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Analisis Hidrologi ( Drainase Makro)Tabel 1 Data Curah Hujan Maksimum DAS BCD
NO TAHUNSTASIUN PENCATAT
B C D1 1990 80 125 1252 1991 79 128 1383 1992 67 134 1314 1993 102 130 1295 1994 108 144 1476 1995 118 148 1407 1996 129 160 1508 1997 130 172 1589 1998 138 169 165
10 1999 159 178 17011 2000 153 163 18512 2001 141 170 19213 2002 132 182 20514 2003 129 180 194
Tabel 2 Uji Konsistensi DataMetode "Rescaled Adjusted Partial Sums" Sta. B
UJI KONSISTENSI HUJANMETODE RAPS : STASIUN B
NO TAHUN B Sk* Dy^2 Sk**
1 1990 80 -38.9285714 108.2453 -0.73882 1991 79 -39.9285714 113.8779 -0.75783 1992 67 -51.9285714 192.6126 -0.98564 1993 102 -16.9285714 20.4698 -0.32135 1994 108 -10.9285714 8.5310 -0.20746 1995 118 -0.928571399999996 0.0616 -0.01767 1996 129 10.0714286 7.2453 0.19128 1997 130 11.0714286 8.7555 0.21019 1998 138 19.0714286 25.9800 0.3620
10 1999 159 40.0714286 114.6942 0.760511 2000 153 34.0714286 82.9187 0.646712 2001 141 22.0714286 34.7963 0.418913 2002 132 13.0714286 12.2044 0.248114 2003 129 10.0714286 7.2453 0.1912
Jumlah 1665 737.6378
Rerata 118.928571428571 52.6884
n = 14Dy = 52.6884110787172
Sk** Maks = 0.7605Sk** Min = -0.9856
Q = |Sk** maks | = 0.9856R = Sk** maks - Sk** min = 1.7461
Q/n^0.5 = 0.263406965566478 <1.07 OK! InterpolasiR/ n^0.5 = 0.466668737051295 <1.262 OK! Interpolasi
Tabel 4 Uji Konsistensi DataMetode "Rescaled Adjusted Partial Sums" Sta. D
UJI KONSISTENSI HUJANMETODE RAPS : STASIUN D
NO TAHUN D Sk* Dy^2
1 1990 125 -34.21429 83.61552 1991 138 -21.21429 32.14613 1992 131 -28.21429 56.86044 1993 129 -30.21429 65.20745 1994 147 -12.21429 10.65636 1995 140 -19.21429 26.37067 1996 150 -9.214286 6.06458 1997 158 -1.214286 0.10539 1998 165 5.785714 2.3910
10 1999 170 10.78571 8.309411 2000 185 25.78571 47.493112 2001 192 32.78571 76.778813 2002 205 45.78571 149.738014 2003 194 34.78571 86.4319
Jumlah 2229 652.1684Rerata 159.214285714286 46.5835
n = 14Dy = 46.5834548104956
Sk** Maks = 0.9829Sk** Min = -0.7345
Q = |Sk** maks | = 0.9829R = Sk** maks - Sk** min = 1.7173
Q/n^0.5 = 0.262684399763295 <1.07 OK!R/ n^0.5 = 0.458980542344922 <1.262 OK!
Tabel 3 Uji Konsistensi DataMetode "Rescaled Adjusted Partial Sums" Sta. C
UJI KONSISTENSI HUJANMETODE RAPS : STASIUN C
|Sk**| NO TAHUN C Sk*
0.7388 1 1990 125 -30.928570.7578 2 1991 128 -27.928570.9856 3 1992 134 -21.928570.3213 4 1993 130 -25.928570.2074 5 1994 144 -11.928570.0176 6 1995 148 -7.9285710.1912 7 1996 160 4.0714290.2101 8 1997 172 16.071430.3620 9 1998 169 13.071430.7605 10 1999 178 22.071430.6467 11 2000 163 7.0714290.4189 12 2001 170 14.071430.2481 13 2002 182 26.071430.1912 14 2003 180 24.07143
Jumlah 2183
Rerata 155.928571428571
n = 14Dy = 28.2394314868805
Sk** Maks = 0.5599Sk** Min = -0.6642
Q = |Sk** maks | = 0.6642R = Sk** maks - Sk** min = 1.2241
Q/n^0.5 = 0.177510792755632 <1.07R/ n^0.5 = 0.327144602193654 <1.262
UJI KONSISTENSI HUJANMETODE RAPS : STASIUN D
Sk** |Sk**|
-0.7345 0.7345-0.4554 0.4554-0.6057 0.6057-0.6486 0.6486-0.2622 0.2622-0.4125 0.4125-0.1978 0.1978-0.0261 0.02610.1242 0.12420.2315 0.23150.5535 0.55350.7038 0.70380.9829 0.98290.7467 0.7467
InterpolasiInterpolasi
UJI KONSISTENSI HUJANMETODE RAPS : STASIUN C
Dy^2 Sk** |Sk**|
68.3269 -0.6642 0.664255.7147 -0.5998 0.599834.3473 -0.4709 0.470948.0208 -0.5568 0.556810.1636 -0.2562 0.25624.4902 -0.1703 0.17031.1840 0.0874 0.0874
18.4493 0.3451 0.345112.2044 0.2807 0.280734.7963 0.4740 0.47403.5718 0.1519 0.1519
14.1432 0.3022 0.302248.5514 0.5599 0.559941.3881 0.5169 0.5169
395.3520
28.2394
OK! InterpolasiOK! Interpolasi
