Site ID: 258 Lat. 15.9120 Thailand Phetchabun
River: Mae Nam Pa Sak Long. 101.0788
Site name: Phetchabun Contributing area: 7007 km2 Ratio to Comparison Station: 0.01
Latest measurement: 30-Jul-10 Mean annual runoff: 380 mm (2003-2009)
Hydrologic status: 1 Low flow Total runoff this year (2010): 71.7 mm
Latest M/C ratio: 1.10 Seven day total: 0.3 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 10.6 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 1541 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1411 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
476 2002 no data no data no data no data no data no data no data 53.6 216.8 174.8 28.7 1.6
44 2003 1.3 1.1 1.3 1.2 1.3 2.0 1.3 24.3 5.2 1.6 1.0 2.1
237 2004 1.3 1.2 1.3 1.2 1.3 59.7 95.5 60.6 10.7 1.6 1.2 1.3
232 2005 1.3 1.1 1.3 15.6 13.5 18.3 6.8 4.2 3.8 4.9 131.4 29.7
505 2006 3.0 6.0 14.2 1.2 1.3 8.9 68.3 8.7 144.7 249.1 0.0 0.0
730 2007 2.0 1.2 5.6 14.0 27.1 1.2 1.3 1.3 127.3 346.3 153.9 48.5
406 2008 5.2 2.0 1.6 1.2 5.1 59.1 5.3 9.2 86.0 99.6 94.3 37.7
509 2009 1.5 1.6 1.3 6.8 20.2 1.2 1.6 28.4 150.5 224.0 48.5 23.5
72 2010 1.6 15.6 33.1 12.4 6.4 1.2 1.3 0.1 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 380 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-02 227
10-Aug-02 192
11-Aug-02 216
12-Aug-02 201
13-Aug-02 193
14-Aug-02 61
15-Aug-02 3
16-Aug-02 3
17-Aug-02 3
18-Aug-02 228
19-Aug-02 290
20-Aug-02 373
21-Aug-02 348
22-Aug-02 357
23-Aug-02 208
24-Aug-02 208
25-Aug-02 400
26-Aug-02 397
27-Aug-02 3
28-Aug-02 3
29-Aug-02 3
30-Aug-02 3
31-Aug-02 426
1-Sep-02 746
2-Sep-02 746
3-Sep-02 408
4-Sep-02 287
5-Sep-02 334
6-Sep-02 1033
7-Sep-02 1251
8-Sep-02 1320
9-Sep-02 1320
10-Sep-02 303
11-Sep-02 418
12-Sep-02 454
13-Sep-02 454
14-Sep-02 495
15-Sep-02 313
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02
22-Sep-02 1207
23-Sep-02 1207
24-Sep-02 1340
25-Sep-02 1340
26-Sep-02 576
27-Sep-02 800
28-Sep-02 191
29-Sep-02 410
30-Sep-02 631
1-Oct-02 565
2-Oct-02 1090
3-Oct-02 944
4-Oct-02 944
5-Oct-02 230
6-Oct-02 503
7-Oct-02 353
8-Oct-02 509
9-Oct-02 960
10-Oct-02 839
11-Oct-02 839
12-Oct-02 791
13-Oct-02 680
14-Oct-02 251
15-Oct-02 275
16-Oct-02 130
17-Oct-02 258
18-Oct-02 633
19-Oct-02 746
20-Oct-02 746
21-Oct-02 368
22-Oct-02 393
23-Oct-02 300
24-Oct-02 165
25-Oct-02 171
26-Oct-02 34
27-Oct-02 34
28-Oct-02 148
29-Oct-02 149
30-Oct-02 49
31-Oct-02 78
1-Nov-02 62
2-Nov-02 3
3-Nov-02 3
4-Nov-02 3
5-Nov-02 3
6-Nov-02 3
7-Nov-02 23
8-Nov-02 166
9-Nov-02 245
10-Nov-02 366
11-Nov-02 348
12-Nov-02 348
13-Nov-02 199
14-Nov-02 202
15-Nov-02 34
16-Nov-02 94
17-Nov-02 90
18-Nov-02 3
19-Nov-02 33
20-Nov-02 3
21-Nov-02 3
22-Nov-02 3
23-Nov-02 3
24-Nov-02 3
25-Nov-02 3
26-Nov-02 69
27-Nov-02 3
28-Nov-02 3
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1-Dec-02 3
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21-Dec-02 28
22-Dec-02 3
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1-Jan-03 3
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