REKAPITULASI DATA KLIMATOLOGI

Stasiun : Mayoa Pada DAS : S. Kodina No. Kad : 112

Bulan : Pebruari No. Stasiun : 07
Tahun : 2002 - 2015 Lokasi Stasiun : 2 08'27"LS / 120 44'55"BT
Kecamatan : Pamona Selatan Tinggi muka laut :
Kabupaten : Poso Tahun Pendirian : 1984
Propinsi : Sulawesi Tengah Dibangun oleh/pemilik : IRIGASI

RH (%)

Thn Jan Feb Mar Apr May Jun Jul Aug

2002 93.68 93.18 95.90 95.53 95.06 96.77 94.19 93.74
2003 97.68 98.07 98.06 97.57 96.13 94.17 95.87 95.81
2004 95.16 93.86 92.77 96.73 92.90 95.83 96.68 94.29
2005 91.19 91.83 96.58 96.20 96.32 95.37 95.00 92.81
2006 88.74 91.43 93.55 93.37 94.90 95.17 91.94 92.26
2007 92.10 94.68 92.45 96.17 94.90 96.40 96.39 94.13
2008 93.32 94.75 95.65 95.90 96.23 96.90 124.26 95.16
2009 90.48 92.14 94.03 93.90 93.00 94.73 92.00 87.58
2010 93.10 98.68 98.23 98.27 98.74 99.00 99.32 98.68
2011 90.94 92.18 92.84 92.20 95.23 95.33 93.61 94.63
2012 94.55 97.00 97.39 96.90 97.00 99.17 98.97 99.48
2013 79.55 81.86 81.81 89.53 87.52 89.37 90.29 88.45
2014 88.23 88.39 90.45 91.77 92.61 96.07 91.42 90.68
2015 94.94 94.75 90.87 94.03 94.42 93.53 89.26 87.03
Rerata 91.69 93.06 93.61 94.86 94.64 95.56 96.37 93.19

Temperature (oC)

Tahun Jan Feb Mar Apr May Jun Jul Aug

2002 24.76 25.54 25.85 25.47 26.61 24.54 26.06 26.23
2003 25.85 25.17 26.21 24.91 24.89 26.37 25.49 25.90
2004 25.54 25.37 25.35 25.10 26.01 25.21 23.85 26.10
2005 25.86 25.08 27.18 25.26 23.91 24.84 24.86 25.34
2006 26.85 26.63 26.04 25.99 25.90 24.84 26.01 25.79
2007 25.84 27.25 25.89 24.68 25.48 25.02 23.60 24.75
2008 25.95 25.56 25.52 25.19 24.52 24.88 23.60 23.48
2009
2010
2011
2012
2013 25.00 24.43 24.01 23.67 23.51 23.80 23.77 24.14
2014 25.31 25.30 24.39 25.31 23.58 22.82 23.64 23.45
2015 25.31 25.16 24.38 25.77 25.34 23.65 23.84 23.64
Rerata 25.63 25.55 25.48 25.13 24.97 24.60 24.47 24.88

Penguapan Pan "A" (mm)

 Tahun Jan Feb Mar Apr May Jun Jul Aug
2002 3.26 3.49 3.89 3.34 3.20 1.99 3.86 4.24
2003 3.27 2.98 3.83 2.64 3.16 3.27 3.06 3.44
2004 3.38 2.49 3.34 2.91 3.74 3.40 2.39 4.31
2005 4.64 4.28 4.92 3.31 1.92 3.16 3.01 3.29
2006 3.81 3.87 4.26 3.69 2.86 3.61 3.21
2007 4.73 5.26 4.35 4.05 3.46 3.27 3.91 3.05
2008 3.94 3.69 3.56 3.43 2.44 2.75 1.86 1.71
2009 3.84 3.65 3.80 4.18 3.84 3.52 3.47 3.85
2010 4.02 5.53 4.46 4.17 3.56 2.58 2.53 2.95
2011 3.87 3.54 3.81 3.74 3.40 3.18 3.05 3.25
2012 4.22 4.31 4.33 4.40 3.63 2.79 2.81 3.13
2013 4.37 5.91 4.32 3.93 2.91 5.40 3.98 4.54
2014 2.85 3.43 3.85 3.61 2.50 1.77 2.50 2.42
2015 3.80 4.25 3.79 3.82 2.91 1.95 3.20 3.65
Rerata 3.86 4.04 4.01 3.70 3.17 2.99 3.09 3.36

Kecepatan Angin (km/hari)

Tahun Jan Feb Mar Apr May Jun Jul Aug

2002 57.84 57.79 53.45 44.63 43.29 34.47 44.65 51.42
2003 42.58 47.50 44.58 39.77 36.16 37.30 42.97 46.06
2004 45.48 44.24 49.58 43.07 36.84 39.70 40.58 48.52
2005 49.10 45.83 56.13 39.53 29.23 26.37 31.52 28.48
2006 28.48 27.58 24.80 18.13 17.90 24.90 26.87
2007 12.16 13.76 13.45 13.74 13.50 12.99 15.79 13.78
2008 38.39 43.21 37.29 26.53 22.42 22.27 20.39 21.42
2009 16.97 21.04 21.97 16.63 18.68 17.43 26.87 44.24
2010 14.77 16.11 16.00 15.27 16.10 15.55 19.10
2011 15.74 14.32 13.97 14.50 16.29 15.40 16.93 19.81
2012 19.26 20.48 24.71 29.10 27.55 31.33 26.87 11.00
2013 18.04 13.86 19.59 29.37 37.53 32.52 25.07 30.52
2014 19.13 17.36 15.55 18.20 19.06 28.33 27.16 17.65
2015 17.13 17.21 13.32 16.97 14.35 11.10 15.10 16.82
Rerata 28.20 28.66 29.08 27.45 24.88 24.52 26.74 28.26

Penyinaran Matahari (%)