Tabel 5 Data Curah Hujan DaerahNO TAHUN STASIUN PENCATAT
B C D
1 1990 80 125 125
2 1991 79 128 138
3 1992 67 134 131
4 1993 102 130 129
5 1994 108 144 147
6 1995 118 148 140
7 1996 129 160 150
8 1997 130 172 158
9 1998 138 169 165
10 1999 159 178 170
11 2000 153 163 185
12 2001 141 170 192
13 2002 132 182 205
14 2003 129 180 194
Pemilihan Distribusi
NO TAHUN STASIUN
B C D
1 1990 80 125 125
2 1991 79 128 138
3 1992 67 134 131
4 1993 102 130 129
5 1994 108 144 147
6 1995 118 148 140
7 1996 129 160 150
8 1997 130 172 158
9 1998 138 169 165
10 1999 159 178 170
11 2000 153 163 185
12 2001 141 170 192
13 2002 132 182 205
14 2003 129 180 194
JUMLAH 1858.00
RERATA 142.92
n 14.00
STDV 22.75
Cs -0.17
Ck 0.12
Cv 0.16
Syarat Pemilihan Distribusi
Distribusi Cs Cs/Cv Ck
Normal 0 - 3
Log Normal ~3 3 -
Gumbel ~1.1396 - ~5.4002
Log Person 3 Tidak mempunyai Sifat khas Untuk Memperkiran Jenis Distribusi
Kesimpulan
Dari Hitungan Diatas Disimpulkan Sebagai Berikut
Cs -0.17 Sebaran Normal, log Normal, dan Gumbel tidak Mendekati
Cs/Cv 0.16 Sebaran Log Normal tidak Mendekati
Ck 0.12 Sebaran Gumbel dan Normal tidak Mendekati
Jadi Digunakan Distribusi Log Person III
Tabel 6 Perhitungan Standar Deviasi dan Koefisien Variat
Metode Log Person III
NO TAHUN Ri Log R (LogR - LogR*)
1 1990 110.00 2.04 -0.11
2 1991 115.00 2.06 -0.09
3 1992 110.67 2.04 -0.11
4 1993 120.33 2.08 -0.07
5 1994 133.00 2.12 -0.03
6 1995 135.33 2.13 -0.02
7 1996 146.33 2.17 0.02
8 1997 153.33 2.19 0.04
9 1998 157.33 2.20 0.05
10 1999 169.00 2.23 0.08
11 2000 167.00 2.22 0.07
12 2001 167.67 2.22 0.07
13 2002 173.00 2.24 0.09
14 2003 167.67 2.22 0.07
Jumlah 30.17 -0.01
R* 2.15
N= 14
Di dapat Standar Deviasi S= 0.0736129656732
Koefisien Skewness Cs= -0.0195446228754
Tabel 7 Curah Hujan Rencana Berbagai Periode Ulang
Metode Log Person III
Tr P% K Log Rt Rt
2 0.5 0.116 2.163 145.6570
5 0.2 0.857 2.218 165.1500
10 0.1 1.183 2.242 174.5326
20 0.02 1.488 2.264 183.7928
25 0.04 1.663 2.277 189.3262
50 0.02 1.806 2.288 193.9713
100 0.01 1.926 2.297 197.9570
200 0.005 2.14 2.312 205.2693
K Diliat dari tabel k minus(-0,7) hal VI-13
Tabel 8 Perhitungan Kurva IDF
No(24/t)^0.667 Periode Ulang
2 Tahun 5 Tahun 10 Tahun
1 5 43.6108942279713 264.676397398029 300.097530920996 317.146738156759
2 10 27.47314182128 166.735682246059 189.049598114421 199.789925654599
3 15 20.9659311536712 127.243140139273 144.27184500704 152.468248943661
4 20 17.3069948436889 105.036897915196 119.093784069262 125.859766444581
5 30 13.2077089955785 80.158155358097 90.8855672157704 96.0489781423648
6 45 10.079368399159 61.1721213968108 69.3586688229537 73.2990888415058
7 60 8.32033529220762 50.4964736282049 57.2543196333923 60.507064691229
8 120 5.24148278841779 31.8107850348184 36.0679612517601 38.1170622359151
9 180 4 24.276172464106 27.5250059631677 29.0887626838292
10 240 3.30192724889463 20.0395388395242 22.7213918039426 24.0122445355912
11 360 2.51984209978975 15.2930303492027 17.3396672057384 18.3247722103765
Waktu (menit)
0 50 100 150 200 250 300 350 4000
50
100
150
200
250
300
350
400
Gb. KURVA INTENSITAS DURASI FREKUENSI (IDF)
2 Tahun
5 Tahun
10 Tahun
20 Tahun
25 Tahun
menit
mm
/jam
Tabel 9
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 2 TAHUN SEKALI
No t I It I^2
1 5 264.676397398029 1323.38198699015 70053.5953395995
2 10 166.735682246059 1667.35682246059 27800.7877340587
3 15 127.243140139273 1908.6471020891 16190.8167125028
4 20 105.036897915196 2100.73795830392 11032.7499236473
5 30 80.158155358097 2404.74466074291 6425.32987041281
6 45 61.1721213968108 2752.74546285649 3742.02843618616
