Site ID: 228 Lat. 12.2667 Cambodia Kampong Cham
River: Mekong Long. 105.6646
Site name: Kampong Cham Contributing area: 660785 km2 Ratio to Comparison Station: 1.23
Latest measurement: 29-Jul-10 Mean annual runoff: 546 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 190.9 mm
Latest M/C ratio: 1.25 Seven day total: 6.0 mm
Estimated current discharge: 6856 m3/sec Percent of mean 7-day total: 68.7 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 40217 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 39880 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 been accomplished.  Accuracy  Estimate:  Good
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
336 2002 no data no data no data no data no data no data no data 73.4 94.2 88.4 46.4 33.8
466 2003 35.0 30.0 32.7 25.1 28.1 26.5 32.6 42.4 85.3 65.2 30.7 32.8
528 2004 32.9 30.1 29.0 24.7 31.6 28.6 33.3 76.7 89.4 74.1 40.5 36.9
634 2005 34.2 28.9 27.1 25.8 24.9 23.7 30.0 124.0 122.5 99.8 58.6 34.4
508 2006 31.9 26.5 26.8 19.5 25.6 23.5 34.0 109.6 103.8 107.3 0.0 0.0
546 2007 32.4 29.1 23.8 21.8 26.7 23.0 31.7 81.6 89.8 94.6 58.7 32.4
559 2008 32.5 27.1 26.9 25.9 25.9 24.1 34.3 102.4 95.8 79.1 49.0 36.3
582 2009 33.2 28.9 30.4 22.9 30.7 27.7 43.0 105.6 80.6 98.2 48.7 32.3
191 2010 32.4 27.8 27.0 27.8 24.2 25.5 25.2 0.9 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 546 Standard Deviation: 53.7
Trend in Annual Runoff (slope):  11.5
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.
GoogleEarth View of Measurement Site
Return
228.jpg
Estimated
Discharge
Date m3/sec
22-Jul-02 24405
23-Jul-02 24405
24-Jul-02 22901
25-Jul-02 23174
26-Jul-02 22278
27-Jul-02 22278
28-Jul-02 21024
29-Jul-02 18939
30-Jul-02 18404
31-Jul-02 18404
1-Aug-02 18738
2-Aug-02 22630
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 8854
10-Aug-02 8854
11-Aug-02 16186
12-Aug-02 16186
13-Aug-02 10987
14-Aug-02 14039
15-Aug-02 11124
16-Aug-02 12336
17-Aug-02 17015
18-Aug-02 13646
19-Aug-02 13642
20-Aug-02 16760
21-Aug-02 16760
22-Aug-02 26037
23-Aug-02 26688
24-Aug-02 29707
25-Aug-02 34053
26-Aug-02 39337
27-Aug-02 41610
28-Aug-02 41610
29-Aug-02 38952
30-Aug-02 37374
31-Aug-02 28573
1-Sep-02 29758
2-Sep-02 27967
3-Sep-02 27381
4-Sep-02 32995
5-Sep-02 34293
6-Sep-02 34293
7-Sep-02 28595
8-Sep-02 30564
9-Sep-02 27839
10-Sep-02 27611
11-Sep-02 30765
12-Sep-02 32368
13-Sep-02 32368
14-Sep-02 37893
15-Sep-02 37893
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 10709
22-Sep-02 10709
23-Sep-02 15603
24-Sep-02 22607
25-Sep-02 29692
26-Sep-02 31502
27-Sep-02 37539
28-Sep-02 33677
29-Sep-02 33677
30-Sep-02 22240
1-Oct-02 23159
2-Oct-02 24888
3-Oct-02 26488
4-Oct-02 33704
5-Oct-02 26965
6-Oct-02 22631
7-Oct-02 19032
8-Oct-02 19032
9-Oct-02 26111
10-Oct-02 27562
11-Oct-02 30156
12-Oct-02 30365
13-Oct-02 30632
14-Oct-02 29674
15-Oct-02 29674
16-Oct-02 20339
17-Oct-02 22149
18-Oct-02 20612
19-Oct-02 19709
20-Oct-02 22234
21-Oct-02 20128
22-Oct-02 18268
23-Oct-02 16634
24-Oct-02 16634
25-Oct-02 16784
26-Oct-02 17368
27-Oct-02 19056
28-Oct-02 15949
29-Oct-02 14323
30-Oct-02 7771
31-Oct-02 7771
1-Nov-02 9404
2-Nov-02 11638
3-Nov-02 16464
4-Nov-02 16207
5-Nov-02 16333
6-Nov-02 15643
7-Nov-02 15615
8-Nov-02 13160
9-Nov-02 13160
10-Nov-02 11153
11-Nov-02 11348
12-Nov-02 11680
13-Nov-02 12030
14-Nov-02 12242
15-Nov-02 12612
16-Nov-02 12612
17-Nov-02 10400
18-Nov-02 11246
19-Nov-02 11009
20-Nov-02 10777
21-Nov-02 11580
22-Nov-02 10552
23-Nov-02 9992
24-Nov-02 10132
25-Nov-02 10132
26-Nov-02 10230
27-Nov-02 10101
28-Nov-02 9964
29-Nov-02 9126
30-Nov-02 8642
1-Dec-02 8369
2-Dec-02 8369
3-Dec-02 9395
4-Dec-02 9773
5-Dec-02 9405
6-Dec-02 9004
7-Dec-02 8967
8-Dec-02 7288
9-Dec-02 6657
10-Dec-02 7212
11-Dec-02 7212
12-Dec-02 8586
13-Dec-02 8361
14-Dec-02 8144
15-Dec-02 8277
16-Dec-02 8228
17-Dec-02 8576
18-Dec-02 8576
19-Dec-02 8785
20-Dec-02 8615
21-Dec-02 8710
22-Dec-02 8858
23-Dec-02 8829
24-Dec-02 8008
25-Dec-02 7358
26-Dec-02 7347
27-Dec-02 7347
28-Dec-02 9091
29-Dec-02 8506
30-Dec-02 8315
31-Dec-02 7995
1-Jan-03 7403
2-Jan-03 7834
3-Jan-03 7834
4-Jan-03 8166
5-Jan-03 7915
6-Jan-03 8449
7-Jan-03 8444
8-Jan-03 8591
9-Jan-03 8398
10-Jan-03 7659
11-Jan-03 7821
12-Jan-03 7821
13-Jan-03 8813
14-Jan-03 7674
15-Jan-03 7179
16-Jan-03 7151
17-Jan-03 6297
18-Jan-03 8205
19-Jan-03 8205
20-Jan-03 9497
21-Jan-03 9374
22-Jan-03 9798
23-Jan-03 9183
24-Jan-03 9081
25-Jan-03 9600
26-Jan-03 8988
27-Jan-03 10615
28-Jan-03 10615
29-Jan-03 10727
30-Jan-03 10189
31-Jan-03 10062
1-Feb-03 9916
2-Feb-03 9371
3-Feb-03 7973
4-Feb-03 7973
5-Feb-03 7828
6-Feb-03 9062
7-Feb-03 10413
8-Feb-03 9738
9-Feb-03 10009