Site ID: 242 Lat. 16.3120 Thailand Maha Sarakham
River: Chi Long. 102.9910
Site name: Kosum Phisai Contributing area: 28616 km2 Ratio to Comparison Station: 0.05
Latest measurement: 29-Jul-10 Mean annual runoff: 292 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 135.5 mm
Latest M/C ratio: 1.10 Seven day total: 0.1 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 2.2 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 1952 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1839 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
575 2002 no data no data no data no data no data no data no data 25.8 84.8 229.4 150.3 84.3
407 2003 111.5 56.1 6.0 13.7 10.3 22.1 57.8 26.6 34.0 22.0 23.1 23.9
458 2004 95.1 77.8 31.1 9.0 46.8 52.5 43.0 47.9 5.2 14.2 23.1 11.9
231 2005 82.6 96.4 11.6 4.3 0.4 1.6 17.5 7.8 3.0 0.3 4.9 0.5
32 2006 0.5 0.2 0.4 1.4 7.8 10.6 7.5 0.3 0.3 3.3 0.0 0.0
196 2007 46.8 78.3 11.1 0.3 1.9 11.0 10.3 5.8 0.3 10.7 12.9 6.4
461 2008 63.7 39.2 3.9 1.7 37.2 14.7 8.2 10.9 27.0 95.7 89.5 69.3
256 2009 115.2 59.6 3.0 1.6 26.7 7.0 3.0 1.4 0.3 3.1 15.1 20.0
136 2010 98.6 12.4 0.3 0.5 10.1 11.9 1.0 0.7 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 292 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-02 375
23-Jul-02 375
24-Jul-02 520
25-Jul-02 520
26-Jul-02 460
27-Jul-02 572
28-Jul-02 588
29-Jul-02 595
30-Jul-02 644
31-Jul-02 570
1-Aug-02 616
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 613
10-Aug-02 613
11-Aug-02 623
12-Aug-02 546
13-Aug-02 678
14-Aug-02 681
15-Aug-02 696
16-Aug-02 749
17-Aug-02 619
18-Aug-02 355
19-Aug-02 129
20-Aug-02 3
21-Aug-02 3
22-Aug-02 3
23-Aug-02 3
24-Aug-02 356
25-Aug-02 243
26-Aug-02 243
27-Aug-02 307
28-Aug-02 305
29-Aug-02 40
30-Aug-02 70
31-Aug-02 34
1-Sep-02 3
2-Sep-02 3
3-Sep-02 3
4-Sep-02 3
5-Sep-02 125
6-Sep-02 88
7-Sep-02 88
8-Sep-02 281
9-Sep-02 301
10-Sep-02 545
11-Sep-02 545
12-Sep-02 725
13-Sep-02 725
14-Sep-02 1021
15-Sep-02 1021
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1231
22-Sep-02 1865
23-Sep-02 1865
24-Sep-02 2097
25-Sep-02 2547
26-Sep-02 2828
27-Sep-02 2828
28-Sep-02 2176
29-Sep-02 2736
30-Sep-02 2447
1-Oct-02 2594
2-Oct-02 3039
3-Oct-02 2704
4-Oct-02 2962
5-Oct-02 2786
6-Oct-02 2786
7-Oct-02 2205
8-Oct-02 2676
9-Oct-02 2661
10-Oct-02 2496
11-Oct-02 2867
12-Oct-02 2374
13-Oct-02 2374
14-Oct-02 2507
15-Oct-02 2454
16-Oct-02 2370
17-Oct-02 2702
18-Oct-02 2798
19-Oct-02 2775
20-Oct-02 3006
21-Oct-02 2374
22-Oct-02 2374
23-Oct-02 1769
24-Oct-02 2156