7 60 50.4964736282049 3029.7884176923 2549.893848884
8 120 31.8107850348184 3817.29420417821 1011.92604453142
9 180 24.276172464106 4369.71104353908 589.332549507018
10 240 20.0395388395242 4809.48932148582 401.583116900801
11 360 15.2930303492027 5505.49092571298 233.876777261635
946.938394769322 33689.3879060515 140031.920353492
Tabel 10
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 5 TAHUN SEKALI
No t I It I^2
1 5 300.097530920996 1500.48765460498 90058.5280648784
2 10 189.049598114421 1890.49598114421 35739.7505472239
3 15 144.27184500704 2164.07767510561 20814.3652617355
4 20 119.093784069262 2381.87568138525 14183.3294039361
5 30 90.8855672157704 2726.56701647311 8260.18632813232
6 45 69.3586688229537 3121.14009703292 4810.62494089217
7 60 57.2543196333923 3435.25917800354 3278.05711668265
8 120 36.0679612517601 4328.15535021121 1300.89782885847
0 50 100 150 200 250 300 350 4000
50
100
150
200
250
300
350
400
Gb. KURVA INTENSITAS DURASI FREKUENSI (IDF)
2 Tahun
5 Tahun
10 Tahun
20 Tahun
25 Tahun
menit
mm
/jam
9 180 27.5250059631677 4954.50107337018 757.625953272416
10 240 22.7213918039426 5453.13403294623 516.26164550827
11 360 17.3396672057384 6242.28019406584 300.664058805761
1073.66534000845 38197.9739343431 180020.291149926
Tabel 11
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 10 TAHUN SEKALI
No t I It I^2
1 5 317.146738156759 1585.73369078379 100582.053523472
2 10 199.789925654599 1997.89925654599 39916.0143930702
3 15 152.468248943661 2287.02373415491 23246.566935946
4 20 125.859766444581 2517.19532889161 15840.6808094844
5 30 96.0489781423648 2881.46934427095 9225.40620219248
6 45 73.2990888415058 3298.45899786776 5372.75642499496
7 60 60.507064691229 3630.42388147374 3661.10487754857
8 120 38.1170622359151 4574.04746830982 1452.91043349663
9 180 29.0887626838292 5235.97728308926 846.156114476134
10 240 24.0122445355912 5762.93868854189 576.58788763703
11 360 18.3247722103765 6596.91799573552 335.797276562185
1134.66265254041 40368.0856696652 201056.03487888
Tabel 12
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 20 TAHUN SEKALI
No t I It I^2
1 5 333.97365044368 1669.8682522184 111538.399190677
2 10 210.390216152112 2103.90216152112 44264.0430525324
3 15 160.557784615464 2408.36676923197 25778.8022006259
4 20 132.537531010989 2650.75062021978 17566.1971264889
5 30 101.145066280755 3034.35198842266 10230.3244329384
6 45 77.1881319570544 3473.46593806745 5958.00771501964
7 60 63.717399050068 3823.04394300408 4059.90694170561
8 120 40.1394461538661 4816.73353846394 1611.17513753912
9 180 30.6321304670221 5513.78348406397 938.327416948662
10 240 25.2862665701889 6068.70397684533 639.395277058651
11 360 19.2970329892636 6946.93187613489 372.375482188727
1194.86465569046 42509.9025481936 222956.953973723
Tabel 13
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 25 TAHUN SEKALI
No t I It I^2
1 5 344.028540163752 1720.14270081876 118355.636447202
2 10 216.724399758457 2167.24399758457 46969.4654506636
3 15 165.391671408219 2480.87507112328 27354.4049712042
4 20 136.527816640756 2730.55633281512 18639.8447166919
5 30 104.190224142255 3125.70672426766 10855.6028068134
6 45 79.5120223403091 3578.04100531391 6322.16169664582
7 60 65.6357282950463 3938.14369770278 4308.04882882114
8 120 41.3479178520547 4961.75014224656 1709.65031070026
9 180 31.5543669767814 5679.78605582066 995.678075305395
10 240 26.0475560355638 6251.41344853532 678.475175425838
11 360 19.8780055850773 7156.08201062782 395.135106040364
1230.83824919827 43789.7411868564 236584.103585514
I I=a/t+b a= 4366.33907943386
