MCM CMS1969 - - - 460.20 280.0 1 58.70 722.60 893.80 330.70 189.90 77.20 49.80 2782.90 88.251970 53.14 74.56 154.83 249.78 459.04 417.31 569.55 678.59 433.38 189.13 58.49 83.20 3421.00 108.481971 36.89 49.94 68.52 104.98 90.29 129.17 522.12 303.96 443.66 170.12 56.16 38.71 2014.52 63.881972 61.78 64.20 71.11 96.34 117.50 341.28 594.09 600.48 574.73 134.96 54.86 40.35 2751.68 87.261973 33.83 109.56 215.48 539.65 467.17 521.08 539.83 1051.40 752.37 212.72 81.13 62.04 4586.26 145.431974 51.20 150.90 154.50 182.30 296.00 377.10 676.90 955.70 617.20 2166.70 227.90 129.40 5985.80 189.811975 87.01 172.37 518.40 319.08 390.53 354.50 555.03 781.23 377.40 119.06 57.54 42.60 3774.75 119.701976 53.31 195.70 212.11 164.16 272.77 513.73 465.35 604.11 482.98 164.07 65.32 48.04 3241.65 102.791977 48.99 62.55 72.06 98.93 168.83 300.07 521.34 654.13 287.54 117.16 62.81 49.16 2443.57 77.491978 78.07 190.23 271.48 424.17 409.16 506.01 516.53 427.35 263.14 103.51 56.03 46.28 3291.96 104.391979 61.34 89.64 183.73 825.89 665.98 588.72 627.55 532.73 355.61 110.99 62.16 67.21 4171.55 132.281980 47.20 90.40 256.80 587.40 691.10 818.70 904.90 880.80 730.90 188.00 86.60 69.70 5352.50 169.731981 60.56 245.98 375.72 136.22 84.49 184.09 256.06 615.49 779.89 122.09 50.58 46.23 2957.40 93.781982 80.05 216.02 338.78 723.70 549.07 484.84 640.99 669.58 274.41 105.05 43.17 23.74 4149.40 131.581983 24.37 72.83 219.54 275.42 453.33 527.29 779.03 634.30 240.69 131.73 124.90 61.19 3544.62 112.401984 72.37 228.39 283.02 426.92 226.26 311.77 706.96 300.21 795.66 429.95 123.16 112.43 4017.10 127.381985 77.13 276.91 347.46 152.33 180.92 348.36 739.73 623.25 350.77 144.10 56.45 38.16 3335.57 105.771986 38.60 192.40 180.80 366.50 593.60 1071.10 1192.10 846.80 461.00 161.00 77.20 57.40 5238.50 166.111987 40.98 87.43 167.94 59.77 377.41 382.76 464.12 585.95 847.87 210.84 96.32 55.94 3377.33 107.091988 63.30 176.10 72.50 354.10 347.10 704.00 749.50 1416.10 668.20 192.00 82.60 63.60 4889.10 155.031989 72.61 139.13 140.02 215.02 309.34 410.51 752.13 551.03 115.70 56.84 33.14 32.39 2827.86 89.671990 47.20 86.50 123.10 89.60 187.30 202.50 436.90 709.70 376.30 119.20 63.20 61.50 2503.00 79.371991 34.16 103.82 248.95 327.03 516.36 708.06 618.98 437.73 272.33 216.25 70.60 43.01 3597.28 114.071992 27.29 51.48 52.88 48.06 232.06 339.59 608.74 611.23 190.37 88.72 43.61 41.29 2335.32 74.051993 56.00 67.40 71.60 203.00 209.00 477.10 848.70 625.20 1144.90 452.60 124.60 119.90 4400.00 139.521994 106.04 243.62 227.86 226.36 452.28 821.62 786.31 589.85 512.00 163.95 75.55 52.30 4257.74 135.011995 43.24 34.09 72.74 88.70 437.49 703.10 581.25 821.75 504.87 125.65 92.72 45.84 3551.44 112.621996 76.30 127.93 188.31 254.42 298.30 483.75 603.90 621.34 813.36 198.51 110.69 67.49 3844.30 121.901997 48.00 47.90 73.70 258.00 578.60 1005.70 908.30 630.10 354.30 107.80 44.30 26.60 4083.30 129.481998 28.20 29.50 100.00 204.70 435.50 771.50 1028.40 882.90 673.80 280.10 279.40 233.60 4947.60 156.891999 414.99 293.98 417.26 330.59 261.97 477.94 702.00 925.76 419.63 128.87 114.55 190.08 4677.62 148.332000 319.59 536.01 590.59 398.76 459.24 439.58 727.57 856.40 728.15 567.64 272.75 250.41 6146.69 194.912001 204.16 464.95 319.18 441.26 335.48 460.12 776.26 801.95 300.74 126.40 51.88 51.57 4333.95 137.432002 47.90 84.87 41.44 74.87 144.47 296.73 634.88 677.08 310.64 265.04 55.89 36.73 2670.54 84.682003 48.39 61.80 73.93 188.53 294.13 399.65 745.38 - 613.60 196.65 89.07 64.94 2776.07 88.032004 59.44 76.92 134.59 212.27 335.91 402.16 778.29 292.38 132.41 81.82 54.58 53.81 2614.58 82.912005 26.23 40.97 187.03 151.18 114.39 123.25 421.26 559.59 1098.08 465.25 277.56 114.53 3579.32 113.502006 - 487.21 567.54 794.29 479.25 534.39 825.07 345.01 165.33 90.85 - 49.00 4337.94 137.56

Average 75.83 154.71 210.69 290.91 349.23 473.63 671.81 675.54 494.60 239.35 93.37 71.58 3758.20 119.17max 414.99 536.01 590.59 825.89 691.10 1071.10 1192.10 1416.10 1144.90 2166.70 279.40 250.41 6146.69 194.91min 24.37 29.50 41.44 48.06 84.49 58.70 256.06 292.38 115.70 56.84 33.14 23.74 2014.52 63.88

STDEV 78.95 126.21 143.85 199.70 161.81 227.51 176.85 225.10 254.37 340.72 65.26 52.08 1011.04 32.06

April 75.83

Runoff in Water Year [Ban Yan Din Daeng, A. Phrasaeng, Surat Thani, (X.37A)]

Aug RunoffYear Apr May Jun Jul MarSep Oct Nov Dec Jan Feb

May 154.71June 210.69July 290.91

August 349.23September 473.63

October 671.81November 675.54December 494.60January 239.35February 93.37March 71.58

0.00

100.00

200.00

300.00

400.00

500.00

600.00

700.00

800.00

April May June July August September October November December January February March

Q R

unof

f

Month

Watershead Area Water Runoff

(square Kilomeater) (MCM.)

X.53 233 299.53

X.64 957 578.15

X.158 1819 1585.87

X.36 3012 3654.11

X.38 2690 4634.71

X.39 1437 297.24

X.57 8 24.92

X.58 312 777.97

X.99 62 85.09

X.103 180 115.34

X.106 309 135.91

X.37A 5200 3825.71

X.6B 4415 5046.7

X.81A 220 189.65

Code of station

The relationship between basin area and average annual runoff.

299.53

578.15

1585.87

3654.11 4634.71

297.24

24.92

777.97

85.09 115.34 135.91

3825.71 5046.7

189.65

y = 0.997x + 32.891

R² = 0.8227

1

10

100

1000

10000

1 10 100 1000 10000

Area

Runoff

The relationship between basin area and average annual

runoff.