Sabtu, 21 Juli 2012

Tugas Hidrologi ke 3 (Dalam Proses)

Posted on 07.08 by indra site

No. NIM : 10.04.111.1052
L = 3,x
X = Akhir Nim
X = 2
Y = Jumlah 2 angka terakhir
Y = 5+2 = 7
A = 64 Km 2 (DAS)
ELEVASI Hilir = 10, 2
ELEVASI HULU = 28,7
Data Curah Hujan
No.
Tahun
R (mm)
Genap
1
1998
100
2
1999
80
3
2000
70
4
2001
92
5
2002
100
6
2003
110
7
2004
73
8
2005
75
9
2006
78
10
2007
93
11
2008
104
12
2009
117
13
2010
115
14
2011
180
PENYELESAIAN
Untuk Curah Hujan Rata-rata memkai Metode:
1. METODE  NORMAL
NO
TAHUN
R (mm)
(R-Rr)
(R-Rr)2
1
1998
100
0.93
0.8622
2
1999
80
-19.07
363.7194
3
2000
70
-29.07
845.1480
4
2001
92
-7.07
50.0051
5
2002
100
0.93
0.8622
6
2003
110
10.93
119.4337
7
2004
73
-26.07
679.7194
8
2005
75
-24.07
579.4337
9
2006
78
-21.07
444.0051
10
2007
93
-6.07
36.8622
11
2008
104
4.93
24.2908
12
2009
117
17.93
321.4337
13
2010
115
15.93
253.7194
14
2011
180
80.93
6549.4337
JUMLAH
1387

10268.9286
RATA-RATA (Rr)
99.07

Standart Deviasi (Sx)
28.1055



Perhitungan Curah Hujan Periode Ulang T tahun (Rt)
No.
Periode Ulang
Rr
Sx
Kt
Rt
1
2
99.07
28.1055
0.000
99.07
2
5
99.07
28.1055
0.842
122.734831
3
10
99.07
28.1055
1.282
135.101251
4
20
99.07
28.1055
1.5165
141.6919908
5
25
99.07
28.1055
1.751
148.2827305
6
50
99.07
28.1055
2.054
156.798697
7
100
99.07
28.1055
2.326
164.443393
2. METODE LOG NORMAL
Perhitungan Standart Deviasi
No.
Tahun
R(mm)
Log R
(Log R-Log Rr)
(Log R-Log Rr)2
1
1998
100
2.0000
0.0176
0.0003
2
1999
80
1.9031
-0.0793
0.0063
3
2000
70
1.8451
-0.1373
0.0189
4
2001
92
1.9638
-0.0186
0.0003
5
2002
100
2.0000
0.0176
0.0003
6
2003
110
2.0414
0.0590
0.0035
7
2004
73
1.8633
-0.1191
0.0142
8
2005
75
1.8751
-0.1073
0.0115
9
2006
78
1.8921
-0.0903
0.0082
10
2007
93
1.9685
-0.0139
0.0002
11
2008
104
2.0170
0.0346
0.0012
12
2009
117
2.0682
0.0858
0.0074
13
2010
115
2.0607
0.0783
0.0061
14
2011
180
2.2553
0.2729
0.0745
Jumlah
1387
27.7535
0.1528
Rata-Rata
99.07
1.9824


Standart Deviasi (Sx)
0.1084


Perhitungan Curah hujan Periode ulang T tahun (Rt)
No.
Periode Ulang
Kt
Log Rt
RT
1
2
0.000
1.982
96.027
2
5
0.842
2.074
118.486
3
10
1.282
2.121
132.240
4
20
1.5165
2.147
140.211
5
25
1.751
2.172
148.663
6
50
2.054
2.205
160.342
7
7
 100
2.326
2.235
171.606
3. METODE GUMBEL
Perhitungan Standart Deviasi
No.
Tahun
R(mm)
R-Rr
(R-Rr)2
1
1998
100
0.93
0.8622
2
1999
80
-19.07
363.7194
3
2000
70
-29.07
845.1480
4
2001
92
-7.07
50.0051
5
2002
100
0.93
0.8622
6
2003
110
10.93
119.4337
7
2004
73
-26.07
679.7194
8
2005
75
-24.07
579.4337
9
2006
78
-21.07
444.0051
10
2007
93
-6.07
36.8622
11
2008
104
4.93
24.2908
12
2009
117
17.93
321.4337
13
2010
115
15.93
253.7194
14
2011
180
80.93
6549.4337
Jumlah
1387

10268.9286
Rata-rata (Rr)
99.07


Standart Deviasi (Sx)
28.1055


n = 14 tahun
Y14 =
0.5100
S14 =
1.0095
Perhitungan Curah Hujan Periode Ulang T Tahun
No
Periode Ulang
Yt
(Yt-Y14)
Yt-Y14
Rt
Tahun
S14
1
2
0.3665
-0.1435
-0.1421
95.0762
2
5
1.4999
0.9899
0.9806
 126.6312
3
10
2.2502
1.7402
1.7238
147.5204
4
20
2.9606
2.4506
2.4275
167.2986
5
25
3.1985
2.6885
2.6632
173.9220
6
50
3.9019
3.3919
3.3600
193.5054
7
100
4.6001
4.0901
4.0516
212.9439
4. METODE LOG PEARSON TYPE III
Perhitungan standart Deviasi
No.
Tahun
R(mm)
Log R
(Log R-Log Rr)
(Log R-Log Rr)2
(Log R-Log Rr)3
1
1998
100
2.0000
0.0176
0.0003
0.0000
2
1999
80
1.9031
-0.0793
0.0063
-0.0005
3
2000
70
1.8451
-0.1373
0.0189
-0.0026
4
2001
92
1.9638
-0.0186
0.0003
0.0000
5
2002
100
2.0000
0.0176
0.0003
0.0000
6
2003
110
2.0414
0.0590
0.0035
0.0002
7
2004
73
1.8633
-0.1191
0.0142
-0.0017
8
2005
75
1.8751
-0.1073
0.0115
-0.0012
9
2006
78
1.8921
-0.0903
0.0082
-0.0007
10
2007
93
1.9685
-0.0139
0.0002
0.0000
11
2008
104
2.0170
0.0346
0.0012
0.0000
12
2009
117
2.0682
0.0858
0.0074
0.0006
13
2010
115
2.0607
0.0783
0.0061
0.0005
14
2011
180
2.2553
0.2729
0.0745
0.0203
Jumlah
1387
27.7535

0.1528
0.0149
Rata-Rata (Rr)
99.07
1.9824



Standart Deviasi (sx)
0.1084
Koefisien Asimetris (Cs)



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