b= 15.1439017014558
II I=a/t^n Log a= 2.88869521757009
n= 0.66666666666667
III I=a/t^0.5+b a= 314.08542317249
b= -1.2060312268772
Tabel 14
PERBANDINGAN KECOCOKAN RUMUS-RUMUS INTENSITAS CURAH HUJAN (I2)
No t I I1 a1
1 5 264.676397398029 216.757366281147 47.9190311168826
2 10 166.735682246059 173.653998940867 6.91831669480806
3 15 127.243140139273 144.849831407956 17.6066912686823
4 20 105.036897915196 124.241728096257 19.2048301810611
5 30 80.158155358097 96.7204631161302 16.5623077580332
6 45 61.1721213968108 72.5982012458659 11.426079849055
7 60 50.4964736282049 58.106366326055 7.6098926978501
8 120 31.8107850348184 32.3088132313915 0.49802819657308
9 180 24.276172464106 22.374970682475 1.90120178163096
10 240 20.0395388395242 17.1132409997513 2.92629783977297
11 360 15.2930303492027 11.6391045133093 3.65392583589345
Jumlah 136.226603220243
Rata-Rata 12.3842366563857
I I=a/t+b a= 4950.67784579009
b= 15.1439017014558
II I=a/t^n Log a= 2.94324242513393
n= 0.66666666666667
III I=a/t^0.5+b a= 356.118871644587
b= -1.2060312268772
Tabel 15
PERBANDINGAN KECOCOKAN RUMUS-RUMUS INTENSITAS CURAH HUJAN (I5)
No t I I1 a1
1 5 300.097530920996 245.765587976053 54.3319429449433
2 10 189.049598114421 196.893779834633 7.84418172021279
3 15 144.27184500704 164.23480592597 19.9629609189292
4 20 119.093784069262 140.868759759393 21.7749756901307
5 30 90.8855672157704 109.664376786255 18.7788095704844
6 45 69.3586688229537 82.3138789758674 12.9552101529137
7 60 57.2543196333923 65.8826296438395 8.62831001044725
8 120 36.0679612517601 36.6326396046087 0.56467835284857
9 180 27.5250059631677 25.3693700014463 2.15563596172139
10 240 22.7213918039426 19.4034731489796 3.31791865496298
11 360 17.3396672057384 13.1967434985253 4.14292370721315
Jumlah 154.457547684807
Rata-Rata 14.0415952440734
I I=a/t+b a= 4834207160.19679
b= 15.1439017014558
II I=a/t^n Log a= 2.96724025194339
n= 0.66666666666667
III I=a/t^0.5+b a= 376.350775667925
b= -1.2060312268772
Tabel 16
PERBANDINGAN KECOCOKAN RUMUS-RUMUS INTENSITAS CURAH HUJAN (I10)
No t I I1 a1
1 5 317.146738156759 239983655.194635 239983338.047897
2 10 199.789925654599 192261615.464274 192261415.674348
3 15 152.468248943661 160370983.427249 160370830.959
4 20 125.859766444581 137554651.764706 137554525.904939
5 30 96.0489781423648 107084389.651701 107084293.602723
6 45 73.2990888415058 80377345.3906097 80377272.0915209
7 60 60.507064691229 64332661.0774476 64332600.5703829
8 120 38.1170622359151 35770812.4401792 35770774.323117
9 180 29.0887626838292 24772524.8806006 24772495.7918379
10 240 24.0122445355912 18946982.9690592 18946958.9568146
11 360 18.3247722103765 12886274.1424594 12886255.8176872
Jumlah 1074340761.74027
Rata-Rata 97667341.976388
I I=a/t+b a= 5509.52867641034
b= 15.1439017014558
II I=a/t^n Log a= 2.98969220647372
n= 0.66666666666667
III I=a/t^0.5+b a= 396.318887363114
b= -1.2060312268772
Tabel 17
PERBANDINGAN KECOCOKAN RUMUS-RUMUS INTENSITAS CURAH HUJAN (I20)
No t I I1 a1
1 5 333.97365044368 273.508516774195 60.4651336694848
2 10 210.390216152112 219.119878125015 8.7296619729029
3 15 160.557784615464 182.774238417327 22.2164538018625
4 20 132.537531010989 156.770546515105 24.2330155041157
5 30 101.145066280755 122.043697349108 20.8986310683524
6 45 77.1881319570544 91.6057741607573 14.4176422037029
7 60 63.717399050068 73.3197046155457 9.60230556547774
8 120 40.1394461538661 40.7678674882523 0.62842133438617
9 180 30.6321304670221 28.2331583430119 2.39897212401021
10 240 25.2862665701889 21.5938089825758 3.69245758761303
11 360 19.2970329892636 14.6864407269371 4.61059226232651
