Site ID: 256 Lat. 15.9518 Thailand Phichit
River: Chao Phraya Long. 100.3009
Site name: Chum Saeng Contributing area: 57536 km2 Ratio to Comparison Station: 0.11
Latest measurement: 30-Jul-10 Mean annual runoff: 711 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 201.2 mm
Latest M/C ratio: 1.10 Seven day total: 0.0 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 14.8 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 5898 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 6103 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
676 2002 no data no data no data no data no data no data no data 3.5 133.1 222.3 213.9 103.5
475 2003 14.4 6.9 24.9 79.9 16.4 1.9 1.3 31.9 47.1 140.9 62.6 47.0
718 2004 4.1 3.0 18.0 31.8 54.5 46.1 108.0 111.3 115.1 123.5 79.5 22.9
844 2005 1.3 0.1 42.7 79.1 28.0 0.1 0.8 14.2 82.3 143.9 283.6 167.5
626 2006 51.0 4.4 20.8 65.2 28.8 0.2 1.5 38.8 140.6 274.4 0.0 0.0
794 2007 43.8 2.2 22.4 108.7 32.9 0.1 0.2 18.3 90.1 184.4 189.1 101.8
802 2008 45.0 5.9 24.0 98.6 33.6 0.4 0.2 23.5 87.3 146.8 184.3 152.9
718 2009 59.3 5.0 12.8 108.7 45.7 1.0 0.2 22.5 39.0 127.8 163.7 132.8
201 2010 33.1 7.0 54.4 88.1 18.3 0.1 0.2 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 711 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 31
14-Aug-02 15
15-Aug-02 227
16-Aug-02 3
17-Aug-02 3
18-Aug-02 3
19-Aug-02 3
20-Aug-02 16
21-Aug-02 114
22-Aug-02 131
23-Aug-02 3
24-Aug-02 3
25-Aug-02 108
26-Aug-02 265
27-Aug-02 172
28-Aug-02 57
29-Aug-02 3
30-Aug-02 365
31-Aug-02 821
1-Sep-02 1768
2-Sep-02 1768
3-Sep-02 780
4-Sep-02 437
5-Sep-02 96
6-Sep-02 959
7-Sep-02 1252
8-Sep-02 3547
9-Sep-02 3547
10-Sep-02 4595
11-Sep-02 3638
12-Sep-02 4257
13-Sep-02 4257
14-Sep-02 3779
15-Sep-02 5972
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02
22-Sep-02 3314
23-Sep-02 3314
24-Sep-02 5700
25-Sep-02 5700
26-Sep-02 5968
27-Sep-02 6002
28-Sep-02 5491
29-Sep-02 5853
30-Sep-02 6607
1-Oct-02 6662
2-Oct-02 6589
3-Oct-02 5318
4-Oct-02 5318
5-Oct-02 5278
6-Oct-02 5435
7-Oct-02 5924
8-Oct-02 5768
9-Oct-02 5526
10-Oct-02
11-Oct-02
12-Oct-02 6222
13-Oct-02 5480
14-Oct-02 5932
15-Oct-02 6592
16-Oct-02 6594
17-Oct-02 5776
18-Oct-02 5450
19-Oct-02 4015
20-Oct-02 4015
21-Oct-02 3624
22-Oct-02 4636
23-Oct-02 4156
24-Oct-02 4495
25-Oct-02 6001
26-Oct-02 4404
27-Oct-02 4404
28-Oct-02 4439
29-Oct-02 3080
30-Oct-02 3085
31-Oct-02 3836
1-Nov-02 3428
2-Nov-02 5617
3-Nov-02 6731
4-Nov-02 6989
5-Nov-02 6989
6-Nov-02 6396
7-Nov-02 6559
8-Nov-02 6250
9-Nov-02 5836
10-Nov-02 5931
11-Nov-02 5026
12-Nov-02 5026
13-Nov-02 4562
14-Nov-02 4778
15-Nov-02 3740
16-Nov-02 4212
17-Nov-02 3971
18-Nov-02 3504
19-Nov-02 4658
20-Nov-02 3791
21-Nov-02 3791
22-Nov-02 4751
23-Nov-02 4704
24-Nov-02 5113
25-Nov-02 4233
26-Nov-02 3588
27-Nov-02 2548
28-Nov-02 2548
29-Nov-02 3142
30-Nov-02 4017
1-Dec-02 4100
2-Dec-02 4155
3-Dec-02 4282
4-Dec-02 3204
5-Dec-02 3462
6-Dec-02 3833
7-Dec-02 3833
8-Dec-02 3344
9-Dec-02 3312
10-Dec-02 2508
11-Dec-02 2979
12-Dec-02 3589
13-Dec-02 3158
14-Dec-02 3158
15-Dec-02 1596
16-Dec-02 1537
17-Dec-02 1118
18-Dec-02 1328
19-Dec-02 1490
20-Dec-02 1333
21-Dec-02 1473
22-Dec-02 958
23-Dec-02 958
24-Dec-02 817
25-Dec-02 1048
26-Dec-02 1090
27-Dec-02 985
28-Dec-02 1157
29-Dec-02 980
30-Dec-02 980
31-Dec-02 1137
1-Jan-03 1137
2-Jan-03 582
3-Jan-03 503
4-Jan-03 223
5-Jan-03 362
6-Jan-03 490
7-Jan-03 578
8-Jan-03 578
9-Jan-03 297
10-Jan-03 395
11-Jan-03 338
12-Jan-03 392
13-Jan-03 544
14-Jan-03 411
15-Jan-03 411
16-Jan-03 292
17-Jan-03 245
18-Jan-03 205
19-Jan-03 217
20-Jan-03 203
21-Jan-03 211
22-Jan-03 215
23-Jan-03 229
24-Jan-03 229
25-Jan-03 65
26-Jan-03 74
27-Jan-03 3
28-Jan-03 3
29-Jan-03 3
30-Jan-03 62
31-Jan-03 62
1-Feb-03 77
2-Feb-03 18
3-Feb-03 3
4-Feb-03 3
5-Feb-03 3
6-Feb-03 3
7-Feb-03 3
8-Feb-03 3
9-Feb-03 3
10-Feb-03 3
11-Feb-03 3
12-Feb-03 3
13-Feb-03 3
14-Feb-03 3
15-Feb-03 3
16-Feb-03 3
17-Feb-03 876
18-Feb-03 894
19-Feb-03 721
20-Feb-03 571
21-Feb-03 556
22-Feb-03 290
23-Feb-03 131
24-Feb-03 125
25-Feb-03 125
26-Feb-03 3
27-Feb-03 88
28-Feb-03 65
1-Mar-03 109
2-Mar-03 246
3-Mar-03 218
4-Mar-03 218
5-Mar-03 488
6-Mar-03 435
7-Mar-03 535
8-Mar-03 499
9-Mar-03 377
10-Mar-03 346
11-Mar-03 346
12-Mar-03 372
13-Mar-03 372
14-Mar-03 281
15-Mar-03 265
16-Mar-03 179
17-Mar-03 224
18-Mar-03 279
19-Mar-03 379
20-Mar-03 379
21-Mar-03 3
22-Mar-03 3
23-Mar-03 38
24-Mar-03 284
25-Mar-03 655
26-Mar-03 875
27-Mar-03 1433
28-Mar-03 1598
29-Mar-03 1598
30-Mar-03 1804
31-Mar-03 1725
1-Apr-03 1759
2-Apr-03 2296
3-Apr-03 2471
4-Apr-03 3467
5-Apr-03 3467
6-Apr-03 1576