Tahun Jan Feb Mar Apr May Jun Jul Aug

2002 46.32 34.50 44.23 48.77 43.81 9.83 29.87 41.52
2003 34.45 35.39 38.42 33.30 34.19 15.87 29.52 45.87
2004 40.87 35.48 43.45 42.70 45.29 11.70 22.16 44.48
2005 45.16 45.66 55.87 35.00 20.23 42.77 33.87 34.65
2006 35.74 40.04 36.77 46.87 35.00 31.34 40.35 31.47
2007 30.16 40.14 39.03 47.60 44.10 38.77 20.61 29.61
2008 45.17 52.90 44.03 37.60 28.71 37.00 18.65 23.52
2009 48.48 41.07 39.71 42.77 56.00 37.57 46.16 44.55
2010 41.90 59.11 46.03 51.40 55.61 36.87 36.00 38.23
2011 40.74 37.50 34.16 49.37 38.32 30.57 38.10 35.77
 2012 40.55 46.90 41.42 54.50 47.81 37.45 30.61 36.00
2013 47.64 46.43 43.77 39.00 47.79 44.53 33.40 42.39
2014 33.79 46.87 47.67 49.28 47.28 34.04 36.47 37.53
2015 40.42 38.43 47.42 51.77 47.48 31.87 44.84 47.94
Rerata 40.81 42.89 43.00 44.99 42.26 31.44 32.90 38.11
a No. Kad : 112

S / 120 44'55"BT

Sep Oct Nov Dec

94.37 93.68 95.33 96.77
95.07 93.65 94.67 95.68
94.90 85.94 89.50 93.45
83.37 85.52 91.00 91.19
89.81 92.07 94.35
83.57 90.48 95.40 94.32
93.73 92.71 94.73 93.68
84.20 87.35 90.47 92.58
94.97 91.52 93.93 93.77
94.90 93.23 96.87 97.40
85.74 91.10 95.23 93.84
87.90 85.06 88.37 90.06
85.97 74.48 87.83 91.84
80.53 78.42 87.77 90.84
89.17 88.07 92.37 93.56

Sep Oct Nov Dec

27.41 27.65 27.65 26.98
26.28 26.72 26.34 25.43
26.24 27.29 27.11 25.79
27.01 27.24 26.34 26.01
- 27.60 26.82 25.65
23.12 27.36 25.55 25.74
25.30 26.09 26.01

25.99 24.22 24.94 24.73

24.73 25.11 24.59 25.60
25.69 26.99 25.32 25.91
24.54 24.91 24.93 24.83
25.63 26.47 25.96 25.67
Sep Oct Nov Dec
5.21 6.21 4.92 3.87
3.69 4.46 3.57 2.90
4.29 5.44 5.00 3.81
4.56 4.36 3.75 3.45
5.21 4.93 4.14
5.04 4.55 3.44 4.10
3.35 3.67 4.14 4.06
5.60 4.82 4.72 4.49
3.65 4.24 3.90 4.22
3.96 4.53 4.18 3.91
4.49 4.39 4.46 4.07
4.30 5.02 4.96 3.53
4.26 5.89 4.30 3.02
5.24 5.79 3.56 2.95
4.44 4.90 4.27 3.75

Sep Oct Nov Dec

55.80 51.81 54.03 45.45
43.07 49.29 43.77 34.84
50.30 47.23 51.83 47.06
32.30 30.45 34.07 29.23
28.35 21.00 16.10
14.75 14.55 17.14 13.45
36.23 24.73 28.83 17.65
30.10 24.55 16.07 14.90
19.03 17.90 16.73 15.19
20.13 24.77 31.47 32.10
21.10 16.19 11.64 15.83
21.25 18.80 12.39 14.17
21.07 29.58 18.20 11.47
25.03 27.94 18.20 10.37
30.01 29.01 26.81 22.70

Sep Oct Nov Dec

51.10 60.19 57.33 53.35
46.33 49.90 47.13 33.29
47.63 64.71 55.50 38.39
50.67 49.42 44.43 31.52
54.94 59.30 36.39
46.27
42.23 45.68
64.27 51.74 45.10 41.80
52.97 48.06 48.93 38.10
39.73 55.77 45.33 31.87
44.10 52.71 53.33 46.87
44.13 54.68 51.20 42.72
55.17 61.70 55.02 45.04
52.57 58.81 54.87 44.74
49.01 54.49 51.46 40.34
Tabel Data Klimatologi Sta. Mayasari - Mayoa
Kelembap
Kecepatan Penyinaran
Temperatur an
B U LAN angin ,U Matahari
Udara (C) relatif ,RH
(Km/hr) (%)
(%)
Jan 25.63 28.20 91.69 40.81
Peb 25.55 28.66 93.06 42.89
Mar 25.48 29.08 93.61 43.00
Apr 25.13 27.45 94.86 44.99
Mei 24.97 24.88 94.64 42.26
Jun 24.60 24.52 95.56 31.44
Jul 24.47 26.74 96.37 32.90
Agt 24.88 28.26 93.19 38.11
Sep 25.63 30.01 89.17 49.01
Okt 26.47 29.01 88.07 54.49
Nov 25.96 26.81 92.37 51.46
Des 25.67 22.70 93.56 40.34
Rerata 25.37 27.19 93.01 42.64

Perhitungan Evaporasi Metode Penman Modifikasi

URAIAN KET
Jan Peb
Temperatur Udara (C) data 25.63 25.55
Kecepata angin (U) Km/hr data 28.20 28.66
f(u) = 0,27 (1+U/100) hitung 0.35 0.35
Penyinaran Matahari (%) data 40.81 42.89
Kelembapan relatif ,RH (%) data 91.69 93.06
Tekanan uap jenuh ,ea (m bar) tabel 4,2 32.88 32.75
Tekanan uap aktual ,ed = ea x Rh/100 hitung 30.15 30.48
ea - ed hitung 2.73 2.27
Faktor W tabel 4.2 0.754 0.750
(1 - W) hitung 0.25 0.25
Radiasi ekstra matahari, Ra (mm/hr) tabel 4.3 15.30 15.70
Maksimum Penyinaran matahari, N tabel 4.3 15.70 15.70
n=N x penyinararan Matahari hitung 6.41 6.73
Rasio Keawanan, n/N hitung 0.41 0.43
Radiasi diterima matahari Rs=(0,25 + 0,5n/N)Ra hitung 6.95 7.29
Rns= (1-a) Rs, a=0,25 hitung 5.21 5.47
efek Temperatur,f(T) tabel 4.2 15.81 15.79
F(ed) = 0,34-0,044 (ed)^0,5 hitung 0.10 0.10
f(n/N) = 0,1 + 0,9 n/N hitung 0.47 0.49
Rn1 = f(T). f(ed). f(n/N) hitung 0.73 0.75
Energi sisa, Rn = Rns - Rn1 hitung 4.48 4.72
U (m/det) konversi 0.33 0.33
U siang / U malam 1.00 1.00
Faktor Koreksi ,C Tabel 4.1 1.10 1.10
ETo = C.(W.Rn + (1-W).f(u).(ed - ea)), mm/hr hitung 3.97 4.11
Eto,koversi (mm/bulan) konversi 123.21 115.20