Jumlah 171.893287094235
Rata-Rata 15.6266624631123
I I=a/t+b a= 5675.40314937336
b= 15.1439017014557
II I=a/t^n Log a= 3.00257447546653
n= 0.66666666666667
III I=a/t^0.5+b a= 408.250794868762
b= -1.2060312268772
Tabel 18
PERBANDINGAN KECOCOKAN RUMUS-RUMUS INTENSITAS CURAH HUJAN (I25)
No t I I1 a1
1 5 344.028540163752 281.742992667762 62.2855474959899
2 10 216.724399758457 225.71688422743 8.99248446897244
3 15 165.391671408219 188.276992327748 22.8853209195289
4 20 136.527816640756 161.490411553771 24.9625949130151
5 30 104.190224142255 125.718046856157 21.5278227139017
6 45 79.5120223403091 94.3637341246185 14.8517117843094
7 60 65.6357282950463 75.5271288935934 9.89140059854712
8 120 41.3479178520547 41.9952589641137 0.64734111205904
9 180 31.5543669767814 29.0831693939172 2.47119758286425
10 240 26.0475560355638 22.2439302351587 3.80362580040518
11 360 19.8780055850773 15.1286029804369 4.74940260464042
Jumlah 177.068449994233
Rata-Rata 16.0971318176576
CURAH HUJAN DAERAH
110.00
115.00
110.67
120.33
133.00
135.33
146.33
153.33
157.33
169.00
167.00
167.67
173.00
167.67
Ri P (Ri-R) (Ri-R)^2 (Ri - R )^3
110.00 12.50 -32.92 1083.73 -35676.27115.00 25.00 -27.92 779.53 -21764.38110.67 37.50 -32.25 1040.28 -33552.42120.33 50.00 -22.59 510.16 -11522.76133.00 62.50 -9.92 98.41 -976.19135.33 75.00 -7.59 57.56 -436.67146.33 87.50 3.41 11.65 39.77153.33 100.00 10.41 108.44 1129.20157.33 112.50 14.41 207.74 2994.29169.00 125.00 26.08 680.17 17738.74167.00 137.50 24.08 579.85 13962.70167.67 150.00 24.75 612.40 15154.80173.00 162.50 30.08 904.81 27216.58167.67 175.00 24.75 612.40 15154.80
6674.70 -25692.62
Sebaran Normal, log Normal, dan Gumbel tidak Mendekati
Sebaran Gumbel dan Normal tidak Mendekati
(LogR-LogR*)^3
-0.00128108288628684
-0.00071217362448510
-0.00119044881865224
-0.00033735779947539
-0.00001787859219560
-0.00000642989739357
0.00000361204707991
0.00004525722746924
0.00010263959487784
0.00047248713474216
0.00038450180654955
0.00041260727921176
0.00068254362911777
0.00041260727921176
0.00
Periode Ulang
20 Tahun 25 Tahun
333.97365044368 344.02854016375
210.390216152112 216.72439975846
160.557784615464 165.39167140822
132.537531010989 136.52781664076
101.145066280755 104.19022414226
77.1881319570544 79.512022340309
63.717399050068 65.635728295046
40.1394461538661 41.347917852055
30.6321304670221 31.554366976781
25.2862665701889 26.047556035564
19.2970329892636 19.878005585077
0 50 100 150 200 250 300 350 4000
50
100
150
200
250
300
350
400
Gb. KURVA INTENSITAS DURASI FREKUENSI (IDF)
2 Tahun
5 Tahun
10 Tahun
20 Tahun
25 Tahun
menit
mm
/jam
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 2 TAHUN SEKALI
I^2t Log t Log I Logt*LogI (Logt)^2350267.976697997 0.698970004336 2.42271521467941 1.69340526410941 0.48855906696278007.877340587 1 2.22202855090343 2.22202855090343 1242862.250687542 1.1760912590557 2.10463437819964 2.47524209570868 1.38319064963220654.998472947 1.301029995664 2.02134188712744 2.62982642664484 1.69267904962192759.896112384 1.4771212547197 1.90394771442365 2.8123616368501 2.18188720114168391.279628377 1.6532125137753 1.78655354171986 2.95355267170094 2.7331116157152993.63093304 1.7781512503836 1.70326105064766 3.0286557669389 3.16182186924121431.125343771 2.0791812460476 1.50257438687168 3.1241244859751 4.32299465392106079.858911263 2.2552725051033 1.38518021416789 3.12395885162595 5.0862540722796379.9480561921 2.3802112417116 1.30188772309569 3.09876779395869 5.6654055551784195.6398141887 2.5563025007673 1.1844935503919 3.02792382500954 6.53468247543
