Site ID: 255 Lat. 16.4173 Thailand Phichit
River: Nan Long. 100.4038
Site name: Phichit Contributing area: 31403 km2 Ratio to Comparison Station: 0.06
Latest measurement: 30-Jul-10 Mean annual runoff: 249 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 95.4 mm
Latest M/C ratio: 1.23 Seven day total: 6.9 mm
Estimated current discharge: 484 m3/sec Percent of mean 7-day total: 115.0 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 2306 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2174 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
82 2002 no data no data no data no data no data no data no data 12.2 50.1 18.9 0.3 0.3
30 2003 0.3 1.2 4.7 1.2 0.3 0.3 0.3 1.7 15.1 4.8 0.2 0.3
319 2004 0.3 31.5 1.4 0.5 3.5 60.8 118.0 93.2 9.1 0.3 0.5 0.3
261 2005 0.3 0.3 3.3 3.2 0.4 0.4 8.2 38.4 59.6 46.9 92.9 7.6
240 2006 0.2 0.2 1.4 1.3 5.2 0.7 13.4 30.1 83.0 104.5 0.0 0.0
414 2007 0.3 0.3 13.3 9.3 0.3 8.8 31.8 45.3 86.5 112.5 96.6 9.0
253 2008 0.3 0.8 22.7 10.7 0.3 0.3 29.7 22.3 36.1 46.4 69.6 13.8
225 2009 0.3 0.3 7.7 4.4 0.3 0.3 2.1 1.1 8.3 91.8 80.3 28.6
95 2010 1.0 3.1 45.2 28.0 0.3 0.3 14.7 2.9 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 249 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 28
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-02 539
28-Aug-02 681
29-Aug-02 754
30-Aug-02 1110
31-Aug-02 1273
1-Sep-02 855
2-Sep-02 842
3-Sep-02 133
4-Sep-02 3
5-Sep-02 3
6-Sep-02 698
7-Sep-02 1062
8-Sep-02 2652
9-Sep-02 2652
10-Sep-02 1427
11-Sep-02 1453
12-Sep-02 494
13-Sep-02 494
14-Sep-02 328
15-Sep-02 3
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02
22-Sep-02 3
23-Sep-02 3
24-Sep-02 332
25-Sep-02 332
26-Sep-02 487
27-Sep-02 970
28-Sep-02 842
29-Sep-02 943
30-Sep-02 1205
1-Oct-02 413
2-Oct-02 392
3-Oct-02 3
4-Oct-02 3
5-Oct-02 3
6-Oct-02 477
7-Oct-02 1057
8-Oct-02 1286
9-Oct-02 1845
10-Oct-02 550
11-Oct-02 550
12-Oct-02 13
13-Oct-02 31
14-Oct-02 3
15-Oct-02 57
16-Oct-02 3
17-Oct-02 3
18-Oct-02 138
19-Oct-02 3
20-Oct-02 3
21-Oct-02 3
22-Oct-02 3
23-Oct-02 3
24-Oct-02 3
25-Oct-02 3
26-Oct-02 3
27-Oct-02 3
28-Oct-02 3
29-Oct-02 3
30-Oct-02 3
31-Oct-02 3
1-Nov-02 3
2-Nov-02 3
3-Nov-02 3
4-Nov-02 25
5-Nov-02 3
6-Nov-02 3
7-Nov-02 3
8-Nov-02 3
9-Nov-02 3
10-Nov-02 3
11-Nov-02 3
12-Nov-02 3
13-Nov-02 3
14-Nov-02 3
15-Nov-02 3
16-Nov-02 3
17-Nov-02 3
18-Nov-02 3
19-Nov-02 3
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 3
27-Nov-02 3
28-Nov-02 3
29-Nov-02 3
30-Nov-02 3
1-Dec-02 3
2-Dec-02 3
3-Dec-02 3
4-Dec-02 3
5-Dec-02 3
6-Dec-02 3
7-Dec-02 3
8-Dec-02 3
9-Dec-02 3
10-Dec-02 3
11-Dec-02 3
12-Dec-02 3
13-Dec-02 3
14-Dec-02 3
15-Dec-02 3
16-Dec-02 3
17-Dec-02 3
18-Dec-02 3
19-Dec-02 3
20-Dec-02 3
21-Dec-02 3
22-Dec-02 3
23-Dec-02 3
24-Dec-02 3
25-Dec-02 3
26-Dec-02 3
27-Dec-02 3
28-Dec-02 3
29-Dec-02 3
30-Dec-02 3
31-Dec-02 3
1-Jan-03 3
2-Jan-03 3
3-Jan-03 3
4-Jan-03 3
5-Jan-03 3
6-Jan-03 3
7-Jan-03 3
8-Jan-03 3
9-Jan-03 3
10-Jan-03 3
11-Jan-03 3
12-Jan-03 3
13-Jan-03 3
14-Jan-03 3
15-Jan-03 3
16-Jan-03 3
17-Jan-03 3
18-Jan-03 3
19-Jan-03 3
20-Jan-03 3
21-Jan-03 3
22-Jan-03 3
23-Jan-03 3
24-Jan-03 3
25-Jan-03 3
26-Jan-03 3
27-Jan-03 3
28-Jan-03 3
29-Jan-03 3
30-Jan-03 3
31-Jan-03 3
1-Feb-03 3
2-Feb-03 3
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-03 105
16-Feb-03 105
17-Feb-03 23
18-Feb-03 3
19-Feb-03 3
20-Feb-03 3
21-Feb-03 3
22-Feb-03 3
23-Feb-03 3
24-Feb-03 3
25-Feb-03 3
26-Feb-03 107
27-Feb-03 16
28-Feb-03 3
1-Mar-03 19
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 3
10-Mar-03 24
11-Mar-03 24
12-Mar-03 3
13-Mar-03 3
14-Mar-03 139
15-Mar-03 106
16-Mar-03 264
17-Mar-03 287
18-Mar-03 271
19-Mar-03 216
20-Mar-03 216
21-Mar-03 3
22-Mar-03 3
23-Mar-03 70
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 10
5-Apr-03 10
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 43
13-Apr-03 140
14-Apr-03 79
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 3
26-Apr-03 3
27-Apr-03 3
28-Apr-03 85
29-Apr-03 3
30-Apr-03 3
1-May-03 3
2-May-03 3
3-May-03 3
4-May-03 3
5-May-03 3