Site ID: 238 Lat. 15.2101 Thailand Ubon Ratchathani
River: Mun Long. 104.7991
Site name: Ubon Ratchathani Contributing area: 106757 km2 Ratio to Comparison Station: 0.20
Latest measurement: 29-Jul-10 Mean annual runoff: 195 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 81.4 mm
Latest M/C ratio: 1.20 Seven day total: 2.1 mm
Estimated current discharge: 377 m3/sec Percent of mean 7-day total: 100.0 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 5673 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 5251 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
179 2002 no data no data no data no data no data no data no data 7.3 30.0 86.9 35.6 19.5
174 2003 14.9 10.5 13.7 9.3 9.5 9.1 9.5 9.5 22.5 34.7 14.9 15.8
151 2004 11.5 10.4 13.5 9.1 10.1 8.8 9.5 11.5 23.1 19.7 13.9 9.9
179 2005 9.8 8.8 11.3 14.3 9.5 9.7 9.5 9.5 11.6 19.3 45.4 21.1
177 2006 10.8 7.9 9.6 9.1 10.5 10.5 9.5 9.5 9.1 90.9 0.0 0.0
229 2007 16.7 10.3 9.8 9.1 9.5 9.1 9.5 10.1 28.0 68.7 30.6 18.1
212 2008 16.1 10.4 11.7 11.9 9.5 8.5 9.5 9.5 9.4 58.3 29.5 27.7
241 2009 16.6 14.5 10.0 11.2 9.5 9.1 9.5 11.7 28.9 72.8 25.6 21.3
81 2010 15.5 12.3 12.9 10.9 10.9 9.2 9.5 0.3 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 195 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-02 377
23-Jul-02 377
24-Jul-02 377
25-Jul-02 377
26-Jul-02 377
27-Jul-02 377
28-Jul-02 377
29-Jul-02 377
30-Jul-02 377
31-Jul-02 377
1-Aug-02 377
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 377
10-Aug-02 377
11-Aug-02 377
12-Aug-02 377
13-Aug-02 377
14-Aug-02 377
15-Aug-02 377
16-Aug-02 377
17-Aug-02 377
18-Aug-02 377
19-Aug-02 377
20-Aug-02 377
21-Aug-02 377
22-Aug-02 377
23-Aug-02 377
24-Aug-02 377
25-Aug-02 377
26-Aug-02 377
27-Aug-02 377
28-Aug-02 377
29-Aug-02 377
30-Aug-02 377
31-Aug-02 377
1-Sep-02 377
2-Sep-02 377
3-Sep-02 377
4-Sep-02 377
5-Sep-02 377
6-Sep-02 861
7-Sep-02 1415
8-Sep-02 923
9-Sep-02 1241
10-Sep-02 377
11-Sep-02 377
12-Sep-02 377
13-Sep-02 377
14-Sep-02 2398
15-Sep-02 2398
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1681
22-Sep-02 2062
23-Sep-02 1390
24-Sep-02 2167
25-Sep-02 2329
26-Sep-02 2318
27-Sep-02 3985
28-Sep-02 3299
29-Sep-02 3299
30-Sep-02 1938
1-Oct-02 3640
2-Oct-02 3348
3-Oct-02 3101
4-Oct-02 5441
5-Oct-02 4148
6-Oct-02 4148
7-Oct-02 4265
8-Oct-02 5004
9-Oct-02 4239
10-Oct-02 4556
11-Oct-02 5170
12-Oct-02 4371
13-Oct-02 4756
14-Oct-02 5990
15-Oct-02 5990
16-Oct-02 3174
17-Oct-02 3079
18-Oct-02 1289
19-Oct-02 2003
20-Oct-02 3369
21-Oct-02 2448
22-Oct-02 2448
23-Oct-02 2343
24-Oct-02 2578
25-Oct-02 3167
26-Oct-02 3088
27-Oct-02 2930
