Nama : Harun Abdul
Aziz
NIM : 10.513.074
Tugas : Analisis
Hidrologi
Dosen : Hudori,
S.T., M.T
SOAL :
Data Curah Hujan
|
|||||
No.
|
Tahun
|
Pos
|
Rata-rata
|
||
I
|
II
|
III
|
|||
1
|
2001
|
127,2
|
88,8
|
58,50
|
91,50
|
2
|
2002
|
86,4
|
102
|
97
|
95,13
|
3
|
2003
|
76,8
|
107
|
82,3
|
88,70
|
4
|
2004
|
87,8
|
116
|
65,3
|
89,70
|
5
|
2005
|
82,4
|
53,5
|
104
|
79,97
|
6
|
2006
|
189,3
|
70
|
80,4
|
113,23
|
7
|
2007
|
86,2
|
95,5
|
60
|
80,57
|
8
|
2008
|
62,3
|
66,5
|
68,80
|
65,87
|
9
|
2009
|
125,1
|
107,3
|
144,8
|
125,73
|
10
|
2010
|
96
|
315,5
|
89,6
|
167,03
|
Rata-rata
|
101,95
|
112,21
|
85,07
|
99,74
|
Menghitung
curah hujan harian maksimum
A.
Metode Gumbel
Data Curah
Hujan Harian Maksimum
|
|||||
No.
|
Tahun
|
X
|
X-Ẋ
|
(X-Ẋ)2
|
X2
|
1
|
2001
|
91,50
|
-8,24
|
67,95
|
8372,25
|
2
|
2002
|
95,13
|
-4,61
|
21,25
|
9050,35
|
3
|
2003
|
88,70
|
-11,04
|
121,96
|
7867,69
|
4
|
2004
|
89,70
|
-10,04
|
100,87
|
8046,09
|
5
|
2005
|
79,97
|
-19,78
|
391,12
|
6394,67
|
6
|
2006
|
113,23
|
13,49
|
181,98
|
12821,79
|
7
|
2007
|
80,57
|
-19,18
|
367,74
|
6490,99
|
8
|
2008
|
65,87
|
-33,88
|
1147,63
|
4338,42
|
9
|
2009
|
125,73
|
25,99
|
675,48
|
15808,87
|
10
|
2010
|
167,03
|
67,29
|
4527,94
|
27900,13
|
Jumlah
|
997,43
|
0,00
|
7603,92
|
107091,25
|
|
Rerata
|
99,74
|
|
|
|
Untuk tahun-tahun berikutnya ( 5, 10, 15, 20, 25) tahun, ditunjukkan pada
tabel berikut ini :
Tabel
Data hujan maksimum metode Gumbel
PUH
|
Yt
|
Yn
|
Sn
|
k
|
Sx
|
XT
|
2
|
0,367
|
0,4952
|
0,9496
|
-0,1355
|
29,07
|
95,80
|
5
|
1,500
|
0,4952
|
0,9496
|
1,0581
|
29,07
|
130,50
|
10
|
2,250
|
0,4952
|
0,9496
|
1,8483
|
29,07
|
153,47
|
20
|
2,970
|
0,4952
|
0,9496
|
2,6064
|
29,07
|
175,50
|
25
|
3,199
|
0,4952
|
0,9496
|
2,8468
|
29,07
|
182,49
|
B.
Metode Iwai Kadoya
Tabel
Data hujan maksimum metode Iwai Kadoya
No.
