	167.82	26.82	122.99	54.13	176.30	72.50	126.14	206.28	125.51	259.08	120.51	165.59	190.14	97.20
2016	54.05	169.83	173.25	23.64	14.75	42.61	37.35	37.39	98.06	123.39	86.25	146.52	106.21	172.01	93.97	227.13	299.08	158.65	171.91	276.99	176.49	86.66	166.67	91.61
2017	116.30	151.56	47.38	83.41	43.56	74.99	98.90	117.06	75.41	150.48	51.12	150.77	154.46	72.13	269.03	190.08	218.70	159.47	382.06	106.43	183.60	144.29	235.57	215.65
2018	184.67	73.71	2.33	94.86	34.42	93.75	46.38	196.03	52.28	119.88	33.56	161.02	35.33	171.43	84.45	244.93	158.77	114.50	371.30	230.88	195.53	100.47	159.71	81.24
2019	61.70	92.93	7.17	103.91	34.73	72.90	90.94	63.87	132.15	178.73	131.01	80.66	41.52	91.25	56.07	98.84	98.19	148.69	179.42	243.88	233.75	95.66	276.38	26.64
2020	8.43	100.69	63.80	57.34	51.30	69.66	73.25	240.27	229.92	103.28	147.17	107.75	161.32	109.99	69.17	129.79	239.73	160.06	100.87	198.36	123.56	247.20	201.54	257.54
2021	338.03	105.75	83.49	2.48	108.67	147.85	48.50	105.79	53.95	118.65	173.15	135.80	241.49	37.36	231.22	239.79	97.17	169.17	38.95	377.09	160.93	263.23	133.13	282.83
2022	115.52	55.06	103.93	224.43	135.29	112.03	69.72	55.86	207.77	71.07	238.83	188.61	102.54	83.64	108.83	224.79	118.41	261.58	262.18	308.70	302.38	129.82	411.69	152.53
2023	98.56	164.65	70.94	42.19	177.58	60.50	31.47	60.76	50.26	261.12	117.44	107.63	114.12	106.12	114.11	170.40	123.57	132.82	87.84	183.03	140.79	268.06	209.95	168.73
2024	87.96	162.07	5.44	138.81	37.79	63.52	68.06	86.59	155.37	111.30	145.27	182.38	76.81	54.78	169.65	212.97	181.51	202.28	258.18	119.24	120.06	206.89	154.20	119.27
2025	100.62	202.45	20.51	83.51	97.76	80.01	125.33	96.37	121.26	59.46	149.36	79.01	163.47	16.18	160.44	127.50	244.98	179.20	–	–	–	–	–	–

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	81.10	51.44	13.34	41.75	22.71	62.91	48.08	54.89	57.52	87.82	74.88	77.68	75.65	54.65	66.55	124.80	147.25	115.49	135.88	189.07	122.34	118.18	140.93	87.46
R80mm/hari	5.41	3.22	0.95	2.98	1.51	3.93	3.21	3.66	3.83	5.49	4.99	5.18	5.04	3.42	4.44	7.80	9.82	7.70	9.06	11.82	8.16	7.88	9.40	5.47
Reff Padimm/hari	3.78	2.25	0.67	2.09	1.06	2.75	2.24	2.56	2.68	3.84	3.49	3.63	3.53	2.39	3.11	5.46	6.87	5.39	6.34	8.27	5.71	5.51	6.58	3.83

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.