Site ID: 2278 Lat. 35.9347 Japan 0
River: Tone Delta Long. 140.5100
Site name: 0 Contributing area: 1329 km2 Ratio to Comparison Station: 0.05
Latest measurement: 13-Jul-10 Mean annual runoff: 24245 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 14526.1 mm
Latest M/C ratio: 1.27 Seven day total: 411.9 mm
Estimated current discharge: 657 m3/sec Percent of mean 7-day total: 154.9 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 3166 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 3129 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Boluo (2186950)           Contributing Area:   sq mi 28239 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Final calibration to discharge 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
8842 2002 no data no data no data no data no data no data no data 1924.3 2005.9 2103.8 1437.9 1370.4
20434 2003 951.9 1510.8 1569.1 2664.7 2127.9 1281.0 1234.3 2045.6 1755.9 2127.8 1501.0 1664.5
24217 2004 1257.5 1011.2 1088.6 3525.2 1765.2 1645.6 2569.7 2718.1 3286.9 1833.8 1819.7 1695.5
24109 2005 1109.7 903.0 1098.1 3581.7 3658.2 1915.9 1578.2 1653.6 1891.1 2150.9 2079.7 2489.3
22712 2006 1910.5 1858.0 2569.9 3711.1 3773.2 1737.7 1188.2 2011.9 1623.7 2327.8 0.0 0.0
24161 2007 2264.0 1672.3 1695.7 3540.4 3492.6 1475.0 1304.7 1928.5 1939.5 1680.6 1669.4 1497.9
26733 2008 1726.7 1526.7 1837.9 3693.1 3564.9 1670.2 1521.5 1608.6 2499.7 2523.4 1802.2 2758.3
27349 2009 1396.7 1943.5 2822.4 3949.2 3369.8 1910.5 1533.4 1934.0 1922.7 1864.4 2356.4 2346.6
14526 2010 1258.0 1541.3 2840.1 3539.7 3191.7 1319.8 835.5 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 24245 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  -73
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Green line records upwelling microwave emission from within 5 km radius of a calbration land target. 
Explanation:   Blue line is emission from within 5 km radius of the measurement target centered over the river.
Brown line is their ratio (M/C; "HR" in Brakenridge et al 2007; 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 using available ground-based discharge information.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 1091
23-Jul-02 1091
24-Jul-02 1045
25-Jul-02 1417
26-Jul-02 1230
27-Jul-02 1294
28-Jul-02 1093
29-Jul-02 606
30-Jul-02 638
31-Jul-02 638
1-Aug-02 856
2-Aug-02 856
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 1025
10-Aug-02 1574
11-Aug-02 1495
12-Aug-02 1495
13-Aug-02 1552
14-Aug-02 1255
15-Aug-02 1221
16-Aug-02 902
17-Aug-02 1113
18-Aug-02 1026
19-Aug-02 893
20-Aug-02 1243
21-Aug-02 1074
22-Aug-02 830
23-Aug-02 1460
24-Aug-02 1133
25-Aug-02 1050
26-Aug-02 1233
27-Aug-02 996
28-Aug-02 1146