|
Tahun
|
Ri
|
X=logRi
|
z=Ri+b
|
log z
|
(log z)2
|
1
|
2001
|
91,50
|
1,961
|
91,50
|
1,961
|
3,847
|
2
|
2002
|
95,13
|
1,978
|
95,13
|
1,978
|
3,914
|
3
|
2003
|
88,70
|
1,948
|
88,70
|
1,948
|
3,794
|
4
|
2004
|
89,70
|
1,953
|
89,70
|
1,953
|
3,813
|
5
|
2005
|
79,97
|
1,903
|
79,97
|
1,903
|
3,621
|
6
|
2006
|
113,23
|
2,054
|
113,23
|
2,054
|
4,219
|
7
|
2007
|
80,57
|
1,906
|
80,57
|
1,906
|
3,633
|
8
|
2008
|
65,87
|
1,819
|
65,87
|
1,819
|
3,308
|
9
|
2009
|
125,73
|
2,099
|
125,73
|
2,099
|
4,408
|
10
|
2010
|
167,03
|
2,223
|
167,03
|
2,223
|
4,941
|
Sum
|
997,43
|
19,84
|
997,43
|
19,84
|
39,50
|
|
Average
|
99,74
|
1,98
|
99,74
|
1,984
|
3,94982
|
Tabel
Perhitungan
PUH (1, 5, 10, 15, 20, 25) tahun :
PUH
|
K
|
SD
|
KxSD
|
Xt
|
antilog Xt
|
2
|
-0,148
|
0,114522
|
-0,01695
|
1,967
|
93
|
5
|
0,769
|
0,114522
|
0,088068
|
2,073
|
118
|
10
|
1,339
|
0,114522
|
0,153346
|
2,138
|
137
|
20
|
|
|
|
|
|
25
|
2,018
|
0,114522
|
0,231106
|
2,216
|
164
|
C.
Metode LOG PERSON Tipe
III
Tabel
Data hujan maksimum metode LOG PERSON III
No.
|
Tahun
|
Ri
|
X=logR
|
(X-Ẋ)3
|
(X-Ẋ)2
|
1
|
2001
|
91,50
|
1,961
|
-1,220E-05
|
5,300E-04
|
2
|
2002
|
95,13
|
1,978
|
-2,281E-07
|
3,733E-05
|
3
|
2003
|
88,70
|
1,948
|
-4,870E-05
|
1,334E-03
|
4
|
2004
|
89,70
|
1,953
|
-3,171E-05
|
1,002E-03
|
5
|
2005
|
79,97
|
1,903
|
-5,420E-04
|
6,648E-03
|
6
|
2006
|
113,23
|
2,054
|
3,362E-04
|
4,835E-03
|
7
|
2007
|
80,57
|
1,906
|
-4,798E-04
|
6,129E-03
|
8
|
2008
|
65,87
|
1,819
|
-4,556E-03
|
2,748E-02
|
9
|
2009
|
125,73
|
2,099
|
1,521E-03
|
1,323E-02
|
10
|
2010
|
167,03
|
2,223
|
1,354E-02
|
5,682E-02
|
Average
|
99,74
|
1,984
|
9,729E-04
|
1,180E-02
|
|
Sum
|
997,43
|
19,84
|
9,729E-03
|
1,180E-01
|
Tabel
Perhitungan PUH (1, 5, 10, 15, 20, 25) tahun metode Log Person III
PUH
|
K
|
SD
|
KxSD
|
Xt
|
antilog Xt
|
2
|
-0,148
|
0,114522
|
-0,01695
|
1,967
|
93
|
5
|
0,769
|
0,114522
|
0,088068
|
2,073
|
118
|
10
|
1,339
|
0,114522
|
0,153346
|
2,138
|
137
|
20
|
|
|
|
|
|
25
|
2,018
|
0,114522
|
0,231106
|
2,216
|
164
|
Perbandingan
Curah Hujan
|
||||
PUH
|
Curah Hujan
Harian Maksimum (mm/jam)
|
|||
Gumbel
|
Iwai Kadoya
|
Log Person
III
|
||
2
|
95,80
|
|
92,79
|
|
5
|
130,50
|
120,45
|
118,17
|
|
10
|
153,47
|
135,27
|
137,34
|
|
20
|
175,50
|
148,87
|
|
|
25
|
182,49
|
153,08
|
164,27
|
|
*dipakai metode Gumbel karena hasil CHH Max lebih besar
|
0 komentar:
Posting Komentar