28-Oct-02 2459
29-Oct-02 2237
30-Oct-02 1313
31-Oct-02 1313
1-Nov-02 1925
2-Nov-02 1870
3-Nov-02 2445
4-Nov-02 2156
5-Nov-02 1717
6-Nov-02 2331
7-Nov-02 2331
8-Nov-02 1797
9-Nov-02 2136
10-Nov-02 1641
11-Nov-02 1537
12-Nov-02 1832
13-Nov-02 1444
14-Nov-02 1395
15-Nov-02 1573
16-Nov-02 1573
17-Nov-02 1260
18-Nov-02 1390
19-Nov-02 1300
20-Nov-02 993
21-Nov-02 1003
22-Nov-02 701
23-Nov-02 701
24-Nov-02 1220
25-Nov-02 1219
26-Nov-02 1192
27-Nov-02 1016
28-Nov-02 873
29-Nov-02 752
30-Nov-02 685
1-Dec-02 852
2-Dec-02 852
3-Dec-02 582
4-Dec-02 722
5-Dec-02 646
6-Dec-02 815
7-Dec-02 1129
8-Dec-02 906
9-Dec-02 906
10-Dec-02 430
11-Dec-02 488
12-Dec-02 377
13-Dec-02 422
14-Dec-02 482
15-Dec-02 389
16-Dec-02 605
17-Dec-02 635
18-Dec-02 635
19-Dec-02 846
20-Dec-02 975
21-Dec-02 945
22-Dec-02 1022
23-Dec-02 1219
24-Dec-02 1030
25-Dec-02 1030
26-Dec-02 779
27-Dec-02 857
28-Dec-02 974
29-Dec-02 879
30-Dec-02 948
31-Dec-02 742
1-Jan-03 527
2-Jan-03 580
3-Jan-03 580
4-Jan-03 528
5-Jan-03 477
6-Jan-03 377
7-Jan-03 557
8-Jan-03 677
9-Jan-03 460
10-Jan-03 460
11-Jan-03 377
12-Jan-03 455
13-Jan-03 710
14-Jan-03 719
15-Jan-03 744
16-Jan-03 586
17-Jan-03 502
18-Jan-03 377
19-Jan-03 377
20-Jan-03 377
21-Jan-03 448
22-Jan-03 694
23-Jan-03 775
24-Jan-03 817
25-Jan-03 685
26-Jan-03 685
27-Jan-03 619
28-Jan-03 780
29-Jan-03 773
30-Jan-03 819
31-Jan-03 821
1-Feb-03 548
2-Feb-03 608
3-Feb-03 377
4-Feb-03 377
5-Feb-03 496
6-Feb-03 469
7-Feb-03 538
8-Feb-03 448
9-Feb-03 377
10-Feb-03 519
11-Feb-03 519
12-Feb-03 780
13-Feb-03 789
14-Feb-03 395
15-Feb-03 426
16-Feb-03 377
17-Feb-03 377
18-Feb-03 448
19-Feb-03 377
20-Feb-03 377
21-Feb-03 664
22-Feb-03 377
23-Feb-03 377
24-Feb-03 411
25-Feb-03 377
26-Feb-03 377
27-Feb-03 377
28-Feb-03 377
1-Mar-03 377
2-Mar-03 435
3-Mar-03 544
4-Mar-03 642
5-Mar-03 574
6-Mar-03 449
7-Mar-03 377
8-Mar-03 377
9-Mar-03 818
10-Mar-03 857
11-Mar-03 857
12-Mar-03 794
13-Mar-03 782
14-Mar-03 752
15-Mar-03 752
16-Mar-03 792
17-Mar-03 656
18-Mar-03 745
19-Mar-03 636
20-Mar-03 598
21-Mar-03 377
22-Mar-03 377
23-Mar-03 377
24-Mar-03 377
25-Mar-03 377
26-Mar-03 377
27-Mar-03 377
28-Mar-03 377
29-Mar-03 377
30-Mar-03 377
31-Mar-03 377
1-Apr-03 377
2-Apr-03 377
3-Apr-03 377
4-Apr-03 377
5-Apr-03 377
6-Apr-03 377
7-Apr-03 377
8-Apr-03 377
9-Apr-03 377
10-Apr-03 377
11-Apr-03 377
12-Apr-03 377
13-Apr-03 377
14-Apr-03 377
15-Apr-03 425
16-Apr-03 425
17-Apr-03 412
18-Apr-03 377
19-Apr-03 377
20-Apr-03 377
21-Apr-03 377
22-Apr-03 377
23-Apr-03 377
24-Apr-03 377
25-Apr-03 377
26-Apr-03 377
27-Apr-03 377
28-Apr-03 377
29-Apr-03 377
30-Apr-03 377
1-May-03 377