Site ID: 247 Lat. 17.7550 Thailand Udon Thani
River: Huai Luang Long. 103.1331
Site name: Ban Kong Khan Contributing area: 3534 km2 Ratio to Comparison Station: 0.01
Latest measurement: 29-Jul-10 Mean annual runoff: 3079 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 1007.9 mm
Latest M/C ratio: 1.29 Seven day total: 68.5 mm
Estimated current discharge: 758 m3/sec Percent of mean 7-day total: 67.9 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 1855 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1814 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Pakse (2469260)           Contributing Area:   sq mi 536010 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Calibration to nearby ground station has not yet been accomplished.
Discharge and runoff, based on satellite remote sensing (NASA AMSR-E data)
(For U.S, sites, nearby ground station discharge may also be shown)
Annual  Monthly Total Runoff (mm), computed from above satellite-based discharge data
Runoff
(mm) Jan Feb Mar April May June July Aug Sept Oct Nov Dec
1555 2002 no data no data no data no data no data no data no data 414.6 307.6 468.4 218.3 146.2
2190 2003 141.0 63.8 84.2 156.8 231.0 464.5 539.4 9.3 115.0 164.4 65.1 155.6
2390 2004 173.4 95.0 67.7 83.4 74.5 511.0 313.3 481.3 176.3 211.8 89.5 112.8
3171 2005 110.4 96.1 53.9 13.6 7.9 304.0 278.5 532.5 445.6 648.2 405.2 275.2
2446 2006 202.3 99.8 170.3 46.1 85.5 574.6 323.2 265.1 322.3 356.8 0.0 0.0
2747 2007 195.7 142.8 12.0 35.4 57.6 211.9 355.0 245.5 280.3 576.5 373.0 261.0
5014 2008 267.0 75.4 33.6 69.0 326.1 739.8 548.6 699.6 652.3 679.2 423.7 499.6
3596 2009 328.5 107.1 28.7 27.5 129.6 609.0 514.6 545.1 314.6 219.9 390.8 380.6
1008 2010 148.9 71.3 104.3 117.6 22.9 165.5 360.5 17.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 3079 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  5.9
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from within 5 km radius of a calbration land target; blue line is emission from within 5 km radious of the measurement target centered over the river.
Brown line is their ratio (M/C; scale on right) and is used to estimate river discharge via a rating equation.
Rating equations are being developed and applied on an individual basis. For calibration status, see "notes" entry, above.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 689
23-Jul-02 689
24-Jul-02 520
25-Jul-02 520
26-Jul-02 748
27-Jul-02 832
28-Jul-02 231
29-Jul-02 294
30-Jul-02 169
31-Jul-02 3
1-Aug-02 505
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 804
10-Aug-02 804
11-Aug-02 709
12-Aug-02 592
13-Aug-02 427
14-Aug-02 948
15-Aug-02 1067
16-Aug-02 1067
17-Aug-02 1492
18-Aug-02 453
19-Aug-02 557
20-Aug-02 659
21-Aug-02 458
22-Aug-02 451
23-Aug-02 372
24-Aug-02 285
25-Aug-02 1324
26-Aug-02 1324
27-Aug-02 1183
28-Aug-02 837
