Site ID: 244 Lat. 16.2225 Thailand Roi
River: Chi Long. 103.7027
Site name: Ban Bung Kha Contributing area: 40177 km2 Ratio to Comparison Station: 0.07
Latest measurement: 29-Jul-10 Mean annual runoff: 203 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 116.7 mm
Latest M/C ratio: 1.13 Seven day total: 1.3 mm
Estimated current discharge: 121 m3/sec Percent of mean 7-day total: 39.6 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 1868 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1884 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
247 2002 no data no data no data no data no data no data no data 0.2 32.8 104.2 78.1 31.4
109 2003 17.0 1.2 0.5 4.9 22.7 15.0 1.8 0.7 14.5 23.8 5.5 1.7
149 2004 4.5 4.3 0.2 0.4 39.7 26.3 13.0 30.8 17.7 6.2 4.0 1.9
85 2005 4.9 2.7 0.2 0.7 5.4 17.4 0.6 0.2 0.2 7.3 28.0 17.8
122 2006 57.4 10.4 0.2 4.4 1.8 3.7 7.2 1.8 1.7 33.1 0.0 0.0
306 2007 53.2 31.0 1.9 0.4 18.8 14.0 6.0 22.5 2.7 54.3 69.2 32.4
375 2008 52.6 32.3 5.8 1.6 6.9 20.0 21.7 2.7 16.4 60.4 77.8 76.5
276 2009 103.3 49.3 1.6 0.2 7.1 14.6 26.5 7.1 2.6 15.8 22.1 25.8
117 2010 71.1 23.6 0.2 4.8 3.5 5.2 7.8 0.4 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 203 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 3
23-Jul-02 3
24-Jul-02 3
25-Jul-02 3
26-Jul-02 3
27-Jul-02 3
28-Jul-02 3
29-Jul-02 3
30-Jul-02 3
31-Jul-02 3
1-Aug-02 3
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 3
10-Aug-02 3
11-Aug-02 3
12-Aug-02 3
13-Aug-02 3
14-Aug-02 3
15-Aug-02 3
16-Aug-02 3
17-Aug-02 3
18-Aug-02 3
19-Aug-02 3
20-Aug-02 3
21-Aug-02 3
22-Aug-02 3
23-Aug-02 3
24-Aug-02 3
25-Aug-02 3
26-Aug-02 3
27-Aug-02 3
28-Aug-02 3
29-Aug-02 3
30-Aug-02 3
31-Aug-02 3
1-Sep-02 3
2-Sep-02 3
3-Sep-02 3
4-Sep-02 3
5-Sep-02 3
6-Sep-02 3
7-Sep-02 3
8-Sep-02 3
9-Sep-02 3
10-Sep-02 210
11-Sep-02 210
12-Sep-02 584
13-Sep-02 584
14-Sep-02 1097
15-Sep-02 1097
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1136
22-Sep-02 539
23-Sep-02 539
24-Sep-02 1027
25-Sep-02 975
26-Sep-02 1318
27-Sep-02 1318
28-Sep-02 1184
29-Sep-02 1673
30-Sep-02 1729
1-Oct-02 1623
2-Oct-02 1547
3-Oct-02 790
4-Oct-02 802
5-Oct-02 816
6-Oct-02 816
7-Oct-02 1488
8-Oct-02 2100
9-Oct-02 2482
10-Oct-02 2347
11-Oct-02 2707
12-Oct-02 1786
13-Oct-02 1786
14-Oct-02 940
15-Oct-02 1584
16-Oct-02 1822
17-Oct-02 1414
18-Oct-02 1822
19-Oct-02 1453
20-Oct-02 1103
21-Oct-02 1955
22-Oct-02 1955
23-Oct-02 807