2014024.48199829 18.355543771564 19.5386182122283 30.1898473694256 34.2505862091
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 5 TAHUN SEKALI
I^2t Log t Log I Logt*LogI (Logt)^2450292.640324392 0.698970004336 2.4772624222433 1.73153212601682 0.488559067357397.505472239 1 2.2765757584673 2.27657575846727 1312215.478926033 1.1760912590557 2.1591815857635 2.53939458973041 1.3831906496283666.588078721 1.301029995664 2.0758890946913 2.7007939798651 1.6926790496247805.58984397 1.4771212547197 1.9584949219875 2.89293447652825 2.1818872011216478.122340148 1.6532125137753 1.8411007492837 3.04373079783698 2.7331116157196683.427000959 1.7781512503836 1.7578082582115 3.12564895227348 3.1618218692156107.739463016 2.0791812460476 1.5571215944355 3.2375380169661 4.3229946539
0 50 100 150 200 250 300 350 4000
50
100
150
200
250
300
350
400
Gb. KURVA INTENSITAS DURASI FREKUENSI (IDF)
2 Tahun
5 Tahun
10 Tahun
20 Tahun
25 Tahun
menit
mm
/jam
136372.671589035 2.2552725051033 1.4397274217317 3.24697766907484 5.0862540723123902.794921985 2.3802112417116 1.3564349306595 3.22860167060611 5.6654055552108239.061170074 2.5563025007673 1.2390407579557 3.16736298811486 6.5346824754
2589161.61913057 18.355543771564 20.13863749543 31.1910910254802 34.250586209
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 10 TAHUN SEKALI
I^2t Log t Log I Logt*LogI (Logt)^2502910.267617359 0.698970004336 2.5012602490527 1.74830588712589 0.488559067399160.143930702 1 2.3005735852767 2.30057358527673 1348698.504039191 1.1760912590557 2.1831794125729 2.56761822407735 1.3831906496316813.616189687 1.301029995664 2.0998869215007 2.73201587237496 1.6926790496276762.186065774 1.4771212547197 1.982492748797 2.92838217657559 2.1818872011241774.039124773 1.6532125137753 1.8650985760932 3.0834043054218 2.7331116157219666.292652914 1.7781512503836 1.781806085021 3.16832071802121 3.1618218692174349.252019595 2.0791812460476 1.581119421245 3.28743384841423 4.3229946539152308.100605704 2.2552725051033 1.4637252485412 3.30109930806045 5.0862540723138381.093032887 2.3802112417116 1.380432757469 3.28572156775464 5.6654055552120887.019562387 2.5563025007673 1.2630385847652 3.22870869280086 6.5346824754
2891710.51484097 18.355543771564 20.402613590335 31.6315841859037 34.250586209
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 20 TAHUN SEKALI
I^2t Log t Log I Logt*LogI (Logt)^2557691.995953385 0.698970004336 2.523712203583 1.7639991298813 0.488559067442640.430525324 1 2.3230255398071 2.32302553980705 1386682.033009388 1.1760912590557 2.2056313671033 2.59402377154918 1.3831906496351323.942529778 1.301029995664 2.1223388760311 2.7612265386802 1.6926790496306909.732988153 1.4771212547197 2.0049447033273 2.96154643582233 2.1818872011268110.347175884 1.6532125137753 1.8875505306235 3.12052215761004 2.7331116157243594.416502336 1.7781512503836 1.8042580395513 3.20824368904287 3.1618218692193341.016504694 2.0791812460476 1.6035713757753 3.3341155312108 4.3229946539168898.935050759 2.2552725051033 1.4861772030715 3.35173458379852 5.0862540723153454.866494076 2.3802112417116 1.4028847119993 3.33916196232612 5.6654055552134055.173587942 2.5563025007673 1.2854905392955 3.28610268031385 6.5346824754
3206702.89032172 18.355543771564 20.649585090168 32.0437020200423 34.250586209
PERHITUNGAN a,b UNTUK INTENSITAS CURAH HUJAN PERIODE ULANG 25 TAHUN SEKALI
I^2t Log t Log I Logt*LogI (Logt)^2