Parameter Klimat
Sta. Mayoa (2002 -
120.00

100.00

80.00

60.00

40.00

20.00

0.00
Ja n Peb Mar Apr Mei Jun Jul
 B U LAN
Mar Apr Mei Jun Jul Agt Sep Okt Nov
25.48 25.13 24.97 24.60 24.47 24.88 25.63 26.47 25.96
29.08 27.45 24.88 24.52 26.74 28.26 30.01 29.01 26.81
0.35 0.34 0.34 0.34 0.34 0.35 0.35 0.35 0.34
43.00 44.99 42.26 31.44 32.90 38.11 49.01 54.49 51.46
93.61 94.86 94.64 95.56 96.37 93.19 89.17 88.07 92.37
32.52 31.82 31.61 30.94 30.61 31.56 32.93 34.56 33.60
30.44 30.18 29.92 29.57 29.50 29.41 29.36 30.44 31.04
2.08 1.64 1.69 1.37 1.11 2.15 3.57 4.12 2.56
0.749 0.746 0.744 0.741 0.740 0.744 0.751 0.760 0.755
0.25 0.25 0.26 0.26 0.26 0.26 0.25 0.24 0.25
15.70 15.10 14.10 13.50 13.70 14.50 15.20 15.50 15.30
15.70 15.70 15.70 15.70 15.70 15.70 15.70 15.70 15.70
6.75 7.06 6.63 4.94 5.17 5.98 7.70 8.55 8.08
0.43 0.45 0.42 0.31 0.33 0.38 0.49 0.54 0.51
7.30 7.17 6.50 5.50 5.68 6.39 7.52 8.10 7.76
5.48 5.38 4.88 4.12 4.26 4.79 5.64 6.07 5.82
 15.78 15.68 15.65 15.55 15.51 15.62 15.81 15.98 15.90
0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.09
0.49 0.50 0.48 0.38 0.40 0.44 0.54 0.59 0.56
0.75 0.78 0.75 0.60 0.62 0.70 0.87 0.92 0.85
4.73 4.60 4.13 3.52 3.64 4.09 4.77 5.16 4.97
0.34 0.32 0.29 0.28 0.31 0.33 0.35 0.34 0.31
1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
1.00 0.90 0.90 0.90 0.90 1.00 1.10 1.10 1.10
3.72 3.22 2.90 2.46 2.51 3.23 4.29 4.69 4.37
115.42 96.53 89.84 73.71 77.88 100.22 132.91 145.37 130.97

rameter Klimatologi
Mayoa (2002 - 2015)

i Jun Jul Agt Sep Okt Nov Des

Temperatur Uda ra (C)
Kecepata n angi n ,U
(Km/hr)
Kelemba pa n rel atif ,RH
(%)
Penyi na ra n Mata ha ri (%)
 Des
25.67
22.70
0.33
40.34
93.56
33.05
30.92
2.13
0.752
0.25
15.10
15.70
6.33
0.40
6.82
5.12
15.82
0.10
0.46
0.70
4.42
0.26
1.00
1.10
3.85
119.24
 PERHITUNGAN RUN-OFF DENGAN METODE FJ M
NO ITEM Satuan Ket Jan Feb Mar Apr
I. DATA METEOROLOGI:
1. Hujan bulanan rata-rata (P) mm data 165.00 200.00 280.00 90.00
2. Hari hujan rata-rata (n) data 5 4 4 8
II. EVAPOTRANSPIRASI POTENSIAL (Et) mm/hari data 3.97 4.11 3.72 3.22
III. LIMIT EVAPOTRANSPIRASI:
3. Exposed Surface (m) % hitung 20 20 20 20
4. E/Et = (m/20) x (18-n) % hitung 0.13 0.14 0.14 0.10
5. E mm hitung 0.517 0.576 0.521 0.322
6. E1 = Et - E mm hitung 3.458 3.538 3.202 2.896
IV. WATER BALANCE:
7. WATER SURPLUS mm hitung 161.54 196.46 276.80 87.10
V. RUN-OFF and Ground Water Storage:
8. Infiltrasi (i) mm 64.62 78.58 110.72 34.84
9. 0.5 x (1+k) x i mm 51.69 62.87 88.58 27.87
10. k x Vn-1 mm 0.00 31.02 56.33 86.94
11.Vn mm 51.69 93.88 144.91 114.82
12. k x Vn-1 mm 54.93 63.97 76.11 98.81
13. Vn (Lanjutan) mm 106.62 126.84 164.68 126.68
14. k x Vn-1 mm 55.05 64.05 76.15 98.83
15. Vn (Lanjutan) mm 106.74 126.91 164.72 126.71
16. k x Vn-1 mm 55.05 64.05 76.15 98.83
17. Vn (Lanjutan) mm 106.74 126.91 164.72 126.71
18. V'n = Vn - Vn-1 mm 14.99 20.17 37.81 -38.02
19. Base Flow (Qg) mm 49.62 58.41 72.91 72.86
20. Direct Run-Off (Qi) mm 96.93 117.88 166.08 52.26
21. Run-Of mm 146.55 176.29 238.99 125.12
N METODE FJ MOCK tahun 2004
Mei Jun Jul Agt Sept Okt Nov Des