24-Oct-02 1514
25-Oct-02 1323
26-Oct-02 1529
27-Oct-02 2542
28-Oct-02 1459
29-Oct-02 1459
30-Oct-02 1424
31-Oct-02 1261
1-Nov-02 1322
2-Nov-02 1576
3-Nov-02 1476
4-Nov-02 1581
5-Nov-02 1786
6-Nov-02 1233
7-Nov-02 1233
8-Nov-02 933
9-Nov-02 1398
10-Nov-02 1501
11-Nov-02 1770
12-Nov-02 2378
13-Nov-02 1832
14-Nov-02 1832
15-Nov-02 1367
16-Nov-02 1074
17-Nov-02 1255
18-Nov-02 1065
19-Nov-02 952
20-Nov-02 940
21-Nov-02 520
22-Nov-02 525
23-Nov-02 525
24-Nov-02 379
25-Nov-02 1069
26-Nov-02 1335
27-Nov-02 1004
28-Nov-02 1433
29-Nov-02 509
30-Nov-02 509
1-Dec-02 710
2-Dec-02 778
3-Dec-02 597
4-Dec-02 812
5-Dec-02 814
6-Dec-02 771
7-Dec-02 1144
8-Dec-02 479
9-Dec-02 479
10-Dec-02 144
11-Dec-02 247
12-Dec-02 279
13-Dec-02 541
14-Dec-02 775
15-Dec-02 667
16-Dec-02 667
17-Dec-02 138
18-Dec-02 382
19-Dec-02 420
20-Dec-02 425
21-Dec-02 570
22-Dec-02 295
23-Dec-02 265
24-Dec-02 160
25-Dec-02 160
26-Dec-02 122
27-Dec-02 265
28-Dec-02 289
29-Dec-02 325
30-Dec-02 469
31-Dec-02 424
1-Jan-03 424
2-Jan-03 350
3-Jan-03 436
4-Jan-03 343
5-Jan-03 394
6-Jan-03 444
7-Jan-03 321
8-Jan-03 389
9-Jan-03 269
10-Jan-03 269
11-Jan-03 306
12-Jan-03 400
13-Jan-03 452
14-Jan-03 377
15-Jan-03 406
16-Jan-03 186
17-Jan-03 186
18-Jan-03 144
19-Jan-03 300
20-Jan-03 231
21-Jan-03 188
22-Jan-03 202
23-Jan-03 9
24-Jan-03 37
25-Jan-03 68
26-Jan-03 68
27-Jan-03 92
28-Jan-03 134
29-Jan-03 137
30-Jan-03 154
31-Jan-03 201
1-Feb-03 101
2-Feb-03 101
3-Feb-03 3
4-Feb-03 37
5-Feb-03 12
6-Feb-03 34
7-Feb-03 84
8-Feb-03 6
9-Feb-03 37
10-Feb-03 3
11-Feb-03 3
12-Feb-03 3
13-Feb-03 3
14-Feb-03 17
15-Feb-03 3
16-Feb-03 3
17-Feb-03 3
18-Feb-03 3
19-Feb-03 3
20-Feb-03 3
21-Feb-03 3
22-Feb-03 3
23-Feb-03 33
24-Feb-03 3
25-Feb-03 28
26-Feb-03 3
27-Feb-03 3
28-Feb-03 3
1-Mar-03 3
2-Mar-03 3
3-Mar-03 3
4-Mar-03 3
5-Mar-03 3
6-Mar-03 3
7-Mar-03 3
8-Mar-03 3
9-Mar-03 46
10-Mar-03 38
11-Mar-03 38
12-Mar-03 3
13-Mar-03 3
14-Mar-03 3
15-Mar-03 3
16-Mar-03 3
17-Mar-03 3
18-Mar-03 3
19-Mar-03 3
20-Mar-03 3
21-Mar-03 3
22-Mar-03 3
23-Mar-03 3
24-Mar-03 3
25-Mar-03 3
26-Mar-03 3
27-Mar-03 3
28-Mar-03 3
29-Mar-03 3
30-Mar-03 3
31-Mar-03 3
1-Apr-03 3
2-Apr-03 3
3-Apr-03 3
4-Apr-03 3
5-Apr-03 8
6-Apr-03 3
7-Apr-03 3
8-Apr-03 3
9-Apr-03 3
10-Apr-03 3
11-Apr-03 3
12-Apr-03 3
13-Apr-03 3
14-Apr-03 3
15-Apr-03 3
16-Apr-03 3
17-Apr-03 3
18-Apr-03 3
19-Apr-03 3
20-Apr-03 3
21-Apr-03 3
22-Apr-03 3
23-Apr-03 3
24-Apr-03 3
25-Apr-03 193