591778.182236011 0.698970004336 2.5365944725759 1.77300344949506 0.488559067469694.654506636 1 2.3359078087999 2.33590780879986 1410316.074568063 1.1760912590557 2.2185136360961 2.60917449550843 1.3831906496372796.894333837 1.301029995664 2.1352211450239 2.77798675705205 1.6926790496325668.084204402 1.4771212547197 2.0178269723201 2.98057510916062 2.1818872011284497.276349062 1.6532125137753 1.9004327996163 3.14181928591478 2.7331116157258482.929729268 1.7781512503836 1.8171403085441 3.23115031176021 3.1618218692205158.037284031 2.0791812460476 1.6164536447681 3.36090010330719 4.3229946539179222.053554971 2.2552725051033 1.4990594720643 3.38078761086135 5.0862540723162834.042102201 2.3802112417116 1.4157669809921 3.36982448380156 5.6654055552142248.638174531 2.5563025007673 1.2983728082883 3.31903365675572 6.5346824754
3402696.86704301 18.355543771564 20.791290049089 32.2801630724168 34.250586209
TALBOT
a= 773.91848087811 SHERMAN
ISHIGURO
I2 a2 I3 a3
264.676397398028 0 304.92642421025 40.2500268122213
166.735682246058 0 160.55514163626 6.18054060980035
127.243140139273 0 117.76942709094 9.47371304833254
105.036897915196 0 96.165141450639 8.87175646455695
80.1581553580967 0 73.535736744626 6.62241861347133
61.1721213968106 0 57.083890306016 4.08823109079506
50.4964736282048 0 48.025767964771 2.47070566343351
31.8107850348183 0 32.219110958091 0.408325923272876
24.2761724641059 0 25.722828417257 1.44665595315151
20.0395388395242 0 21.985690487013 1.94615164748845
15.2930303492027 0 17.6773908217 2.38436047249771
0 84.1428862990216
0 7.64935329991105
TALBOT
a= 877.49050360688 SHERMAN
ISHIGURO
I2 a2 I3 a3
300.097530920996 0 345.73414145596 45.6366105349644
189.04959811442 0 182.04192763457 7.00767047984579
144.27184500704 0 133.5302831511 10.7415618559414
119.093784069262 0 109.03473748967 10.0590465795942
90.8855672157703 0 83.376883048367 7.50868416740363
69.3586688229536 0 64.723317623364 4.63535119958981
57.2543196333922 0 54.452964180024 2.80135545336861
36.0679612517601 0 36.530932648492 0.462971396731469
27.5250059631676 0 29.165265101878 1.64025913870987
22.7213918039426 0 24.92799318567 2.20660138172736
17.3396672057384 0 20.043122057234 2.70345485149598
0 95.4035670393725
0 8.67305154903387
TALBOT
a= 927.3426879867 SHERMAN
ISHIGURO
I2 a2 I3 a3
317.146738156756 2.899014362E-12 365.37606589323 48.2293277364702
199.789925654597 1.648459147E-12 192.38413385105 7.40579180355073
152.468248943659 1.165290087E-12 141.11643510212 11.3518138415398
125.85976644458 9.094947018E-13 115.22924308808 10.6305233565052
96.0489781423642 6.252776075E-13 88.113708950936 7.9352691914292
73.2990888415054 4.405364962E-13 68.400393045345 4.89869579616081
60.5070646912287 3.481659405E-13 57.546558012861 2.96050667836848
38.117062235915 1.776356839E-13 38.606336065935 0.489273830020018
29.0887626838291 1.136868377E-13 30.822208587157 1.73344590332735
24.0122445355911 0 26.344207842584 2.33196330699323
18.3247722103764 0 21.181816336247 2.85704412587031
8.327560863E-12 100.823655570235
7.570509876E-13 9.16578687002139
TALBOT
a= 976.54487799301 SHERMAN
ISHIGURO
I2 a2 I3 a3
333.973650443676 3.240074875E-12 384.76189041174 50.7882399680621
210.39021615211 2.01794137E-12 202.59149390312 7.79872224898989
160.557784615463 1.534772309E-12 148.60367551805 11.9541090974179
132.537531010988 1.278976924E-12 121.34298203933 11.1945489716624
101.145066280754 9.805489753E-13 92.78877406562 8.35629221513528
77.1881319570536 7.389644452E-13 72.029525165241 5.15860679181343
63.7173990500674 6.252776075E-13 60.599816229308 3.1175828207601
40.1394461538657 3.907985047E-13 40.654679474657 0.515233320790394
30.6321304670218 2.948752353E-13 32.457548125566 1.82541765854369
25.2862665701886 2.415845302E-13 27.741957279366 2.45569070917669