25-Oct-02 2003
26-Oct-02 2258
27-Oct-02 2916
28-Oct-02 1975
29-Oct-02 1975
30-Oct-02 1254
31-Oct-02 1788
1-Nov-02 1988
2-Nov-02 1972
3-Nov-02 2253
4-Nov-02 1728
5-Nov-02 1676
6-Nov-02 1701
7-Nov-02 2241
8-Nov-02 2469
9-Nov-02 2281
10-Nov-02 2393
11-Nov-02 1412
12-Nov-02 1141
13-Nov-02 823
14-Nov-02 823
15-Nov-02 1452
16-Nov-02 1659
17-Nov-02 1491
18-Nov-02 1702
19-Nov-02 1675
20-Nov-02 1633
21-Nov-02 2138
22-Nov-02 1656
23-Nov-02 1656
24-Nov-02 1219
25-Nov-02 1498
26-Nov-02 1554
27-Nov-02 1495
28-Nov-02 1726
29-Nov-02 1167
30-Nov-02 1167
1-Dec-02 730
2-Dec-02 1035
3-Dec-02 1109
4-Dec-02 1095
5-Dec-02 1310
6-Dec-02 1055
7-Dec-02 994
8-Dec-02 972
9-Dec-02 972
10-Dec-02 977
11-Dec-02 1123
12-Dec-02 1173
13-Dec-02 1168
14-Dec-02 1281
15-Dec-02 985
16-Dec-02 985
17-Dec-02 837
18-Dec-02 799
19-Dec-02 744
20-Dec-02 751
21-Dec-02 714
22-Dec-02 770
23-Dec-02 830
24-Dec-02 837
25-Dec-02 837
26-Dec-02 818
27-Dec-02 501
28-Dec-02 362
29-Dec-02 595
30-Dec-02 482
31-Dec-02 1078
1-Jan-03 1078
2-Jan-03 1059
3-Jan-03 1111
4-Jan-03 1224
5-Jan-03 1302
6-Jan-03 1395
7-Jan-03 1432
8-Jan-03 1439
9-Jan-03 1114
10-Jan-03 1114
11-Jan-03 1004
12-Jan-03 1241
13-Jan-03 1419
14-Jan-03 1392
15-Jan-03 1529
16-Jan-03 1234
17-Jan-03 1234
18-Jan-03 1169
19-Jan-03 994
20-Jan-03 1073
21-Jan-03 1068
22-Jan-03 1019
23-Jan-03 1256
24-Jan-03 1207
25-Jan-03 1191
26-Jan-03 1191
27-Jan-03 1150
28-Jan-03 1045
29-Jan-03 1063
30-Jan-03 1133
31-Jan-03 1056
1-Feb-03 1173
2-Feb-03 1173
3-Feb-03 940
4-Feb-03 935
5-Feb-03 862
6-Feb-03 724
7-Feb-03 700
8-Feb-03 631
9-Feb-03 517
10-Feb-03 783
11-Feb-03 783
12-Feb-03 853
13-Feb-03 858
14-Feb-03 857
15-Feb-03 740
16-Feb-03 688
17-Feb-03 538
18-Feb-03 538
19-Feb-03 452
20-Feb-03 487
21-Feb-03 491
22-Feb-03 509
23-Feb-03 567
24-Feb-03 624
25-Feb-03 644
26-Feb-03 251
27-Feb-03 251
28-Feb-03 3
1-Mar-03 3
2-Mar-03 3
3-Mar-03 3
4-Mar-03 106
5-Mar-03 292
6-Mar-03 292
7-Mar-03 263
8-Mar-03 44
9-Mar-03 3
10-Mar-03 3
11-Mar-03 3
12-Mar-03 3
13-Mar-03 3
14-Mar-03 81
15-Mar-03 22
16-Mar-03 3
17-Mar-03 12
18-Mar-03 3
19-Mar-03 3
20-Mar-03 3
21-Mar-03 120
22-Mar-03 120
23-Mar-03 228
24-Mar-03 177
25-Mar-03 82
26-Mar-03 41
27-Mar-03 44
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-03 129
6-Apr-03 230
7-Apr-03 230
8-Apr-03 156
9-Apr-03 90
10-Apr-03 200
11-Apr-03 197
12-Apr-03 128
13-Apr-03 178
14-Apr-03 148
15-Apr-03 150
16-Apr-03 150
17-Apr-03 3
18-Apr-03 3
19-Apr-03 3
20-Apr-03 3
21-Apr-03 3
22-Apr-03 347
23-Apr-03 347
24-Apr-03 331
25-Apr-03 291