HUJAN EFEKTIF
Curah Hujan Efektif R80
Desa/Kel. Madobag, Kec. Siberut Selatan, Kepulauan Mentawai, Prov. Sumatera Barat
GPM01D_E09905_S0155
Panjang Data
28
tahun tersedia
R80 Rata-rata
7.50
mm/hari
Reff Padi Rata-rata
5.25
mm/hari
Reff Padi Maksimum
9.20
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.
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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 219.64 | 150.36 | 121.18 | 78.64 | 116.66 | 133.05 | 237.45 | 162.81 | 242.88 | 67.49 | 206.99 | 121.85 | 124.33 | 338.97 | 362.05 | 300.68 | 197.54 | 300.34 | 148.17 | 344.37 | 267.89 | 178.78 | 290.93 | 384.37 |
| 1999 | 129.93 | 445.02 | 123.72 | 168.73 | 206.83 | 57.72 | 143.59 | 64.15 | 133.48 | 74.72 | 110.36 | 135.89 | 159.57 | 31.38 | 72.32 | 133.87 | 210.19 | 349.07 | 271.07 | 362.60 | 305.96 | 256.52 | 188.19 | 198.06 |
| 2000 | 231.37 | 73.82 | 48.31 | 47.31 | 23.97 | 91.35 | 146.21 | 218.99 | 18.88 | 201.80 | 113.77 | 158.59 | 138.85 | 221.52 | 282.34 | 81.92 | 113.88 | 377.42 | 164.57 | 280.39 | 196.32 | 394.71 | 173.81 | 360.08 |
| 2001 | 66.20 | 226.82 | 219.74 | 142.67 | 221.22 | 70.21 | 118.22 | 269.07 | 64.54 | 97.64 | 191.77 | 98.91 | 28.30 | 203.78 | 44.29 | 188.28 | 195.02 | 269.80 | 123.26 | 231.56 | 161.11 | 135.68 | 138.25 | 93.11 |
| 2002 | 42.33 | 258.98 | 124.58 | 249.06 | 65.60 | 217.19 | 130.03 | 225.02 | 198.17 | 179.18 | 171.72 | 47.55 | 173.88 | 105.28 | 73.73 | 120.80 | 293.55 | 204.33 | 229.09 | 248.10 | 332.36 | 233.25 | 100.22 | 247.62 |
| 2003 | 104.93 | 196.26 | 127.19 | 144.18 | 107.41 | 272.14 | 170.75 | 292.05 | 176.37 | 7.90 | 56.08 | 148.74 | 151.19 | 36.00 | 354.48 | 188.49 | 229.32 | 227.20 | 335.74 | 184.55 | 348.22 | 250.94 | 357.91 | 126.04 |
| 2004 | 151.37 | 230.31 | 55.56 | 169.47 | 182.89 | 61.31 | 276.93 | 216.18 | 80.45 | 160.51 | 72.83 | 70.13 | 186.31 | 123.24 | 61.28 | 130.23 | 199.04 | 243.03 | 156.76 | 301.66 | 312.72 | 167.06 | 90.90 | 258.19 |
| 2005 | 192.12 | 203.95 | 92.91 | 96.00 | 101.97 | 218.60 | 57.29 | 107.16 | 169.49 | 57.39 | 170.19 | 115.11 | 196.79 | 198.74 | 108.50 | 404.00 | 237.91 | 220.29 | 370.97 | 355.82 | 197.75 | 303.64 | 266.45 | 180.24 |
| 2006 | 248.29 | 181.65 | 97.42 | 318.21 | 90.88 | 504.14 | 86.79 | 216.59 | 32.41 | 59.38 | 94.19 | 171.37 | 131.66 | 111.51 | 95.06 | 169.95 | 62.15 | 117.29 | 18.96 | 50.74 | 122.04 | 171.32 | 248.57 | 289.78 |