29-Aug-02 1333
30-Aug-02 1327
31-Aug-02 1512
1-Sep-02 1571
2-Sep-02 1422
3-Sep-02 1373
4-Sep-02 1219
5-Sep-02 1098
6-Sep-02 1222
7-Sep-02 1313
8-Sep-02 1230
9-Sep-02 2243
10-Sep-02 1526
11-Sep-02 1020
12-Sep-02 1085
13-Sep-02 575
14-Sep-02 740
15-Sep-02 1377
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 1160
22-Sep-02 1160
23-Sep-02 1183
24-Sep-02 928
25-Sep-02 1582
26-Sep-02 1557
27-Sep-02 1421
28-Sep-02 1270
29-Sep-02 910
30-Sep-02 672
1-Oct-02 742
2-Oct-02 1054
3-Oct-02 1190
4-Oct-02 1528
5-Oct-02 1542
6-Oct-02 1435
7-Oct-02 1093
8-Oct-02 860
9-Oct-02 669
10-Oct-02 300
11-Oct-02 1362
12-Oct-02 1249
13-Oct-02 1705
14-Oct-02 1624
15-Oct-02 1616
16-Oct-02 1263
17-Oct-02 827
18-Oct-02 398
19-Oct-02 437
20-Oct-02 670
21-Oct-02 477
22-Oct-02 386
23-Oct-02 584
24-Oct-02 604
25-Oct-02 887
26-Oct-02 995
27-Oct-02 1601
28-Oct-02 1383
29-Oct-02 1777
30-Oct-02 1203
31-Oct-02 902
1-Nov-02 953
2-Nov-02 549
3-Nov-02 1006
4-Nov-02 1006
5-Nov-02 981
6-Nov-02 951
7-Nov-02 416
8-Nov-02 455
9-Nov-02 307
10-Nov-02 289
11-Nov-02 912
12-Nov-02 698
13-Nov-02 551
14-Nov-02 755
15-Nov-02 761
16-Nov-02 758
17-Nov-02 1047
18-Nov-02 888
19-Nov-02 1707
20-Nov-02 1198
21-Nov-02 1137
22-Nov-02 1067
23-Nov-02 586
24-Nov-02 623
25-Nov-02 537
26-Nov-02 432
27-Nov-02 218
28-Nov-02 102
29-Nov-02 461
30-Nov-02 765
1-Dec-02 705
2-Dec-02 703
3-Dec-02 676
4-Dec-02 690
5-Dec-02 908
6-Dec-02 601
7-Dec-02 656
8-Dec-02 488
9-Dec-02 178
10-Dec-02 409
11-Dec-02 315
12-Dec-02 722
13-Dec-02 1147
14-Dec-02 1236
15-Dec-02 1176
16-Dec-02 1045
17-Dec-02 588
18-Dec-02 293
19-Dec-02 261
20-Dec-02 466
21-Dec-02 884
22-Dec-02 811
23-Dec-02 694
24-Dec-02 547
25-Dec-02 614
26-Dec-02 699
27-Dec-02 656
28-Dec-02 896
29-Dec-02 848
30-Dec-02 649
31-Dec-02 515
1-Jan-03 376
2-Jan-03 494
3-Jan-03 450
4-Jan-03 195
5-Jan-03 195
6-Jan-03 175
7-Jan-03 222
8-Jan-03 622
9-Jan-03 712
10-Jan-03 375
11-Jan-03 473
12-Jan-03 315
13-Jan-03 251
14-Jan-03 732
15-Jan-03 401
16-Jan-03 425
17-Jan-03 449
18-Jan-03 283
19-Jan-03 385
20-Jan-03 211
21-Jan-03 3
22-Jan-03 514
23-Jan-03 388
24-Jan-03 1070
25-Jan-03 793
26-Jan-03 521
27-Jan-03 652
28-Jan-03 294
29-Jan-03 702
30-Jan-03 998
31-Jan-03 965
1-Feb-03 1018
2-Feb-03 787
3-Feb-03 797
4-Feb-03 870
5-Feb-03 822
6-Feb-03 938
7-Feb-03 1059
8-Feb-03 972
9-Feb-03 662
10-Feb-03 685
11-Feb-03 648
12-Feb-03 476
13-Feb-03 493
14-Feb-03 471
15-Feb-03 534
16-Feb-03 919
17-Feb-03 904
18-Feb-03 1151
19-Feb-03 992
20-Feb-03 902
21-Feb-03 974
22-Feb-03 804
23-Feb-03 701
24-Feb-03 755
25-Feb-03 901
26-Feb-03 977
27-Feb-03 1111
28-Feb-03 913
1-Mar-03 714
2-Mar-03 576
3-Mar-03 345
4-Mar-03 721
5-Mar-03 792
6-Mar-03 1039
7-Mar-03 951
8-Mar-03 1014
9-Mar-03 989
10-Mar-03 760