2135 Lat. 32.7056 China Shaanxi
River: Han Long. 109.0562
Site name: Ankang Contributing area: 39301 km2 Ratio to Comparison Station: 0.34
Latest measurement: 9-Jan-10 Mean annual runoff: 969 mm (2003-2007)
Hydrologic status: 3 Flood Total runoff this year: 1812 mm
Latest M/C ratio: 1.11 Seven day total: 1 mm
Estimated current discharge: 3590 m3/sec Percent of mean 7-day total: 141.7 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 6592 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 6151 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Bengbu (2181950)           Contributing Area:   sq mi 116778 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Rating equation is based on comparison of monthly means from a station in the region
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
163 2002 no data no data no data no data no data no data no data 18.1 40.7 31.2 20.4 52.6
436 2003 50.9 53.8 26.9 41.8 8.9 20.0 34.7 39.8 36.7 41.9 29.7 51.0
345 2004 32.7 52.0 44.6 30.9 20.4 36.5 34.2 14.1 22.1 13.6 13.0 31.4
1202 2005 20.6 15.2 79.3 69.4 53.9 62.8 92.4 94.9 115.5 220.9 156.3 220.8
1193 2006 155.4 133.3 172.1 104.1 80.1 93.0 87.6 78.8 136.1 152.1 0.0 0.0
1668 2007 201.7 161.9 175.0 142.5 54.3 86.8 126.4 148.7 133.8 112.0 142.5 182.6
1812 2008 150.3 167.6 231.3 127.9 79.8 117.3 105.5 137.6 141.7 179.4 162.7 210.7
1795 2009 235.0 185.0 207.0 130.7 102.4 76.1 94.8 140.8 107.8 110.3 191.4 213.6
Mean Annual Runoff: 1109 Standard Deviation: 610
Trend in Annual Runoff (slope):  309.65
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from a land parcel (ca 10 km x 10 km) near the river; blue line from a parcel 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.
When data above show calibration site values lower than for the measurement site, discharge estimation may not be possible.
GoogleEarth View of Measurement Site
2135.jpg
Return
Date m3/sec
22-Jul-02 247
23-Jul-02 247
24-Jul-02 476
25-Jul-02 640
26-Jul-02 543
27-Jul-02 378
28-Jul-02 288
29-Jul-02 474
30-Jul-02 375
31-Jul-02 493
1-Aug-02 531
2-Aug-02 38
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 887
10-Aug-02 887
11-Aug-02 614
12-Aug-02 839
13-Aug-02 244
14-Aug-02 189
15-Aug-02 -4
16-Aug-02 -4
17-Aug-02 -4
18-Aug-02 -4
19-Aug-02 595
20-Aug-02 -4
21-Aug-02 108
22-Aug-02 318
23-Aug-02 333
24-Aug-02 778
25-Aug-02 463
26-Aug-02 319
27-Aug-02 98
28-Aug-02 293
29-Aug-02 266
30-Aug-02 262
31-Aug-02 175
1-Sep-02 259
2-Sep-02 286
3-Sep-02 405
4-Sep-02 1029
5-Sep-02 330
6-Sep-02 600
7-Sep-02 438
8-Sep-02 470
9-Sep-02 623
10-Sep-02 279
11-Sep-02 315
12-Sep-02 262
13-Sep-02 262
14-Sep-02 447
15-Sep-02 447
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1547
22-Sep-02 2194
23-Sep-02 1624
24-Sep-02 1759
25-Sep-02 1828
26-Sep-02 954
27-Sep-02 1061
28-Sep-02 436
29-Sep-02 279
30-Sep-02 382
1-Oct-02 314
2-Oct-02 249
3-Oct-02 295
4-Oct-02 205
5-Oct-02 492
6-Oct-02 591
7-Oct-02 426
8-Oct-02 729
9-Oct-02 519
10-Oct-02 562
11-Oct-02 844
12-Oct-02 480
13-Oct-02 499
14-Oct-02 482
15-Oct-02 434
16-Oct-02 414
17-Oct-02 522
18-Oct-02 620
19-Oct-02 425
20-Oct-02 484
21-Oct-02 329
22-Oct-02 87
23-Oct-02 897
24-Oct-02 777
25-Oct-02 869
26-Oct-02 710
27-Oct-02 483
28-Oct-02 279
29-Oct-02 152
30-Oct-02 -4
31-Oct-02 48
1-Nov-02 162
2-Nov-02 170
3-Nov-02 349
4-Nov-02 427
5-Nov-02 434
6-Nov-02 295
7-Nov-02 163
8-Nov-02 -4
9-Nov-02 -4
10-Nov-02 110
11-Nov-02 -3
12-Nov-02 21
13-Nov-02 114
14-Nov-02 -4
