Site ID: 241 Lat. 15.6829 Thailand Chaiyaphum
River: Chi Long. 101.9963
Site name: Chaiyaphum Contributing area: 6833 km2 Ratio to Comparison Station: 0.01
Latest measurement: 29-Jul-10 Mean annual runoff: 1947 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 943.8 mm
Latest M/C ratio: 1.41 Seven day total: 77.7 mm
Estimated current discharge: 1277 m3/sec Percent of mean 7-day total: 434.1 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 2720 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2543 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
1352 2002 no data no data no data no data no data no data no data 6.2 503.0 390.3 268.1 184.3
914 2003 130.0 89.7 120.0 37.5 44.1 149.0 83.9 36.7 102.7 39.5 32.1 48.4
851 2004 13.3 42.3 20.7 33.2 171.2 317.9 183.2 52.4 1.3 1.3 2.0 12.7
1000 2005 5.1 7.2 3.3 30.7 9.2 26.0 84.5 8.1 145.4 67.5 332.5 280.5
1644 2006 139.8 69.0 119.4 68.1 112.4 105.1 19.6 52.5 399.6 558.3 0.0 0.0
1769 2007 197.7 128.6 87.8 57.5 153.6 199.8 28.2 15.7 137.5 370.2 187.3 205.0
4143 2008 192.1 104.5 62.4 621.0 638.9 681.7 380.8 166.6 336.1 240.1 361.6 357.6
3309 2009 351.3 178.5 102.0 132.4 732.4 500.0 126.7 22.5 227.0 402.2 233.7 300.1
944 2010 277.9 203.1 96.6 91.2 29.3 15.4 214.2 16.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 1947 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 33
31-Jul-02 178
1-Aug-02 178
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 91
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 74
31-Aug-02 79
1-Sep-02 129
2-Sep-02 129
3-Sep-02 580
4-Sep-02 337
5-Sep-02 737
6-Sep-02 932
7-Sep-02 837
8-Sep-02 1048
9-Sep-02 934
10-Sep-02 538
11-Sep-02 538
12-Sep-02 2149
13-Sep-02 2149
14-Sep-02 3914
15-Sep-02 3914
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1184
22-Sep-02 1480
23-Sep-02 1480
24-Sep-02 1856
25-Sep-02 2258
26-Sep-02 2827
27-Sep-02 2827
28-Sep-02 2675
29-Sep-02 2302
30-Sep-02 2022
1-Oct-02 1927
2-Oct-02 1670
3-Oct-02 1960
4-Oct-02 1960
5-Oct-02 1869
6-Oct-02 1692
7-Oct-02 1324
8-Oct-02 1213
9-Oct-02 1089
10-Oct-02 1070
11-Oct-02 1081
12-Oct-02 1140
13-Oct-02 1140
14-Oct-02 1116
15-Oct-02 1024
16-Oct-02 1021
17-Oct-02 866
18-Oct-02 684
19-Oct-02 504
20-Oct-02 504
21-Oct-02 680
22-Oct-02 668
23-Oct-02 594
24-Oct-02 594
25-Oct-02 491
26-Oct-02 404
27-Oct-02 486
28-Oct-02 535
29-Oct-02 535
30-Oct-02 491
31-Oct-02 527
1-Nov-02 444
2-Nov-02 668
3-Nov-02 871
4-Nov-02 1264
5-Nov-02 1264
6-Nov-02 963
7-Nov-02 814
8-Nov-02 512
9-Nov-02 689
10-Nov-02 718
11-Nov-02 752
12-Nov-02 933
13-Nov-02 799
14-Nov-02 799
15-Nov-02 977
16-Nov-02 883
17-Nov-02 831
18-Nov-02 761
19-Nov-02 664
20-Nov-02 541
21-Nov-02 541
22-Nov-02 586
23-Nov-02 516
24-Nov-02 453
25-Nov-02 480
26-Nov-02 396
27-Nov-02 441
28-Nov-02 536
29-Nov-02 556
30-Nov-02 556
1-Dec-02 510
2-Dec-02 480
3-Dec-02 418
4-Dec-02 516
5-Dec-02 567
6-Dec-02 595
7-Dec-02 595
8-Dec-02 604
9-Dec-02 585
10-Dec-02 559
11-Dec-02 551
12-Dec-02 492
13-Dec-02 495
14-Dec-02 540
15-Dec-02 428
16-Dec-02 428
17-Dec-02 402
18-Dec-02 495
19-Dec-02 595
20-Dec-02 534
21-Dec-02 553
22-Dec-02 537
23-Dec-02 537
24-Dec-02 418
25-Dec-02 408
26-Dec-02 251
27-Dec-02 268
28-Dec-02 297
29-Dec-02 239
30-Dec-02 269
31-Dec-02 412
1-Jan-03 412
2-Jan-03 541
3-Jan-03 491
4-Jan-03 421
5-Jan-03 374
6-Jan-03 334
7-Jan-03 316
8-Jan-03 316
9-Jan-03 381
10-Jan-03 426
11-Jan-03 388
12-Jan-03 390
13-Jan-03 382
14-Jan-03 392
15-Jan-03 466
16-Jan-03 357
17-Jan-03 357
18-Jan-03 199
19-Jan-03 222
20-Jan-03 246
21-Jan-03 252
22-Jan-03 267
23-Jan-03 306
24-Jan-03 306
25-Jan-03 225
26-Jan-03 277
27-Jan-03 219
28-Jan-03 247
29-Jan-03 297
30-Jan-03 224
31-Jan-03 247
1-Feb-03 184
2-Feb-03 184
3-Feb-03 161
4-Feb-03 202
5-Feb-03 202
6-Feb-03 179
7-Feb-03 209
8-Feb-03 193
9-Feb-03 193
10-Feb-03 191
11-Feb-03 220
12-Feb-03 159
13-Feb-03 27
14-Feb-03 3
15-Feb-03 3
16-Feb-03 3
17-Feb-03 148
18-Feb-03 148
19-Feb-03 426
20-Feb-03 368
21-Feb-03 420
22-Feb-03 405
23-Feb-03 314
24-Feb-03 375
25-Feb-03 375
26-Feb-03 474
27-Feb-03 586
28-Feb-03 745
1-Mar-03 512
2-Mar-03 493
3-Mar-03 285
4-Mar-03 46
5-Mar-03 249
6-Mar-03 249
7-Mar-03 330
8-Mar-03 595
9-Mar-03 892
10-Mar-03 931
11-Mar-03 931
12-Mar-03 629
13-Mar-03 629
14-Mar-03 3
15-Mar-03 3
16-Mar-03 3
17-Mar-03 3
18-Mar-03 365
19-Mar-03 299
20-Mar-03 233
21-Mar-03 329
22-Mar-03 329
23-Mar-03 168
24-Mar-03 88
25-Mar-03 3
26-Mar-03 3
27-Mar-03 22
28-Mar-03 235
29-Mar-03 235
30-Mar-03 244
31-Mar-03 155
1-Apr-03 68
2-Apr-03 67
3-Apr-03 67
4-Apr-03 152
5-Apr-03 125
6-Apr-03 3
7-Apr-03 3
8-Apr-03 61
9-Apr-03 63
10-Apr-03 90
11-Apr-03 42
12-Apr-03 6
13-Apr-03 38
14-Apr-03 38
15-Apr-03 22
16-Apr-03 3