85.00 79.00 75.00 85.00 84.00 123.00 120.00 130.00

8 7 8 6 2 2 4 6
2.90 2.46 2.51 3.23 4.29 4.69 4.37 3.85

20 20 30 40 50 50 40 30
0.10 0.11 0.15 0.24 0.40 0.40 0.28 0.18
0.290 0.270 0.377 0.776 1.715 1.876 1.222 0.692
2.608 2.187 2.135 2.457 2.572 2.814 3.143 3.154

82.39 76.81 72.86 82.54 81.43 120.19 116.86 126.85

32.96 30.73 29.15 33.02 32.57 48.07 46.74 50.74

26.37 24.58 23.32 26.41 26.06 38.46 37.39 40.59
68.89 57.15 49.04 43.41 41.90 40.77 47.54 50.96
95.26 81.73 72.36 69.83 67.95 79.23 84.93 91.55
76.01 61.42 51.60 44.95 42.82 41.33 47.87 51.16
102.37 86.00 74.92 71.37 68.88 79.79 85.27 91.75
76.02 61.43 51.61 44.96 42.82 41.33 47.87 51.16
102.39 86.01 74.93 71.37 68.88 79.79 85.27 91.75
76.02 61.43 51.61 44.96 42.82 41.33 47.87 51.16
102.39 86.01 74.93 71.37 68.88 79.79 85.27 91.75
-24.32 -16.38 -11.09 -3.56 -2.49 10.91 5.48 6.48
57.27 47.10 40.23 36.57 35.06 37.17 41.26 44.25
49.44 46.09 43.72 49.53 48.86 72.11 70.11 76.11
106.71 93.19 83.95 86.10 83.92 109.28 111.38 120.36
 Qi Qg Rata-rata Qi Rata-rata Qg 1 171.202152 160.7541
60.12888 111.0733 #VALUE! #VALUE! 2 229.595584 101.032
136.7069 92.88873 #VALUE! #VALUE! 3 163.930854 157.4494
79.38533 84.54553 #VALUE! #VALUE! 4 228.737938 112.7808
147.7287 81.00919 #VALUE! #VALUE! 5 130.581603 68.91314
54.95199 75.62961 #VALUE! #VALUE! 6 62.6090966 38.77521
8.739173 53.86992 #VALUE! #VALUE! 7 119.727492 106.4963
76.0944 43.6331 #VALUE! #VALUE! 8 63.9148645 117.7249
24.34331 39.57155 #VALUE! #VALUE! 9 247.077919 95.7639
194.1964 52.88155 #VALUE! #VALUE! 10 275.801821 163.7778
192.5118 83.29002 #VALUE! #VALUE! 11 321.897752 173.7247
217.2843 104.6135 #VALUE! #VALUE! 12 346.805664 150.6627
225.0585 121.7471 #VALUE! #VALUE!

6034 6034000000
6034000
911134000
206.3462 165.8409
149.6544 145.8438
143.4967 172.4151
179.7268 192.3293
145.4548 151.4316
94.63585 106.0622
76.06119 120.2224
119.9267 138.0071
179.9141 167.109
262.4922 231.0823
255.3144 196.0986
216.2159 186.5901
 DEBIT ANDALAN
Data Hidrologi
Data Bulanan Sta.Palu Periode 1981-2003
Tahun Jan Feb Mar Apr May Jun Jul
1981 25 29 70 103 116 13 115
1982 32 83 29 257 60 40 28
1983 63 1 15 52 79 65 130
1984 57 105 38 63 180 119 161
1985 48 63 37 23 49 31 16
1986 46 0 52 20 16 2 42
1987 91 15 12 187 196 5 25
1988 101 142 47 110 111 79 244
1989 101 142 47 110 111 79 244
1990 79 38 30 60 35 14 47
1991 65 15 44 105 194 0 13
1992 47 33 7 10 116 107 249
1993 65 73 37 113 289 51 56
1994 62 79 186 40 219 185 134
1995 69 85 165 48 74 74 164
1996 25 145 80 113 100 92 56
1997 30 40 43 9 39 57 19
1998 40 0 16 62 159 107 327
1999 40 42 87 44 135 61 116
2000 71 55 36 14 13 160 98
2001 42 89 32 45 55 53 3
2002 110 10 44 0 146 127 135
2003 43 93 102 0 22 63 23

METODE SMEC Type I

Perhitungan Debit Andalan

A= 229.61 km
Tipe I : jenis tanah tidak porous
Q = A . ( 0,210 . MMR 8,50 ) . 10-3
untuk MMR < 250 mm
Q = A . ( 0,336 . MMR 47,50 ) . 10-3
untuk MMR > 250 mm

No Tahun Jan Feb Mar Apr May Jun

 1 1981 0.80 0.99 2.97 4.56 5.18 0.22
2 1982 1.13 3.59 0.99 11.98 2.48 1.52
3 1983 2.63 -0.36 0.31 2.10 3.40 2.72
4 1984 2.34 4.65 1.42 2.63 8.27 5.33
5 1985 1.90 2.63 1.37 0.70 1.95 1.08
6 1986 1.81 -0.41 2.10 0.55 0.36 -0.31
7 1987 3.98 0.31 0.17 8.61 9.04 -0.17
8 1988 4.46 6.44 1.86 4.89 4.94 3.40
9 1989 4.46 6.44 1.86 4.89 4.94 3.40
10 1990 3.40 1.42 1.04 2.48 1.28 0.27
11 1991 2.72 0.31 1.71 4.65 8.94 -0.41
12 1992 1.86 1.18 -0.07 0.07 5.18 4.75
13 1993 2.72 3.11 1.37 5.04 13.53 2.05
14 1994 2.58 3.40 8.56 1.52 10.15 8.51
15 1995 2.92 3.69 7.55 1.90 3.16 3.16
16 1996 0.80 6.58 3.45 5.04 4.41 4.03
17 1997 1.04 1.52 1.66 0.02 1.47 2.34
18 1998 1.52 -0.41 0.36 2.58 7.26 4.75
19 1999 1.52 1.62 3.79 1.71 6.10 2.53
20 2000 3.01 2.24 1.33 0.27 0.22 7.31
21 2001 1.62 3.88 1.13 1.76 2.24 2.15
22 2002 4.89 0.07 1.71 -0.41 6.63 5.71
23 2003 1.66 4.07 4.51 -0.41 0.65 2.63
Jumlah 55.76 56.97 51.14 67.14 111.79 66.95
Rerata 2.42 2.48 2.22 2.92 4.86 2.91
Stdev 1.19 2.22 2.16 3.02 3.50 2.39
Correl 1.00 1.00 1.00 1.00 1.00 1.00
Q80 1.85 0.81 1.81 0.61 1.00 0.25
Q50 2.29 2.15 0.65 2.56 9.35 3.40

