Site ID: 236 Lat. 13.1454 Cambodia Batdambang
River: Batdambang Long. 103.3267
Site name: Batdambang Contributing area: 4730 km2 Ratio to Comparison Station: 0.01
Latest measurement: 29-Jul-10 Mean annual runoff: 282 mm (2003-2009)
Hydrologic status: 1 Low flow Total runoff this year (2010): 41.4 mm
Latest M/C ratio: 1.20 Seven day total: 1.4 mm
Estimated current discharge: 11 m3/sec Percent of mean 7-day total: 52.4 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 558 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 570 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
987 2002 no data no data no data no data no data no data no data 27.4 238.9 485.5 168.1 67.1
133 2003 16.0 6.7 6.0 5.8 6.0 5.8 6.0 6.0 13.1 29.4 23.5 8.3
392 2004 6.0 5.6 6.0 5.8 6.0 6.0 6.0 13.2 113.9 111.5 81.4 30.9
542 2005 8.2 5.4 6.0 8.3 24.2 8.8 6.0 6.6 136.5 266.7 53.1 12.1
218 2006 5.2 4.3 6.0 6.6 5.8 28.3 44.7 26.0 21.0 70.5 0.0 0.0
136 2007 6.0 5.4 6.0 6.0 7.7 7.6 13.4 6.2 7.6 35.8 27.9 6.1
147 2008 6.0 5.6 6.0 5.8 16.7 11.4 7.0 7.6 23.1 32.8 16.2 8.4
408 2009 6.0 5.4 10.0 5.8 75.8 21.3 6.0 6.4 41.5 172.4 50.0 7.0
41 2010 6.0 5.4 6.2 5.8 6.1 5.8 6.0 0.2 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 282 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 11
23-Jul-02 11
24-Jul-02 11
25-Jul-02 11
26-Jul-02 11
27-Jul-02 11
28-Jul-02 11
29-Jul-02 11
30-Jul-02 11
31-Jul-02 11
1-Aug-02 11
2-Aug-02
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 34
10-Aug-02 34
11-Aug-02 30
12-Aug-02 27
13-Aug-02 18
14-Aug-02 26
15-Aug-02 26
16-Aug-02 25
17-Aug-02 37
18-Aug-02 58
19-Aug-02 58
20-Aug-02 159
21-Aug-02 56
22-Aug-02 36
23-Aug-02 49
24-Aug-02 15
25-Aug-02 55
26-Aug-02 55
27-Aug-02 51
28-Aug-02 90
29-Aug-02 168
30-Aug-02 167
31-Aug-02 213
1-Sep-02 199
2-Sep-02 172
3-Sep-02 241
4-Sep-02 241
5-Sep-02 397
6-Sep-02 476
7-Sep-02 578
8-Sep-02 570
9-Sep-02 607
10-Sep-02 454
11-Sep-02 454
12-Sep-02 544
13-Sep-02 544
14-Sep-02 766
15-Sep-02 766
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 44
22-Sep-02 252
23-Sep-02 252
24-Sep-02 343
25-Sep-02 660
26-Sep-02 723
27-Sep-02 723
28-Sep-02 940
29-Sep-02 1042
30-Sep-02 1090
1-Oct-02 951
2-Oct-02 955
3-Oct-02 848
4-Oct-02 745
5-Oct-02 1101
6-Oct-02 1101
7-Oct-02 1141
8-Oct-02 1028
9-Oct-02 886
10-Oct-02 944
11-Oct-02 941
12-Oct-02 927
13-Oct-02 927
14-Oct-02 937
15-Oct-02 991
16-Oct-02 1040
17-Oct-02 1030
18-Oct-02 1116
19-Oct-02 1094
20-Oct-02 1070
21-Oct-02 1157
22-Oct-02 1157
23-Oct-02 973
24-Oct-02 978
25-Oct-02 892
26-Oct-02 488
