Site ID: 123 Lat. 29.6037 China Jiangxi
River: Poyang Long. 116.1555
Site name: Shuangzhong Contributing area: 160180 km2 Ratio to Comparison Station: 0.30
Latest measurement: 30-Jul-10 Mean annual runoff: 512 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 321.1 mm
Latest M/C ratio: 2.14 Seven day total: 18.0 mm
Estimated current discharge: 5225 m3/sec Percent of mean 7-day total: 105.9 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 6523 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 6401 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
188 2002 no data no data no data no data no data no data no data 40.8 50.5 44.5 31.8 20.7
403 2003 21.5 18.5 21.4 29.4 35.0 41.6 65.0 52.0 47.7 38.1 16.7 16.2
295 2004 11.4 8.7 13.3 15.5 35.1 41.1 38.7 36.6 31.6 32.1 18.3 12.4
552 2005 5.0 15.6 30.6 48.1 45.1 54.8 69.1 70.1 71.5 62.8 36.8 42.2
524 2006 33.5 35.9 43.2 56.3 55.2 62.6 73.0 75.0 50.8 38.4 0.0 0.0
599 2007 34.9 31.6 34.2 34.2 50.6 54.8 75.9 76.3 69.3 69.3 41.2 26.5
594 2008 19.9 20.6 34.0 44.1 62.6 53.2 67.2 71.6 70.0 63.6 41.8 45.4
620 2009 24.6 22.2 49.9 48.4 62.4 65.1 79.8 77.6 70.5 55.5 31.8 31.9
321 2010 25.9 32.4 38.1 39.1 55.8 58.2 66.0 5.6 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 512 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 2603
23-Jul-02 2603
24-Jul-02 3016
25-Jul-02 2079
26-Jul-02 1993
27-Jul-02 2058
28-Jul-02 2025
29-Jul-02 1847
30-Jul-02 3199
31-Jul-02 4881
1-Aug-02 6219
2-Aug-02 6219
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 1681
11-Aug-02 1489
12-Aug-02 1371
13-Aug-02 2443
14-Aug-02 2340
15-Aug-02 1779
16-Aug-02 2274
17-Aug-02 858
18-Aug-02 1291
19-Aug-02 2893
20-Aug-02 3045
21-Aug-02 3405
22-Aug-02 4179
23-Aug-02 3979
24-Aug-02 5893
25-Aug-02 5639
26-Aug-02 4673
27-Aug-02 4267
28-Aug-02 2695
29-Aug-02 2295
30-Aug-02 2542
31-Aug-02 2129
1-Sep-02 3048
2-Sep-02 4242
3-Sep-02 4841
4-Sep-02 3911
5-Sep-02 4405
6-Sep-02 4466
7-Sep-02 3679
8-Sep-02 4445
9-Sep-02 3674
10-Sep-02 3390
11-Sep-02 3587
12-Sep-02 3896
13-Sep-02 3828
14-Sep-02 3763
15-Sep-02 4801
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 6022
22-Sep-02 6022
23-Sep-02 4959
24-Sep-02 4959
25-Sep-02 2134
26-Sep-02 3014
27-Sep-02 1425
28-Sep-02 1628
29-Sep-02 1646
30-Sep-02 1787
1-Oct-02 2536
2-Oct-02 2506
3-Oct-02 3547
4-Oct-02 3532
5-Oct-02 3439
6-Oct-02 2787
7-Oct-02 3043
8-Oct-02 2442
9-Oct-02 2711
10-Oct-02 3900
11-Oct-02 4726
12-Oct-02 4730
13-Oct-02 5052
14-Oct-02 4550
15-Oct-02 3177
16-Oct-02 2670
17-Oct-02 2178
18-Oct-02 1965
19-Oct-02 2883
20-Oct-02 1488
21-Oct-02 1800
22-Oct-02 1340
23-Oct-02 1252
24-Oct-02 1400
25-Oct-02 1245
26-Oct-02 1415
27-Oct-02 1834
28-Oct-02 2406
29-Oct-02 2368
30-Oct-02 1802
31-Oct-02 1868
1-Nov-02 1664
2-Nov-02 1669
3-Nov-02 1794
4-Nov-02 2799
5-Nov-02 1587
6-Nov-02 2313
7-Nov-02 2521
8-Nov-02 2307
9-Nov-02 2576
10-Nov-02 1983
11-Nov-02 1509
12-Nov-02 1374
13-Nov-02 1589
14-Nov-02 1238
15-Nov-02 1261
16-Nov-02 1280
17-Nov-02 903
18-Nov-02 1313
19-Nov-02 1857
20-Nov-02 2146
21-Nov-02 1553
22-Nov-02 2068
23-Nov-02 1881
24-Nov-02 2405
25-Nov-02 2948
26-Nov-02 2258
27-Nov-02 2546
28-Nov-02 1976
29-Nov-02 2301
30-Nov-02 3289
1-Dec-02 2831
2-Dec-02 2378
3-Dec-02 1769
4-Dec-02 1178
5-Dec-02 932
6-Dec-02 1124
7-Dec-02 1287
8-Dec-02 1230
9-Dec-02 1374
10-Dec-02 1177
11-Dec-02 1117
12-Dec-02 1350
13-Dec-02
14-Dec-02 1254
15-Dec-02 1347
16-Dec-02 1702
17-Dec-02 1587
18-Dec-02 1000
19-Dec-02 1014
20-Dec-02 818
21-Dec-02 825
22-Dec-02 1585
23-Dec-02 1214
24-Dec-02 1514
25-Dec-02 1091
26-Dec-02 999
27-Dec-02 939
28-Dec-02 523
29-Dec-02 738
30-Dec-02 1066
31-Dec-02 1399
1-Jan-03 1926
2-Jan-03 1895
3-Jan-03 1297
4-Jan-03 1008
5-Jan-03 1008
6-Jan-03 560
7-Jan-03 880
8-Jan-03 588
9-Jan-03 754
10-Jan-03 785
11-Jan-03 722
12-Jan-03 885
13-Jan-03 815
14-Jan-03 711
15-Jan-03 1639
16-Jan-03 1804
17-Jan-03 2124
18-Jan-03 2022
19-Jan-03 1600
20-Jan-03 1617
21-Jan-03 1583
22-Jan-03 1204
23-Jan-03 1445
24-Jan-03 665
25-Jan-03 814
26-Jan-03 1009
27-Jan-03 1325
28-Jan-03 1492
29-Jan-03 1971
30-Jan-03 2442
31-Jan-03 1226
1-Feb-03 1517
2-Feb-03 913
3-Feb-03 1369
4-Feb-03 1569
5-Feb-03 1812
6-Feb-03 2162
7-Feb-03 1823
8-Feb-03 2785
9-Feb-03 424
10-Feb-03 730
11-Feb-03 652
12-Feb-03 709
13-Feb-03 803
14-Feb-03 999
15-Feb-03 1246
16-Feb-03 775
17-Feb-03 1483
18-Feb-03 1528
19-Feb-03 1448
20-Feb-03 1569
21-Feb-03 1337
22-Feb-03 1082
23-Feb-03 892
24-Feb-03 1188
25-Feb-03 867