Q80 = n/5 + 1 = 23/5 + 1 = 5.6

Q50 = n/2 + 1 = 23/2 + 1 = 12.5

METODE SMEC Type II

Perhitungan Debit Andalan

A= 229.61 km

Tipe II : jenis tanah porous dimana :

Q = 0,20 . A . PI . 10
-3
A
untuk PI < 300 mm MMR
 Q = A . ( 0,32 . PI 36 ) . 10-3 Q
untuk PI > 300 mm PI
PI

No Tahun Jan Feb Mar Apr May Jun

1 1981 1.12 1.30 3.18 4.70 5.30 0.57
2 1982 1.44 3.78 1.30 11.77 2.72 1.81
3 1983 2.86 0.02 0.66 2.36 3.60 2.95
4 1984 2.59 4.79 1.71 2.86 8.24 5.43
5 1985 2.17 2.86 1.67 1.03 2.22 1.39
6 1986 2.08 -0.03 2.36 0.89 0.70 0.06
7 1987 4.15 0.66 0.52 8.56 8.97 0.20
8 1988 4.61 6.49 2.13 5.02 5.07 3.60
9 1989 4.61 6.49 2.13 5.02 5.07 3.60
10 1990 3.60 1.71 1.35 2.72 1.58 0.61
11 1991 2.95 0.66 1.99 4.79 8.88 -0.03
12 1992 2.13 1.48 0.29 0.43 5.30 4.88
13 1993 2.95 3.32 1.67 5.16 13.24 2.31
14 1994 2.82 3.60 8.51 1.81 10.03 8.46
15 1995 3.14 3.87 7.55 2.17 3.37 3.37
16 1996 1.12 6.63 3.64 5.16 4.56 4.19
17 1997 1.35 1.81 1.94 0.38 1.76 2.59
18 1998 1.81 -0.03 0.70 2.82 7.27 4.88
19 1999 1.81 1.90 3.96 1.99 6.17 2.77
20 2000 3.23 2.50 1.62 0.61 0.57 7.32
21 2001 1.90 4.06 1.44 2.04 2.50 2.40
22 2002 5.02 0.43 1.99 -0.03 6.67 5.80
23 2003 1.94 4.24 4.65 -0.03 0.98 2.86
Jumlah 61.38 62.53 56.97 72.22 114.74 72.04
Rerata 2.67 2.72 2.48 3.14 4.99 3.13
Stdev 1.14 2.11 2.06 2.87 3.33 2.27
Correl 1.00 1.00 1.00 1.00 1.00 1.00
Q80 2.12 1.13 2.08 0.94 1.31 0.59
Q50 2.54 2.40 0.98 2.79 9.27 3.60

Q80 = n/5 + 1 = 23/5 + 1 = 5.6

Q50 = n/2 + 1 = 23/2 + 1 = 12.5

METODE F.J Mock

Q = ( BF + DR ) . A
 dimana :
Q = debit andalan, m3/det
BF = base flow / aliran dasar
DR = direct run off / aliran langsung
A = catchment area / daerah tangkapan hujan, km2 =
Faktor Resei (K) = 0.6
Koefesien Infiltrasi = 0.4
Jumlah Hari hujan (n) = 9
Faktor Singkapan (m) = 0.2
Vol Tampungan awal (Vn-1) 14.82 mm
= Jan Feb Mar
Evap Aktual (Eto) = 123.21 115.20 115.42
Jumlah Hari /Bulan = 31 28 31

Untuk Tahun 1981

Uraian Jan Feb Mar Apr May Jun
E 11.08871 10.36774 10.38748 8.687976 8.085423 6.6343225
EL 112.1192 104.8294 105.029 87.84509 81.75261 67.080372
Ep -49.1192 -103.8294 -90.029 -35.8451 -2.75261 -2.080372
SMS 323.2079 315.1971 315.4165 296.5331 289.838 273.71469
200 200 200 200 200 200
Ws
I 0 0 0 0 0 0
Aquifer 0 0 0 0 0 0
Vn 8.892 8.892 8.892 8.892 8.892 8.892
Vn' -5.928 -5.928 -5.928 -5.928 -5.928 -5.928
BF 5.928 5.928 5.928 5.928 5.928 5.928
DR 0 0 0 0 0 0
TR 5.928 5.928 5.928 5.928 5.928 5.928
Q 0.508187 0.562636 0.508187 0.525127 0.508187 0.5251266
DALAN

Aug Sep Oct Nov Dec SUM

19 157 88 91 10 836
13 13 4 12 34 605
38 100 20 38 43 644
27 43 9 25 21 848
42 18 26 28 28 409
5 54 36 50 24 347
90 0 108 55 21 805
246 119 69 155 35 1458
246 119 69 155 35 1458
25 49 101 136 69 683
13 1 31 39 84 604
63 7 25 30 103 797
15 18 60 59 51 887
132 36 114 72 157 1416
146 153 88 88 30 1184
250 186 140 64 43 1294
0 0 36 167 46 486
138 26 26 157 29 1087
20 101 109 16 46 817
91 49 102 122 119 930
9 64 71 126 74 663
20 0 5 0 127 724
25 51 58 37 25 542