27-Oct-02 370
28-Oct-02 154
29-Oct-02 154
30-Oct-02 275
31-Oct-02 206
1-Nov-02 242
2-Nov-02 325
3-Nov-02 326
4-Nov-02 456
5-Nov-02 507
6-Nov-02 369
7-Nov-02 369
8-Nov-02 313
9-Nov-02 343
10-Nov-02 322
11-Nov-02 342
12-Nov-02 402
13-Nov-02 362
14-Nov-02 362
15-Nov-02 295
16-Nov-02 362
17-Nov-02 422
18-Nov-02 400
19-Nov-02 461
20-Nov-02 385
21-Nov-02 322
22-Nov-02 126
23-Nov-02 126
24-Nov-02 51
25-Nov-02 99
26-Nov-02 146
27-Nov-02 174
28-Nov-02 260
29-Nov-02 265
30-Nov-02 265
1-Dec-02 221
2-Dec-02 208
3-Dec-02 169
4-Dec-02 184
5-Dec-02 191
6-Dec-02 165
7-Dec-02 170
8-Dec-02 138
9-Dec-02 138
10-Dec-02 161
11-Dec-02 167
12-Dec-02 167
13-Dec-02 154
14-Dec-02 154
15-Dec-02 123
16-Dec-02 123
17-Dec-02 93
18-Dec-02 87
19-Dec-02 90
20-Dec-02 96
21-Dec-02 105
22-Dec-02 79
23-Dec-02 59
24-Dec-02 42
25-Dec-02 42
26-Dec-02 64
27-Dec-02 65
28-Dec-02 62
29-Dec-02 54
30-Dec-02 53
31-Dec-02 47
1-Jan-03 47
2-Jan-03 55
3-Jan-03 49
4-Jan-03 61
5-Jan-03 51
6-Jan-03 50
7-Jan-03 41
8-Jan-03 22
9-Jan-03 49
10-Jan-03 49
11-Jan-03 58
12-Jan-03 37
13-Jan-03 19
14-Jan-03 18
15-Jan-03 12
16-Jan-03 15
17-Jan-03 15
18-Jan-03 25
19-Jan-03 19
20-Jan-03 25
21-Jan-03 22
22-Jan-03 17
23-Jan-03 11
24-Jan-03 11
25-Jan-03 11
26-Jan-03 11
27-Jan-03 20
28-Jan-03 15
29-Jan-03 14
30-Jan-03 15
31-Jan-03 12
1-Feb-03 17
2-Feb-03 17
3-Feb-03 29
4-Feb-03 18
5-Feb-03 27
6-Feb-03 19
7-Feb-03 12
8-Feb-03 14
9-Feb-03 11
10-Feb-03 11
11-Feb-03 11
12-Feb-03 11
13-Feb-03 11
14-Feb-03 11
15-Feb-03 11
16-Feb-03 11
17-Feb-03 11
18-Feb-03 11
19-Feb-03 11
20-Feb-03 11
21-Feb-03 11
22-Feb-03 11
23-Feb-03 11
24-Feb-03 11
25-Feb-03 11
26-Feb-03 11
27-Feb-03 11
28-Feb-03 11
1-Mar-03 11
2-Mar-03 11
3-Mar-03 11
4-Mar-03 11
5-Mar-03 11
6-Mar-03 11
7-Mar-03 11
8-Mar-03 11
9-Mar-03 11
10-Mar-03 11
11-Mar-03 11
12-Mar-03 11
13-Mar-03 11
14-Mar-03 11
15-Mar-03 11
16-Mar-03 11
17-Mar-03 11
18-Mar-03 11
19-Mar-03 11
20-Mar-03 11
21-Mar-03 11
22-Mar-03 11
23-Mar-03 11
24-Mar-03 11
25-Mar-03 11
26-Mar-03 11
27-Mar-03 11
28-Mar-03 11
29-Mar-03 11
30-Mar-03 11
31-Mar-03 11
1-Apr-03 11
2-Apr-03 11
3-Apr-03 11
4-Apr-03 11
5-Apr-03 11
6-Apr-03 11
7-Apr-03 11
8-Apr-03 11
9-Apr-03 11
10-Apr-03 11
11-Apr-03 11
12-Apr-03 11
13-Apr-03 11
14-Apr-03 11
15-Apr-03 11
16-Apr-03 11
17-Apr-03 11
18-Apr-03 11
19-Apr-03 11
20-Apr-03 11
21-Apr-03 11
22-Apr-03 11
23-Apr-03 11
24-Apr-03 11
25-Apr-03 11
26-Apr-03 11
27-Apr-03 11
28-Apr-03 11
29-Apr-03 11
30-Apr-03 11
1-May-03 11
2-May-03 11
3-May-03 11
4-May-03 11
5-May-03 11
6-May-03 11
7-May-03 11
8-May-03 11