15-Nov-02 59
16-Nov-02 196
17-Nov-02 517
18-Nov-02 389
19-Nov-02 396
20-Nov-02 453
21-Nov-02 239
22-Nov-02 137
23-Nov-02 215
24-Nov-02 370
25-Nov-02 762
26-Nov-02 1077
27-Nov-02 944
28-Nov-02 827
29-Nov-02 248
30-Nov-02 206
1-Dec-02 389
2-Dec-02 594
3-Dec-02 702
4-Dec-02 673
5-Dec-02 643
6-Dec-02 549
7-Dec-02 747
8-Dec-02 598
9-Dec-02 438
10-Dec-02 828
11-Dec-02 820
12-Dec-02 1378
13-Dec-02 1186
14-Dec-02 1046
15-Dec-02 1426
16-Dec-02 1244
17-Dec-02 1444
18-Dec-02 1472
19-Dec-02 1192
20-Dec-02 978
21-Dec-02 790
22-Dec-02 752
23-Dec-02 651
24-Dec-02 537
25-Dec-02 652
26-Dec-02 439
27-Dec-02 395
28-Dec-02 397
29-Dec-02 306
30-Dec-02 189
31-Dec-02 465
1-Jan-03 625
2-Jan-03 752
3-Jan-03 727
4-Jan-03 443
5-Jan-03 692
6-Jan-03 1064
7-Jan-03 1160
8-Jan-03 1440
9-Jan-03 936
10-Jan-03 634
11-Jan-03 1124
12-Jan-03 1003
13-Jan-03 1307
14-Jan-03 999
15-Jan-03 671
16-Jan-03 483
17-Jan-03 270
18-Jan-03 390
19-Jan-03 419
20-Jan-03 979
21-Jan-03 976
22-Jan-03 772
23-Jan-03 1038
24-Jan-03 733
25-Jan-03 478
26-Jan-03 772
27-Jan-03 261
28-Jan-03 263
29-Jan-03 440
30-Jan-03 594
31-Jan-03 710
1-Feb-03 835
2-Feb-03 838
3-Feb-03 542
4-Feb-03 597
5-Feb-03 687
6-Feb-03 636
7-Feb-03 664
8-Feb-03 393
9-Feb-03 225
10-Feb-03 649
11-Feb-03 649
12-Feb-03 1502
13-Feb-03 966
14-Feb-03 507
15-Feb-03 880
16-Feb-03 756
17-Feb-03 1254
18-Feb-03 1988
19-Feb-03 1049
20-Feb-03 947
21-Feb-03 739
22-Feb-03 795
23-Feb-03 708
24-Feb-03 713
25-Feb-03 669
26-Feb-03 1090
27-Feb-03 1580
28-Feb-03 1631
1-Mar-03 1137
2-Mar-03 374
3-Mar-03 468
4-Mar-03 355
5-Mar-03 151
6-Mar-03 226
7-Mar-03 -4
8-Mar-03 115
9-Mar-03 617
10-Mar-03 438
11-Mar-03 311
12-Mar-03 184
13-Mar-03 32
14-Mar-03 27
15-Mar-03 39
16-Mar-03 151
17-Mar-03 16
18-Mar-03 106
19-Mar-03 281
20-Mar-03 316
21-Mar-03 1372
22-Mar-03 2333
23-Mar-03 239
24-Mar-03 620
25-Mar-03 983
26-Mar-03 440
27-Mar-03 86
28-Mar-03 -4
29-Mar-03 -4
30-Mar-03 128
31-Mar-03 716
1-Apr-03 -4
2-Apr-03 168
3-Apr-03 -4
4-Apr-03 -4
5-Apr-03 119
6-Apr-03 502
7-Apr-03 1991
8-Apr-03 1282
9-Apr-03 1173
10-Apr-03 429
11-Apr-03 437
12-Apr-03 608
13-Apr-03 557
14-Apr-03 843
15-Apr-03 730
16-Apr-03 450
17-Apr-03 135
18-Apr-03 492
19-Apr-03 1032
20-Apr-03 1033
21-Apr-03 1505
22-Apr-03 713
23-Apr-03 330
24-Apr-03 566
25-Apr-03 723
26-Apr-03 615
27-Apr-03 785
28-Apr-03 501
29-Apr-03 452
30-Apr-03 847
1-May-03 549
2-May-03 616
3-May-03 85
4-May-03 48
5-May-03 -4
6-May-03 -4
7-May-03 4
8-May-03 -4
9-May-03 9
10-May-03 -4
11-May-03 -4
12-May-03 -4
13-May-03 66
14-May-03 95
15-May-03 1
16-May-03 140
17-May-03 -4
18-May-03 -4
19-May-03 -4
20-May-03 -4
21-May-03 177
22-May-03 148
23-May-03 269
24-May-03 161
25-May-03 -4
26-May-03 -4
27-May-03 204
28-May-03 753
29-May-03 337
30-May-03 315
31-May-03 146
1-Jun-03 -4
2-Jun-03 -4
3-Jun-03 -4
4-Jun-03 -4
5-Jun-03 -4
6-Jun-03 22
7-Jun-03 99
8-Jun-03 64
9-Jun-03 195
10-Jun-03 468
11-Jun-03 772
12-Jun-03 914
13-Jun-03 807
14-Jun-03 413
15-Jun-03 219
16-Jun-03 -4
17-Jun-03 -4
18-Jun-03 107
19-Jun-03 98
20-Jun-03 306
21-Jun-03 544
22-Jun-03 1332
23-Jun-03 829
24-Jun-03 829
25-Jun-03 634
26-Jun-03 140
27-Jun-03 115
28-Jun-03 128
29-Jun-03 112
30-Jun-03 -4
1-Jul-03 -4
2-Jul-03 -4
3-Jul-03 -4
4-Jul-03 -4
5-Jul-03 -4
6-Jul-03 336
7-Jul-03 592
8-Jul-03 -4
9-Jul-03 -4
10-Jul-03 -4
11-Jul-03 -4
12-Jul-03 1045
13-Jul-03 1106
14-Jul-03 1490
15-Jul-03 1578
16-Jul-03 1038
17-Jul-03 952
18-Jul-03 495
19-Jul-03 228
20-Jul-03 399
21-Jul-03 365
22-Jul-03 435
23-Jul-03 601