| 2007 | 336.44 | 295.35 | 55.43 | 181.95 | 149.54 | 151.38 | 177.33 | 161.71 | 101.91 | 123.50 | 207.57 | 111.63 | 60.59 | 249.29 | 99.67 | 96.65 | 278.42 | 76.21 | 202.40 | 335.41 | 210.21 | 83.20 | 324.29 | 240.72 |
| 2008 | 60.58 | 214.95 | 132.24 | 207.04 | 249.62 | 209.87 | 80.00 | 312.12 | 51.22 | 357.09 | 169.30 | 287.42 | 326.64 | 193.33 | 74.04 | 253.04 | 245.15 | 255.14 | 186.17 | 321.10 | 222.85 | 155.16 | 343.96 | 256.65 |
| 2009 | 132.60 | 302.49 | 121.30 | 135.35 | 118.92 | 109.83 | 311.72 | 68.96 | 126.65 | 37.66 | 88.32 | 119.51 | 103.37 | 291.04 | 200.18 | 263.42 | 276.77 | 230.73 | 128.47 | 275.12 | 501.42 | 182.61 | 190.03 | 304.96 |
| 2010 | 181.37 | 225.32 | 184.46 | 247.31 | 326.69 | 331.86 | 238.72 | 193.53 | 262.45 | 68.48 | 265.05 | 114.47 | 247.11 | 194.47 | 214.53 | 235.50 | 184.06 | 339.94 | 295.17 | 234.34 | 317.11 | 341.10 | 141.14 | 163.49 |
| 2011 | 189.78 | 86.76 | 68.16 | 191.61 | 133.99 | 193.72 | 94.59 | 281.89 | 27.55 | 129.97 | 164.57 | 198.96 | 111.46 | 13.43 | 73.97 | 111.67 | 294.43 | 194.70 | 141.28 | 330.32 | 385.20 | 327.18 | 168.01 | 267.09 |
| 2012 | 111.90 | 77.51 | 140.76 | 266.87 | 265.53 | 121.72 | 96.31 | 92.82 | 74.46 | 222.33 | 182.50 | 51.87 | 234.89 | 163.96 | 113.34 | 206.29 | 92.36 | 240.44 | 178.49 | 219.34 | 386.57 | 339.58 | 198.14 | 374.87 |
| 2013 | 175.42 | 185.85 | 356.52 | 166.50 | 98.00 | 142.66 | 508.26 | 108.06 | 155.74 | 72.38 | 106.68 | 99.72 | 164.66 | 139.10 | 147.86 | 287.09 | 287.88 | 134.12 | 227.65 | 240.81 | 325.69 | 181.68 | 350.74 | 190.66 |
| 2014 | 239.37 | 86.65 | 95.50 | 97.31 | 141.74 | 212.21 | 200.67 | 160.46 | 152.15 | 179.62 | 184.45 | 75.82 | 173.27 | 69.75 | 205.06 | 194.46 | 194.21 | 334.63 | 225.95 | 300.60 | 273.04 | 423.79 | 124.92 | 368.65 |
| 2015 | 120.93 | 225.49 | 212.88 | 204.43 | 141.97 | 174.77 | 202.16 | 217.04 | 92.16 | 102.76 | 330.71 | 21.69 | 62.24 | 87.15 | 290.23 | 190.01 | 145.04 | 227.33 | 98.26 | 86.60 | 368.41 | 286.93 | 432.39 | 61.57 |
| 2016 | 217.59 | 167.36 | 307.13 | 147.36 | 343.36 | 305.01 | 233.66 | 160.47 | 302.81 | 219.96 | 219.48 | 249.49 | 76.71 | 233.58 | 176.23 | 322.38 | 186.83 | 382.92 | 326.85 | 338.25 | 217.40 | 296.37 | 225.50 | 276.44 |
| 2017 | 364.56 | 180.41 | 96.13 | 303.82 | 159.72 | 144.27 | 295.73 | 194.30 | 223.60 | 195.97 | 59.03 | 125.99 | 189.53 | 100.91 | 293.68 | 249.14 | 319.54 | 232.62 | 264.55 | 106.14 | 348.30 | 290.92 | 203.95 | 285.23 |