dimana :
A = luas daerah tangkapan (km2) = 229.61 km2
MMR = hujan rata-rata bulanan (mm)
Q = debit andalan (m3/det)
PI = indek presipitasi
1
PI = MMR + 2 ( MMR 1)
3 3
Jul Aug Sep Oct Nov Dec
 5.14 0.51 7.16 3.83 3.98 0.07
0.94 0.22 0.22 -0.22 0.17 1.23
5.86 1.42 4.41 0.55 1.42 1.66
7.35 0.89 1.66 0.02 0.80 0.60
0.36 1.62 0.46 0.84 0.94 0.94
1.62 -0.17 2.19 1.33 2.00 0.75
0.80 3.93 -0.41 4.80 2.24 0.60
11.36 11.45 5.33 2.92 7.06 1.28
11.36 11.45 5.33 2.92 7.06 1.28
1.86 0.80 1.95 4.46 6.15 2.92
0.22 0.22 -0.36 1.08 1.47 3.64
11.60 2.63 -0.07 0.80 1.04 4.56
2.29 0.31 0.46 2.48 2.44 2.05
6.05 5.95 1.33 5.09 3.06 7.16
7.50 6.63 6.97 3.83 3.83 1.04
2.29 11.64 8.56 6.34 2.68 1.66
0.51 -0.41 -0.41 1.33 7.64 1.81
15.36 6.24 0.84 0.84 7.16 0.99
5.18 0.55 4.46 4.85 0.36 1.81
4.32 3.98 1.95 4.51 5.47 5.33
-0.27 0.02 2.68 3.01 5.67 3.16
6.10 0.55 -0.41 -0.17 -0.41 5.71
0.70 0.80 2.05 2.39 1.37 0.80
108.47 71.24 56.34 57.84 73.60 51.04
4.72 3.10 2.45 2.51 3.20 2.22
4.40 3.94 2.71 1.93 2.57 1.88
1.00 1.00 1.00 1.00 1.00 1.00
1.11 0.54 1.50 1.13 1.58 0.82
6.94 1.47 0.19 1.64 1.74 3.30
Data Bulanan (m3/det)

2.5
= luas daerah tangkapan (km2) = 229.61 km2
= hujan rata-rata bulanan (mm)
2

1.5
 Data Bula
2.5

= debit andalan (m3/det) 2

= indek presipitasi
= 1 MMR + 2 ( MMR 1)
3 3 1.5

Jul Aug Sep Oct Nov Dec

5.25 0.84 7.18 4.01 4.15 0.43 1
1.26 0.57 0.57 0.15 0.52 1.53
5.94 1.71 4.56 0.89 1.71 1.94
0.5
7.36 1.21 1.94 0.38 1.12 0.93
0.70 1.90 0.80 1.16 1.26 1.26
1.90 0.20 2.45 1.62 2.27 1.07 0
1.12 4.10 -0.03 4.93 2.50 0.93
11.17 11.27 5.43 3.14 7.09 1.58
11.17 11.27 5.43 3.14 7.09 1.58

D ata B ulanan (m 3/det)

2.13 1.12 2.22 4.61 6.21 3.14
0.57 0.57 0.02 1.39 1.76 3.83
11.40 2.86 0.29 1.12 1.35 4.70
2.54 0.66 0.80 2.72 2.68 2.31
6.12 6.03 1.62 5.20 3.28 7.18 10
7.50 6.67 7.00 4.01 4.01 1.35
9
2.54 11.45 8.51 6.40 2.91 1.94
8
0.84 -0.03 -0.03 1.62 7.64 2.08
14.99 6.31 1.16 1.16 7.18 1.30 7
5.30 0.89 4.61 4.97 0.70 2.08 6
4.47 4.15 2.22 4.65 5.57 5.43
5
0.11 0.38 2.91 3.23 5.76 3.37
6.17 0.89 -0.03 0.20 -0.03 5.80 4
1.03 1.12 2.31 2.63 1.67 1.12 3
111.58 76.12 61.93 63.36 78.37 56.88
4.85 3.31 2.69 2.75 3.41 2.47 2
4.19 3.75 2.58 1.84 2.44 1.79 1
1.00 1.00 1.00 1.00 1.00 1.00
0
1.42 0.88 1.79 1.44 1.86 1.14
6.97 1.76 0.54 1.92 2.01 3.51
 229.61 km2

Apr May Jun Jul Aug Sep Oct Nov Dec

96.53 89.84 73.71 77.88 100.22 132.91 145.37 130.97 119.24
30 31 30 31 31 31 31 30 31

Jul Aug Sep Oct Nov Dec

7.0088412 9.019971 11.9617 13.0834 11.786923 10.731201 E = ET0 . m
(20 )
70.867173 91.20193 120.9461 132.2877 119.17889 108.50436 EL = ET0 E
59.132827 -53.20193 -20.94606 -112.288 -81.17889 -65.50436 EP = P EL
277.87601 300.2219 332.9078 345.3711 330.96581 319.23556
200 200 200 200 200 200

0 0 0 0 0 0I = 0,4 . WS
0 0 0 0 0 0 Aquifer = I.(1+K)/2
8.892 8.892 8.892 8.892 8.892 8.892 Vn = Aquifer + ( K . V
-5.928 -5.928 -5.928 -5.928 -5.928 -5.928 Vn = Vn Vn-1
5.928 5.928 5.928 5.928 5.928 5.928 BF = I Vn
0 0 0 0 0 0 DR = WS I
5.928 5.928 5.928 5.928 5.928 5.928 TR = BF + DR
0.508187 0.508187 0.508187 0.508187 0.5251266 0.508187 Q = TR . A
Data Bulanan (m3/det)

Grafik Debit andalan Q-80

2.5

1.5
 Grafik Debit andalan Q-80
Data Bula
2.5

1.5

0.5

0
Bulan
D ata B ulanan (m 3/det)

Grafik Debit andalan Q-50

10

0
Bulan
 (20m ). ( 18 n )

I.(1+K)/2
Aquifer + ( K . Vn-1 )
LUAS DAS = 229.61 KM2 KONTROL KELENGASAN =
NILAI TAMPUNGAN KELENGASAN AWAL= 850 mm Total debit Mock =
NILAI TAMPUNGAN KELENGASAN AKHIR = 1002.487 mm Total debit NRECA =
SELISIH KELENGASAN = 152.487 mm
NILAI TAMPUNGAN AIR TANAH AWAL = 2 mm
NILAI TAMPUNGAN AIR TANAH AKHIR = 11 mm
PSUB = 0.3 0.3<x<0.9
GWF = 0.8 0.2<x<0.8
NOMINAL = 609
KOEFISIEN REDUKSI = 0.8 0.4<x<0.9

