Site ID: 45 Lat. 29.3326 China Jiangxi
River: Poyang Long. 116.0829
Site name: Nankang Contributing area: 158961 km2 Ratio to Comparison Station: 0.30
Latest measurement: 24-Jul-10 Mean annual runoff: 685 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 353.0 mm
Latest M/C ratio: 2.31 Seven day total: 24.0 mm
Estimated current discharge: 6389 m3/sec Percent of mean 7-day total: 98.2 % (today's value compared to mean for same period, 2003-2009)
Ice-cover determination: 5 yr recurrence flood: 9327 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 9119 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
255 2002 no data no data no data no data no data no data no data 54.9 61.0 58.2 42.8 37.7
602 2003 37.9 39.7 40.0 48.0 50.5 51.1 79.0 73.6 68.2 53.8 29.3 30.3
484 2004 25.7 26.4 31.2 38.8 51.8 48.0 65.8 49.5 39.4 45.9 34.9 26.1
716 2005 21.4 27.1 40.6 69.8 66.7 62.9 79.2 98.4 88.5 63.6 44.8 52.6
652 2006 42.8 40.9 44.2 68.6 67.8 76.2 111.0 98.6 57.7 44.2 0.0 0.0
810 2007 42.8 43.0 54.3 65.8 69.7 75.6 110.1 112.5 81.9 66.4 50.6 37.7
766 2008 27.3 28.0 45.0 53.9 83.0 65.3 94.7 107.1 110.6 72.3 34.4 44.6
763 2009 36.6 33.0 49.2 53.1 60.2 69.5 105.6 115.3 99.9 61.0 40.1 39.4
353 2010 36.0 46.4 32.6 36.5 51.7 62.6 87.3 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 685 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 4600
23-Jul-02 4600
24-Jul-02 4966
25-Jul-02 4041
26-Jul-02 3599
27-Jul-02 2925
28-Jul-02 2412
29-Jul-02 2234
30-Jul-02 3518
31-Jul-02 4814
1-Aug-02 6506
2-Aug-02 6506
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 2088
10-Aug-02 3132
11-Aug-02 2867
12-Aug-02 2847
13-Aug-02 4030
14-Aug-02 3955
15-Aug-02 4116
16-Aug-02 4681
17-Aug-02 2389
18-Aug-02 2442
19-Aug-02 2754
20-Aug-02 3501
21-Aug-02 3875
22-Aug-02 4370
23-Aug-02 4993
24-Aug-02 4650
25-Aug-02 4747
26-Aug-02 4643
27-Aug-02 4841
28-Aug-02 4018
29-Aug-02 4136
30-Aug-02 4174
31-Aug-02 4791
1-Sep-02 6590
2-Sep-02 5175
3-Sep-02 5727
4-Sep-02 5123
5-Sep-02 6085
6-Sep-02 7444
7-Sep-02 5660
8-Sep-02 5757
9-Sep-02 3926
10-Sep-02 3917
11-Sep-02 3868
12-Sep-02 4876
13-Sep-02 4964
14-Sep-02 5587
15-Sep-02 8553
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 5383
22-Sep-02 5383
23-Sep-02 4071
24-Sep-02 4071
25-Sep-02 1720
26-Sep-02 1639
27-Sep-02 455
28-Sep-02 1553
29-Sep-02 2345
30-Sep-02 2359
1-Oct-02 3413
2-Oct-02 3201
3-Oct-02 3493
4-Oct-02 4082
5-Oct-02 4230
6-Oct-02 4327
7-Oct-02 4075
8-Oct-02 4011
9-Oct-02 3974
10-Oct-02 3877
11-Oct-02 4542
12-Oct-02 4735
13-Oct-02 4219
14-Oct-02 4361
15-Oct-02 3923
16-Oct-02 3575
17-Oct-02 3518
18-Oct-02 2848
19-Oct-02 2877
20-Oct-02 3299
21-Oct-02 3352
22-Oct-02 2544
23-Oct-02 2258
24-Oct-02 1737
25-Oct-02 1884
26-Oct-02 2604
27-Oct-02 3615
28-Oct-02 3949
29-Oct-02 3445
30-Oct-02 2703
31-Oct-02 2405
1-Nov-02 2088
2-Nov-02 2053
3-Nov-02 2299
4-Nov-02 2727
5-Nov-02 2718
6-Nov-02 2724
7-Nov-02 3090
8-Nov-02 3191
9-Nov-02 3648
10-Nov-02 3433
11-Nov-02 3099
12-Nov-02 2975
13-Nov-02 2970
14-Nov-02 1743
15-Nov-02 1818
16-Nov-02 1897
17-Nov-02 1287
18-Nov-02 1964
19-Nov-02 2581
20-Nov-02 3338
21-Nov-02 2139
22-Nov-02 2230
23-Nov-02 1739
24-Nov-02 2288
25-Nov-02 2987
26-Nov-02 3038
27-Nov-02 3265
28-Nov-02 3020
29-Nov-02 3088
30-Nov-02 3360
1-Dec-02 3088
2-Dec-02 2346
3-Dec-02 3051
4-Dec-02 2766
5-Dec-02 3088
6-Dec-02 3976
7-Dec-02 2127
8-Dec-02 2292
9-Dec-02 2102
10-Dec-02 1952
11-Dec-02 2277
12-Dec-02 2210
13-Dec-02
14-Dec-02 2246
15-Dec-02 2672
16-Dec-02 2892
17-Dec-02 2996
18-Dec-02 2347
19-Dec-02 2146
20-Dec-02 1846
21-Dec-02 1456
22-Dec-02 2421
23-Dec-02 2051
24-Dec-02 1946
25-Dec-02 1458
26-Dec-02 1816
27-Dec-02 1807
28-Dec-02 1836
29-Dec-02 2277
30-Dec-02 1972
31-Dec-02 1923
1-Jan-03 1568
2-Jan-03 1574
3-Jan-03 2355
4-Jan-03 2324
5-Jan-03 2324
6-Jan-03 2058
7-Jan-03 1809
8-Jan-03 1850
9-Jan-03 2228
10-Jan-03 2118
11-Jan-03 2162
12-Jan-03 2293
13-Jan-03 2099
14-Jan-03 2361
15-Jan-03 2590
16-Jan-03 2826
17-Jan-03 3116
18-Jan-03 3190
19-Jan-03 2826
20-Jan-03 2828
21-Jan-03 2714
22-Jan-03 2325
23-Jan-03 2591
24-Jan-03 2245
25-Jan-03 1998
26-Jan-03 2041
27-Jan-03 2109
28-Jan-03 1966
29-Jan-03 2098
30-Jan-03 2318
31-Jan-03 770
1-Feb-03 793
2-Feb-03 1808
3-Feb-03 1832
4-Feb-03 2613
5-Feb-03 2571
6-Feb-03 2312
7-Feb-03 2218
8-Feb-03
9-Feb-03 5198
10-Feb-03 5517
11-Feb-03 3199
12-Feb-03 3139
13-Feb-03 2369
14-Feb-03 2240
15-Feb-03 2782
16-Feb-03 1681
17-Feb-03 1745
18-Feb-03 1890
19-Feb-03 2552
20-Feb-03 3581
21-Feb-03 3855
22-Feb-03 4045
23-Feb-03 3529
24-Feb-03 3193
25-Feb-03 2763
26-Feb-03 2361
27-Feb-03 1497
28-Feb-03 1826
1-Mar-03 1555
2-Mar-03 2450