intensitas curah hujan
DESCRIPTION
Intensitas Curah hujanTRANSCRIPT
UVRI - MAKASSAR
Lampiran 1
Penentuan Rumus Intensitas Curah Hujan
Dalam penentuan Intensitas curah hujan digunakan dan dibandingkan
beberapa rumus untuk digunakan yaitu :
1. Rumus Talbot (1881)
2. Rumus Shermen (1905)
3. Rumus Ishigora
4. Rumus Dr. Mononobe
I =
Dimana penulis menggunakan rumus Dr. Mononobe, adalah :
I =
Dimana:
I = Intensitas curah hujan (mm/ jam)
t = Lamanya curah hujan (menit)
R24 = Curah hujan maksimal 24 jam (mm)
Tabel L 1.1
Skripsi :RANCANGAN TEKNIS SISTEM DRAINASE TAMBANG PADA FRONT PENAMBANGAN NIKEL BLOK GC
PULAU GEE-BULI PT. MINERINA BHAKTI KAB. HALMAHERA TIMUR PROP. MALUKU UTARA
L1 - 1
UVRI - MAKASSAR
Nilai Rata – Rata Reduce Extreem (Yn)
dan Deviasi Standard Reduce Extreem (Sn)
No Yn Sn
10
15
20
.25
30
35
40
45
50
60
70
80
90
100
0,4952
0,5128
0,5236
0,5309
0,5362
0,5403
0,5436
0,5463
0,5485
0,5521
0,5548
0,5569
0,5586
0,5600
0,9497
1,0210
1,0630
1,0910
1,1112
1,1280
1,1410
1,1520
1,1610
1,1750
1,1850
1,1940
1,2010
1,2060
Sumber : Ersim Syhan “Hidrologi Untuk Insinyur”, 1979
Skripsi :RANCANGAN TEKNIS SISTEM DRAINASE TAMBANG PADA FRONT PENAMBANGAN NIKEL BLOK GC
PULAU GEE-BULI PT. MINERINA BHAKTI KAB. HALMAHERA TIMUR PROP. MALUKU UTARA
L1 - 2
UVRI - MAKASSAR
Tabel L 1.2
Hubungan Koefisien Skewness (G) Positif Dengan Koefisien K
Average Recurrance Interval In Year
Skew
Coef
(g)
1.0101 1.0526 1.1111 1.25 2 5 10 25 50 100 200 1000
Percent Change
99 95 90 80 50 20 10 4 2 1 0.5 0.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-0.667
-0.690
-0.714
-0.740
-0.769
-0.799
-0.832
-0.867
-0.905
-0.946
-0.990
-1.037
-1.087
-1.140
-1.197
-1.256
-1.318
-1.383
-1.449
-1.518
-1.588
-1.660
-1.733
-1.860
-1.880
-1.955
-2.029
-2.104
-2.178
-2.252
-2.326
-0.665
-0.688
-0.711
-0.736
-0.762
-0.790
-0.819
-0.850
-0.882
-0.914
-0.949
-0.984
-1.020
-1.056
-1.093
-1.131
-1.168
-1.206
-1.243
-1.280
-1.317
-1.353
-1.388
-1.423
-1.458
-1.481
-1.524
-1.555
-1.586
-1.616
-1.645
-0.660
-0.631
-0.702
-0.724
-0.747
-0.771
-0.795
-0.819
-0.844
-0.869
-0.895
-0.920
-0.945
-0.970
-0.994
-1.018
-1.041
-1.064
-1.086
-1.107
-1.128
-1.147
-1.166
-1.183
-1.200
-1.216
-1.231
-1.245
-1.258
-1.280
-1.282
-0.636
-0.651
-0.666
-0.681
-0.696
-0.717
-0.725
-0.739
-0.752
-0.765
-0.777
-0.788
-0.799
-0.808
-0.817
-0.825
-0.832
-0.838
-0.842
-0.848
-0.852
-0.854
-0.856