Bulan Hujan Evapotranspirasi Tampungan Rasio

Potensial Kelengasan Tampungan
(PET) (Wo) Tanah (Wi)
1 2 3 4 5
(mm/bln) (mm/bln)
Januari 31 331 132.37 850.00 1.40
Februari 28 90 148.12 895.02 1.47
Maret 31 240 154.38 883.11 1.45
April 30 177 150.9 901.75 1.48
Mei 31 271 144.77 909.07 1.49
Juni 30 112 118.2 929.24 1.53
Juli 31 161 127.72 931.88 1.53
Agustus 31 117 146.94 939.53 1.54
September 30 135 149.7 947.20 1.56
Oktober 31 432 155.93 949.65 1.56
November 30 251 134.7 989.60 1.62
Desember 31 228 148.8 1002.49 1.65
2545

Rasio dengan tabel

Bulan Hujan Evapotranspirasi Tampungan Rasio
Potensial Kelengasan Tampungan
(PET) (Wo) Tanah (Wi)
1 2 3 4 5
(mm/bln) (mm/bln)
Januari 31 331 132.37 155.93 0.26
Februari 28 90 148.12 200.95 0.33
Maret 31 240 154.38 189.04 0.31
April 30 177 150.9 207.68 0.34
Mei 31 271 144.77 215.00 0.35
Juni 30 112 118.2 235.17 0.39
Juli 31 161 127.72 237.81 0.39
Agustus 31 117 146.94 245.46 0.40
September 30 135 149.7 253.13 0.42
Oktober 31 432 155.93 255.58 0.42
November 30 251 134.7 295.53 0.49
Desember 31 228 148.8 308.42 0.51
2545
NTROL KELENGASAN = 152.49 < 200 OK
al debit Mock = 46.82 m3/dt
al debit NRECA = 89.69 m3/dt

Rasio Rasio AET Neraca Rasio Kelebihan Perubahan Tampungan

Hujan/ AET/PET Air Kelebihan Kelengasan Tampungan Air Tanah
PET Kelengasan
6 7 8 9 10 11 12 13
(mm) (mm) (mm) (mm) (mm)
2.50 1.00 105.90 225.10 0.80 180.08 45.02 54.02
0.61 0.86 101.91 -11.91 0.00 0.00 -11.91 0.00
1.55 1.00 123.50 116.50 0.84 97.86 18.64 29.36
1.17 1.00 120.72 56.28 0.87 48.96 7.32 14.69
1.87 1.00 115.82 155.18 0.87 135.01 20.17 40.50
0.95 0.97 91.72 20.28 0.87 17.64 2.64 5.29
1.26 1.00 102.18 58.82 0.87 51.18 7.65 15.35
0.80 0.93 109.32 7.68 0.00 0.00 7.68 0.00
0.90 0.97 116.17 18.83 0.87 16.38 2.45 4.92
2.77 1.00 124.74 307.26 0.87 267.31 39.94 80.19
1.86 1.00 107.76 143.24 0.91 130.35 12.89 39.10
1.53 1.00 119.04 108.96 0.91 99.15 9.81 29.75

Rasio Rasio AET Neraca Rasio Kelebihan Perubahan Tampungan

Hujan/ AET/PET Air Kelebihan Kelengasan Tampungan Air Tanah
PET Kelengasan
6 7 8 9 10 11 12 13
(mm) (mm) (mm) (mm) (mm)
2.50 1.00 105.90 225.10 0.80 180.08 45.02 54.02
0.61 0.86 101.91 -11.91 0.00 0.00 -11.91 0.00
1.55 1.00 123.50 116.50 0.84 97.86 18.64 29.36
1.17 1.00 120.72 56.28 0.87 48.96 7.32 14.69
1.87 1.00 115.82 155.18 0.87 135.01 20.17 40.50
0.95 0.97 91.72 20.28 0.87 17.64 2.64 5.29
1.26 1.00 102.18 58.82 0.87 51.18 7.65 15.35
0.80 0.93 109.32 7.68 0.00 0.00 7.68 0.00
0.90 0.97 116.17 18.83 0.87 16.38 2.45 4.92
2.77 1.00 124.74 307.26 0.87 267.31 39.94 80.19
1.86 1.00 107.76 143.24 0.91 130.35 12.89 39.10
1.53 1.00 119.04 108.96 0.91 99.15 9.81 29.75
Tampungan Tampungan Aliran Air Aliran Aliran Aliran TABEL NILAI RASIO ANTARA Rb D
Air Tanah Air Tanah Tanah Langsung Total Total
Awal Akhir Rb/PET
14 15 16 17 18 19 RATIO
3
(mm) (mm) (mm) (mm) (mm) m /dt 0 0
2.00 56.02 44.82 126.06 170.88 14.65 0.1 1
11.20 11.20 8.96 0.00 8.96 0.85 0.2 2
2.24 31.60 25.28 68.50 93.78 8.04 0.3 3
6.32 21.01 16.81 34.27 51.08 4.53 0.4 4
4.20 44.70 35.76 94.51 130.27 11.17 0.5 5
8.94 14.23 11.39 12.35 23.74 2.10 0.6 6
2.85 18.20 14.56 35.82 50.38 4.32 0.7 7
3.64 3.64 2.91 0.00 2.91 0.25 0.8 8
0.73 5.64 4.51 11.47 15.98 1.42 0.9 9
1.13 81.32 65.06 187.12 252.18 21.62 1 10
16.26 55.37 44.30 91.24 135.54 12.01 1.1 11
11.07 40.82 32.66 69.41 102.06 8.75 1.2 12
89.69 1.3 13
1.4 14
1.5 15
1.6 16
1.7 17
Tampungan Tampungan Aliran Air Aliran Aliran Aliran 1.8 18
Air Tanah Air Tanah Tanah Langsung Total Total 1.9 19
Awal Akhir 2 20
14 15 16 17 18 19
(mm) (mm) (mm) (mm) (mm) m3/dt
0.00 54.02 43.22 126.06 169.28 14.51
10.80 10.80 8.64 0.00 8.64 0.82
2.16 31.52 25.21 68.50 93.71 8.03
6.30 20.99 16.79 34.27 51.07 4.52
4.20 44.70 35.76 94.51 130.27 11.17
8.94 14.23 11.39 12.35 23.73 2.10
2.85 18.20 14.56 35.82 50.38 4.32
3.64 3.64 2.91 0.00 2.91 0.25
0.73 5.64 4.51 11.47 15.98 1.42
1.13 81.32 65.06 187.12 252.18 21.62
16.26 55.37 44.30 91.24 135.54 12.01
11.07 40.82 32.66 69.41 102.06 8.75
89.52
LAI RASIO ANTARA Rb DAN PET