19.2970329892634 1.847411113E-13 22.305663826021 3.00863083675781
1.152855589E-11 106.17307463911
1.048050535E-12 9.65209769446452
TALBOT
a= 1005.9455538903 SHERMAN
ISHIGURO
I2 a2 I3 a3
344.028540163752 0 396.34585331252 52.3173131487675
216.724399758458 0 208.69088266243 8.03351709602893
165.391671408219 0 153.07766191591 12.3140094923039
136.527816640756 0 124.99623522589 11.53158141487
104.190224142256 0 95.582350412889 8.60787372936628
79.5120223403094 0 74.198106222949 5.31391611736046
65.6357282950465 0 62.424284921472 3.21144337357402
41.3479178520549 1.776356839E-13 41.878663217624 0.530745365569295
31.5543669767816 1.634248292E-13 33.434742184297 1.88037520751602
26.047556035564 1.456612608E-13 28.577179820702 2.52962378513815
19.8780055850774 1.207922651E-13 22.977216775201 3.09921119012348
6.075140391E-13 109.369609920618
5.522854901E-14 9.94269181096528
(Ri - R)^4
1174462.91607661.411082177.30260260.699683.823312.87135.7411758.6943157.64462626.33336221.85375030.71818674.62375030.715185164.58
0 50 100 150 200 250 300 350 4000
50
100
150
200
250
300
350
400
Gb. KURVA INTENSITAS DURASI FREKUENSI (IDF)
2 Tahun
5 Tahun
10 Tahun
20 Tahun
25 Tahun
menit
mm
/jam
(t)^0.5 I*(t)^0.5 I^2(t)^0.5
2.2360679775 591.8344166 156644.601
3.16227766017 527.2645231 87913.81
3.87298334621 492.8105627 62706.7635
4.472135955 469.7392878 49339.9576
5.47722557505 439.0442986 35192.9811
6.7082039325 410.3550653 25102.2899
7.74596669241 391.1440028 19751.3928
10.9544511501 348.4696907 11085.0944
13.416407865 325.6990312 7906.72585
15.4919333848 310.4512008 6221.2989
18.973665961 290.1648494 4437.49985
92.5113194998 4596.976929 466302.415
(t)^0.5 I*(t)^0.5 I^2(t)^0.52.2360679775 671.038479 201376.9913.16227766017 597.827321 113019.0153.87298334621 558.762453 80613.694.472135955 532.603594 63429.77745.47722557505 497.800753 45242.90386.7082039325 465.272095 32270.65317.74596669241 443.490053 25391.721210.9544511501 395.10472 14250.6217
0 50 100 150 200 250 300 350 4000
50
100
150
200
250
300
350
400
Gb. KURVA INTENSITAS DURASI FREKUENSI (IDF)
2 Tahun
5 Tahun
10 Tahun
20 Tahun
25 Tahun
menit
mm
/jam
13.416407865 369.286706 10164.618815.4919333848 351.998288 7997.8910218.973665961 328.997053 5704.69942
92.5113194998 5212.18152 599462.582
(t)^0.5 I*(t)^0.5 I^2(t)^0.52.2360679775 709.161665 224908.3093.16227766017 631.791219 126225.5213.87298334621 590.506989 90033.56664.472135955 562.861987 70841.67825.47722557505 526.08192 50529.63086.7082039325 491.705236 36041.54587.74596669241 468.685708 28358.796410.9544511501 417.551496 15915.836413.416407865 390.266704 11352.375515.4919333848 371.996093 8932.4611518.973665961 347.688107 6371.30536
92.5113194998 5508.29712 669511.026
(t)^0.5 I*(t)^0.5 I^2(t)^0.52.2360679775 746.787785 249407.4433.16227766017 665.31228 139975.1943.87298334621 621.837626 99840.87164.472135955 592.725858 78558.42185.47722557505 553.994344 56033.79466.7082039325 517.79373 39967.53087.74596669241 493.552851 31447.903910.9544511501 439.705602 17649.539313.416407865 410.973156 12588.983315.4919333848 391.733157 9905.4690418.973665961 366.135458 7065.32801
92.5113194998 5800.55185 742440.48
(t)^0.5 I*(t)^0.5 I^2(t)^0.5
2.2360679775 769.271202 264651.2493.16227766017 685.342728 148530.4913.87298334621 640.559189 105943.1554.472135955 610.570958 83359.91985.47722557505 570.67336 59458.58536.7082039325 533.382861 42410.357.74596669241 508.412165 33370.002710.9544511501 452.943746 18728.280813.416407865 423.346257 13358.423215.4919333848 403.527003 10510.892218.973665961 377.158638 7497.16151
92.5113194998 5975.18811 787818.51