-0.857
-0.857
-0.856
-0.855
-0.853
-0.850
-0.746
-0.842
-0.036
-0.390
-0.384
-0.376
-0.368
-0.360
-0.351
-0.341
-0.330
-0.319
-0.307
-0.294
-0.282
-0.268
-0.254
-0.240
-0.225
-0.210
-0.195
-0.180
-0.164
-0.148
-0.135
-0.116
-0.099
-0.083
-0.066
-0.050
-0.033
-0.017
0
0.420
0.440
0.460
0.479
0.499
0.518
0.537
0.555
0.574
0.592
0.609
0.627
0.643
0.660
0.675
0.690
0.705
0.719
0.732
0.745
0.758
0.769
0.780
0.790
0.800
0.808
0.816
0.824
0.830
0.836
0.842
1.180
1.195
1.210
1.224
1.238
1.250
1.262
1.274
1.284
1.294
1.302
1.310
1.318
1.324
1.329
1.333
1.337
1.339
1.340
1.341
1.340
1.339
1.336
1.333
1.328
1.323
1.317
1.309
1.301
1.292
1.282
2.278
2.277
2.275
2.272
2.267
2.262
2.256
2.248
2.240
2.230
2.219
2.207
2.193
2.179
2.163
2.146
2.126
2.108
2.087
2.066
2.043
2.016
1.993
1.967
1.939
1.910
1.880
1.849
1.818
1.785
1.751
3.152
3.134
3.114
3.093
3.071
3.048
3.023
2.997
2.970
2.942
2.912
2.881
2.848
2.815
2.780
2.743
2.706
2.666
2.626
2.585
2.542
2.498
2.453
2.407
2.359
2.311
2.261
2.211
2.159
2.107
2.054
4.051
4.013
3.973
3.932
3.889
3.845
3.800
3.753
3.705
3.656
3.605
3.553
3.499
3.444
3.388
3.330
3.271
3.211
3.149
3.087
3.022
2.957
2.891
2.824
2.755
2.686
2.615
2.544
2.472
2.400
2.326
4.970
4.909
4.847
4.783
4.718
4.652
4.534
4.515
4.444
4.372
4.298
4.223
4.147
4.069
3.990
3.910
3.823
3.742
3.661
3.575
3.489
3.401
3.312
3.223
3.132
3.041
2.949
2.856
2.763
2.670
2.576
7.15
7.03
6.92
6.79
6.67
6.55
6.42
6.30
6.17
6.04
5.91
5.78
5.64
5.51
5.37
5.23
5.10
4.96
4.81
4.67
4.53
4.39
4.24
4.10
3.96
3.81
3.67
3.52
3.36
3.23
3.04
Sumber : Flood Frequensy Analisis By. Nippon Koei Co. Ltd
Skripsi :RANCANGAN TEKNIS SISTEM DRAINASE TAMBANG PADA FRONT PENAMBANGAN NIKEL BLOK GC
PULAU GEE-BULI PT. MINERINA BHAKTI KAB. HALMAHERA TIMUR PROP. MALUKU UTARA
L1 - 3
UVRI - MAKASSAR
Tabel L 1.3
Hubungan Koefisien Skewness (G) Negatif Dengan Koefisien K
Average Recurrance Interval In Year
Skew
Coef
(g)
1.0101 1.0526 1.1111 1.25 2 5 10 25 50 100 200 1000
Percent Change
99 95 90 80 50 20 10 4 2 1 0.5 0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1.0
-1.1
-1.2
-1.3
-1.4
-1.5
-1.6
-1.7
-1.8
-1.9
-2.0
-2.1
-2.2
-2.3
-2.4
-2.5
-2.6
-2.7
-2.8
-2.9
-3.0
-2.326
-2.400
-2.472
-2.544
-2.615
-2.686
-2.755
-2.824
-2.891
-2.957
-3.022
-3.087
-3.149
-3.211
-3.271
-3.330
-3.388
-3.444
-3.489
-3.553
-3.605
-3.656
-3.705
-3.753
-3.800
-3.845
-3.889
-3.932