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

0 1 2 3 4 5 6 7 8 9
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45
0.05 0.01 0.15 0.29 0.24 0.29 0.34 0.39 0.43 0.48
0.10 0.15 0.19 0.24 0.28 0.33 0.37 0.42 0.46 0.51
0.15 0.19 0.24 0.28 0.33 0.37 0.41 0.45 0.49 0.54
0.20 0.24 0.28 0.32 0.37 0.40 0.45 0.49 0.53 0.57
0.25 0.29 0.33 0.37 0.40 0.44 0.48 0.52 0.55 0.59
0.30 0.34 0.37 0.41 0.44 0.48 0.52 0.55 0.58 0.62
0.35 0.38 0.42 0.45 0.48 0.52 0.55 0.58 0.62 0.65
0.40 0.43 0.47 0.49 0.52 0.55 0.58 0.62 0.65 0.69
0.45 0.48 0.51 0.53 0.56 0.58 0.62 0.65 0.67 0.71
0.50 0.53 0.55 0.57 0.60 0.63 0.66 0.68 0.71 0.74
0.55 0.58 0.60 0.62 0.64 0.67 0.69 0.71 0.74 0.76
0.60 0.62 0.64 0.67 0.69 0.71 0.73 0.74 0.76 0.79
0.65 0.67 0.69 0.71 0.73 0.74 0.77 0.78 0.80 0.82
0.70 0.72 0.73 0.75 0.77 0.78 0.79 0.82 0.83 0.84
0.75 0.77 0.78 0.79 0.81 0.82 0.83 0.84 0.85 0.87
0.80 0.82 0.82 0.83 0.84 0.85 0.86 0.88 0.88 0.89
0.85 0.86 0.87 0.87 0.88 0.89 0.89 0.90 0.92 0.93
0.90 0.91 0.92 0.92 0.93 0.94 0.94 0.94 0.94 0.95
0.95 0.96 0.96 0.96 0.97 0.97 0.97 0.97 0.97 0.97
1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95
10 11 12 13 14 15 16 17 18 19
0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95
0.53 0.57 0.62 0.67 0.72 0.76 0.81 0.85 0.90 0.95
0.55 0.59 0.64 0.69 0.73 0.77 0.82 0.86 0.90 0.95
0.58 0.63 0.67 0.71 0.74 0.78 0.83 0.86 0.91 0.95
0.60 0.65 0.69 0.73 0.76 0.80 0.84 0.87 0.91 0.96
0.63 0.67 0.71 0.74 0.77 0.81 0.85 0.87 0.91 0.96
0.65 0.69 0.73 0.77 0.78 0.83 0.86 0.87 0.92 0.96
0.69 0.73 0.75 0.78 0.81 0.84 0.87 0.88 0.92 0.96
0.71 0.74 0.77 0.79 0.82 0.85 0.88 0.88 0.92 0.97
0.74 0.76 0.78 0.81 0.83 0.86 0.89 0.89 0.93 0.97
0.76 0.78 0.81 0.83 0.84 0.87 0.90 0.90 0.93 0.97
0.78 0.81 0.83 0.84 0.85 0.88 0.91 0.91 0.94 0.97
0.81 0.83 0.84 0.86 0.86 0.89 0.92 0.92 0.94 0.98
0.83 0.84 0.87 0.87 0.87 0.91 0.93 0.93 0.95 0.98
0.85 0.87 0.88 0.89 0.89 0.92 0.94 0.94 0.95 0.98
0.88 0.89 0.90 0.91 0.91 0.93 0.95 0.95 0.96 0.98
0.90 0.92 0.92 0.93 0.93 0.94 0.96 0.96 0.96 0.99
0.93 0.94 0.94 0.94 0.94 0.95 0.97 0.97 0.97 0.99
0.95 0.96 0.97 0.97 0.97 0.97 0.98 0.98 0.98 0.99
0.97 0.97 0.98 0.98 0.99 0.99 0.99 0.99 0.99 0.99
1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
 KELENGASAN

1 RATIO
20
1.00 0.00 0.00 0.00
1.00 0.05 1.00 0.01
1.00 0.10 2.00 0.01
1.00 0.15 3.00 0.02
1.00 0.20 4.00 0.02
1.00 0.25 5.00 0.03
1.00 0.30 6.00 0.04
1.00 0.35 7.00 0.06
1.00 0.40 8.00 0.07
1.00 0.45 9.00 0.80
1.00 0.50 10.00 0.11
1.00 0.55 11.00 0.14
1.00 0.60 12.00 0.17
1.00 0.65 13.00 0.21
1.00 0.70 14.00 0.25
1.00 0.75 15.00 0.29
1.00 0.80 16.00 0.34
1.00 0.85 17.00 0.37
1.00 0.90 18.00 0.42
1.00 0.95 19.00 0.46
1.00 1.00 20.00 0.50
1.05 21.00 0.55
1.10 22.00 0.59
1.15 23.00 0.64
1.20 24.00 0.67
1.25 25.00 0.71
1.30 26.00 0.76
1.35 27.00 0.80
1.40 28.00 0.84
1.45 29.00 0.87
1.50 30.00 0.89
1.55 31.00 0.91
1.60 32.00 0.93
1.65 33.00 0.94
1.70 34.00 0.95
1.75 35.00 0.96
1.80 36.00 0.97
1.85 37.00 0.98
1.90 38.00 0.99
1.95 39.00 0.99
2.00 40.00 1.00