| 2018 | 128.38 | 99.55 | 124.32 | 272.25 | 218.22 | 245.22 | 170.41 | 267.74 | 123.77 | 340.27 | 77.93 | 140.97 | 166.00 | 118.79 | 163.29 | 212.19 | 179.28 | 173.73 | 371.11 | 292.68 | 429.01 | 154.55 | 357.96 | 62.24 |
| 2019 | 271.55 | 167.24 | 142.49 | 218.04 | 261.59 | 168.42 | 99.37 | 181.68 | 62.21 | 176.83 | 218.59 | 122.54 | 97.97 | 67.63 | 124.51 | 110.07 | 38.26 | 25.76 | 22.88 | 36.15 | 34.18 | 95.40 | 279.66 | 178.32 |
| 2020 | 207.78 | 267.88 | 145.77 | 102.17 | 137.92 | 244.14 | 186.03 | 269.46 | 259.77 | 162.57 | 61.80 | 215.17 | 228.87 | 350.85 | 57.84 | 220.37 | 278.20 | 180.56 | 266.56 | 210.52 | 282.62 | 384.00 | 174.76 | 203.08 |
| 2021 | 151.18 | 263.94 | 60.94 | 127.49 | 177.96 | 388.32 | 160.95 | 133.08 | 197.31 | 265.66 | 116.78 | 113.47 | 183.02 | 70.95 | 255.79 | 273.85 | 165.20 | 364.91 | 180.49 | 251.85 | 259.42 | 99.88 | 287.38 | 346.29 |
| 2022 | 104.59 | 199.61 | 119.01 | 94.03 | 190.73 | 133.69 | 61.36 | 221.83 | 209.10 | 111.28 | 256.45 | 222.95 | 81.37 | 278.43 | 163.24 | 304.88 | 283.61 | 270.49 | 349.45 | 283.01 | 458.07 | 331.52 | 486.82 | 160.05 |
| 2023 | 148.02 | 367.71 | 120.11 | 174.01 | 178.45 | 314.25 | 123.53 | 200.38 | 213.66 | 93.95 | 185.89 | 188.70 | 389.21 | 154.64 | 413.49 | 372.66 | 162.34 | 82.72 | 11.62 | 103.77 | 79.94 | 75.99 | 94.93 | 134.07 |
| 2024 | 377.42 | 243.38 | 211.12 | 221.06 | 324.29 | 254.32 | 249.66 | 371.37 | 300.76 | 309.08 | 302.19 | 192.42 | 165.47 | 41.12 | 320.44 | 302.31 | 211.33 | 190.57 | 377.84 | 47.97 | 271.87 | 315.31 | 440.45 | 246.41 |
| 2025 | 291.27 | 334.98 | 116.55 | 231.08 | 253.87 | 222.18 | 249.76 | 159.55 | 179.29 | 42.18 | 163.28 | 107.32 | 270.73 | 62.41 | 129.89 | 93.62 | 219.87 | 159.35 | – | – | – | – | – | – |
HASIL R80
Ringkasan R80 dan Hujan Efektif
Nilai ditampilkan untuk periode I dan II setiap bulan.
mm
| 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 | 110.51 | 140.20 | 87.96 | 101.19 | 106.32 | 119.34 | 95.96 | 128.08 | 64.07 | 65.87 | 86.24 | 94.29 | 94.65 | 66.59 | 73.92 | 118.97 | 158.88 | 154.30 | 126.38 | 105.19 | 197.18 | 147.00 | 139.98 | 149.65 |
| R80mm/hari | 7.37 | 8.76 | 6.28 | 7.23 | 7.09 | 7.46 | 6.40 | 8.54 | 4.27 | 4.12 | 5.75 | 6.29 | 6.31 | 4.16 | 4.93 | 7.44 | 10.59 | 10.29 | 8.43 | 6.57 | 13.15 | 9.80 | 9.33 | 9.35 |
| Reff Padimm/hari | 5.16 | 6.13 | 4.40 | 5.06 | 4.96 | 5.22 | 4.48 | 5.98 | 2.99 | 2.88 | 4.02 | 4.40 | 4.42 | 2.91 | 3.45 | 5.20 | 7.41 | 7.20 | 5.90 | 4.60 | 9.20 | 6.86 | 6.53 | 6.55 |
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.