29-Aug-02 241
30-Aug-02 197
31-Aug-02 200
1-Sep-02 101
2-Sep-02 47
3-Sep-02 48
4-Sep-02 324
5-Sep-02 408
6-Sep-02 513
7-Sep-02 680
8-Sep-02 460
9-Sep-02 627
10-Sep-02 392
11-Sep-02 392
12-Sep-02 412
13-Sep-02 412
14-Sep-02 493
15-Sep-02 493
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 419
22-Sep-02 631
23-Sep-02 631
24-Sep-02 1003
25-Sep-02 1308
26-Sep-02 972
27-Sep-02 972
28-Sep-02 360
29-Sep-02 478
30-Sep-02 3
1-Oct-02 3
2-Oct-02 3
3-Oct-02 3
4-Oct-02 519
5-Oct-02 406
6-Oct-02 466
7-Oct-02 419
8-Oct-02 784
9-Oct-02 967
10-Oct-02 1103
11-Oct-02 1442
12-Oct-02 986
13-Oct-02 986
14-Oct-02 817
15-Oct-02 1026
16-Oct-02 751
17-Oct-02 742
18-Oct-02 822
19-Oct-02 874
20-Oct-02 1190
21-Oct-02 1107
22-Oct-02 1150
23-Oct-02 390
24-Oct-02 401
25-Oct-02 306
26-Oct-02 201
27-Oct-02 395
28-Oct-02 344
29-Oct-02 344
30-Oct-02 74
31-Oct-02 134
1-Nov-02 13
2-Nov-02 227
3-Nov-02 373
4-Nov-02 299
5-Nov-02 466
6-Nov-02 210
7-Nov-02 260
8-Nov-02 436
9-Nov-02 389
10-Nov-02 436
11-Nov-02 570
12-Nov-02 655
13-Nov-02 806
14-Nov-02 806
15-Nov-02 249
16-Nov-02 358
17-Nov-02 90
18-Nov-02 217
19-Nov-02 303
20-Nov-02 204
21-Nov-02 427
22-Nov-02 283
23-Nov-02 285
24-Nov-02 196
25-Nov-02 191
26-Nov-02 157
27-Nov-02 10
28-Nov-02 3
29-Nov-02 3
30-Nov-02 3
1-Dec-02 3
2-Dec-02 35
3-Dec-02 22
4-Dec-02 135
5-Dec-02 200
6-Dec-02 153
7-Dec-02 224
8-Dec-02 35
9-Dec-02 207
10-Dec-02 219
11-Dec-02 189
12-Dec-02 174
13-Dec-02 208
14-Dec-02 241
15-Dec-02 157
16-Dec-02 157
17-Dec-02 22
18-Dec-02 179
19-Dec-02 234
20-Dec-02 354
21-Dec-02 450
22-Dec-02 332
23-Dec-02 436
24-Dec-02 101
25-Dec-02 140
26-Dec-02 190
27-Dec-02 216
28-Dec-02 287
29-Dec-02 252
30-Dec-02 288
31-Dec-02 144
1-Jan-03 144
2-Jan-03 27
3-Jan-03 62
4-Jan-03 97
5-Jan-03 134
6-Jan-03 182
7-Jan-03 127
8-Jan-03 109
9-Jan-03 3
10-Jan-03 65
11-Jan-03 69
12-Jan-03 84
13-Jan-03 100
14-Jan-03 155
15-Jan-03 182
16-Jan-03 208
17-Jan-03 208
18-Jan-03 281
19-Jan-03 308
20-Jan-03 279
21-Jan-03 295
22-Jan-03 276
23-Jan-03 257
24-Jan-03 323
25-Jan-03 335
26-Jan-03 299
27-Jan-03 287
28-Jan-03 252
29-Jan-03 201
30-Jan-03 232
31-Jan-03 185
1-Feb-03 173
2-Feb-03 173
3-Feb-03 168
4-Feb-03 92
5-Feb-03 86
6-Feb-03 97
7-Feb-03 62
8-Feb-03 174
9-Feb-03 208
10-Feb-03 161
11-Feb-03 3
12-Feb-03 13
13-Feb-03 51
14-Feb-03 98
15-Feb-03 171
16-Feb-03 199
17-Feb-03 173
18-Feb-03 173
19-Feb-03 81
20-Feb-03 3
21-Feb-03 3
22-Feb-03 8
23-Feb-03 3
24-Feb-03 102
25-Feb-03 126
26-Feb-03 3
27-Feb-03 3
28-Feb-03 3
1-Mar-03 3
2-Mar-03 3
3-Mar-03 23
4-Mar-03 116
5-Mar-03 177
6-Mar-03 177
7-Mar-03 45
8-Mar-03 3
9-Mar-03 3
10-Mar-03 3
11-Mar-03 3
12-Mar-03 3
13-Mar-03 3
14-Mar-03 3
15-Mar-03 3
16-Mar-03 40
17-Mar-03 104
18-Mar-03 194
19-Mar-03 499
20-Mar-03 684
21-Mar-03 415
22-Mar-03 415
23-Mar-03 3
24-Mar-03 5
25-Mar-03 153
26-Mar-03 112
27-Mar-03 132
28-Mar-03 8
29-Mar-03 13
30-Mar-03 23