-3.973
-4.013
-4.051
-1.645
-1.673
-1.700
-1.726
-1.750
-1.774
-1.797
-1.819
-1.839
-1.858
-1.877
-1.894
-1.901
-1.925
-1.938
-1.954
-1.962
-1.972
-1.981
-1.989
-1.996
-2.001
-2.006
-2.009
-2.011
-2.012
-2.013
-2.012
-2.010
-2.007
-2.003
-1.282
-1.292
-1.301
-1.309
-1.317
-1.323
-1.328
-1.333
-1.336
-1.339
-1.340
-1.341
-1.340
-1.339
-1.337
-1.333
-1.329
-1.324
-1.318
-1.310
-1.302
-1.294
-1.284
-1.274
-1.262
-1.250
-1.238
-1.224
-1.210
-1.195
-1.180
-0.842
-0.836
-0.830
-0.824
-0.816
-0.808
-0.800
-0.790
-0.780
-0.769
-0.758
-0.745
-0.732
-0.719
-0.705
-0.690
-0.675
-0.660
-0.643
-0.627
-0.609
-0.592
-0.574
-0.555
-0.537
-0.518
-0.499
-0.479
-0.460
-0.440
-0.420
0.000
0.017
0.033
0.050
0.066
0.083
0.099
0.116
0.132
0.148
0.168
0.180
0.195
0.210
0.225
0.240
0.254
0.268
0.282
0.294
0.307
0.319
0.330
0.341
0.351
0.360
0.368
0.376
0.384
0.390
0.396
0.842
0.846
0.850
0.853
0.855
0.856
0.857
0.857
0.856
0.854
0.852
0.848
0.844
0.836
0.832
0.825
0.817
0.808
0.799
0.788
0.777
0.765
0.752
0.739
0.725
0.711
0.696
0.681
0.666
0.651
0.636
1.282
1.270
1.258
1.245
1.231
1.216
1.200
1.183
1.166
1.147
1.128
1.107
1.086
1.064
1.041
1.018
0.994
0.979
0.945
0.920
0.895
0.889
0.844
0.819
0.795
0.771
0.747
0.724
0.702
0.681
0.660
1.751
1.716
1.680
1.643
1.606
1.567
1.528
1.488
1.448
1.407
1.366
1.324
1.282
1.240
1.198
1.157
1.116
1.075
1.035
0.996
0.959
0.923
0.888
0.855
0.823
0.793
0.764
0.738
0.712
0.683
0.666
2.054
2.000
1.945
1.890
1.884
1.777
1.720
1.663
1.606
1.549
1.492
1.485
1.379
1.324
1.270
1.217
1.166
1.146
1.089
1.023
0.980
0.939
0.900
0.864
0.830
0.798
0.768
0.740
0.714
0.690
0.667
2.326
2.252
2.178
2.104
2.029
1.955
1.880
1.806
1.733
1.660
1.588
1.518
1.449
1.383
1.318
1.256
1.197
1.140
1.087
1.067
0.990
0.946
0.905
0.867
0.832
0.799
0.769
0.740
0.714
0.690
0.667
2.576
2.482
2.388
2.294
2.201
2.108
2.016
1.926
1.837
1.749
1.664
1.581
1.501
1.424
1.351
1.282
1.216
1.155
1.097
1.044
0.995
0.949
0.907
0.869
0.833
0.800
0.769
0.741
0.714
0.690
0.667
3.09
2.95
2.81
2.67
2.53
2.40
2.27
2.14
2.02
1.90
1.79
1.68
1.58
1.48
1.39
1.31
1.24
1.17
1.11
1.05
1.00
0.95
0.91
0.87
0.83
0.80
0.77
0.74
0.71
0.69
0.67
Sumber : Flood Frequensy Analisis By. Nippon Koei Co. Ltd
Skripsi :RANCANGAN TEKNIS SISTEM DRAINASE TAMBANG PADA FRONT PENAMBANGAN NIKEL BLOK GC
PULAU GEE-BULI PT. MINERINA BHAKTI KAB. HALMAHERA TIMUR PROP. MALUKU UTARA
L1 - 4