Site ID: 2276 Lat. 37.5922 Japan 0
River: Agano Long. 139.8617
Site name: 0 Contributing area: 431 km2 Ratio to Comparison Station: 0.02
Latest measurement: 13-Jul-10 Mean annual runoff: 37497 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 35601.6 mm
Latest M/C ratio: 1.10 Seven day total: 4.7 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 7.5 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 3882 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 3737 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
3496 2002 no data no data no data no data no data no data no data 26.4 16.7 730.6 1201.6 1521.1
19924 2003 1499.9 1736.5 954.7 1696.0 5775.0 5329.1 28.1 57.9 286.4 136.7 451.5 1971.9
18343 2004 1869.9 3515.4 2011.6 1734.3 5099.7 3316.5 20.7 20.7 20.0 44.2 133.6 556.3
43770 2005 982.2 2823.1 6725.6 3285.2 12021.1 7761.0 76.8 32.2 647.8 1445.5 3867.7 4102.2
41766 2006 5592.6 4199.9 2110.9 5177.1 11459.3 10778.4 222.4 21.0 242.1 1962.4 0.0 0.0
44144 2007 6414.2 2662.0 1729.1 2618.6 11987.1 10183.1 358.6 31.1 263.8 2001.5 2760.6 3134.7
53745 2008 6203.1 5182.2 6020.8 3716.5 11804.6 9820.9 342.9 20.7 650.0 2277.1 3604.1 4102.1
40786 2009 4074.3 3430.8 1651.6 2651.5 10428.4 10464.2 373.0 20.7 430.2 1451.2 2843.4 2966.4
35602 2010 4433.4 3679.2 4108.2 3453.6 11191.0 8543.6 192.5 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 37497 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 3
23-Jul-02 3
24-Jul-02 3
25-Jul-02 3
26-Jul-02 3
27-Jul-02 3
28-Jul-02 3
29-Jul-02 3
30-Jul-02 3
31-Jul-02 3
1-Aug-02 3
2-Aug-02 3
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 3
10-Aug-02 3
11-Aug-02 3
12-Aug-02 3
13-Aug-02 3
14-Aug-02 3
15-Aug-02 3
16-Aug-02 3
17-Aug-02 3
18-Aug-02 3
19-Aug-02 3
20-Aug-02 3
21-Aug-02 3
22-Aug-02 3
23-Aug-02 52
24-Aug-02 3
25-Aug-02 3
26-Aug-02 3
27-Aug-02 3
28-Aug-02 3
29-Aug-02 3
30-Aug-02 3
31-Aug-02 3
1-Sep-02 3
2-Sep-02 3
3-Sep-02 3
4-Sep-02 3
5-Sep-02 3
6-Sep-02 3
7-Sep-02 3
8-Sep-02 3
9-Sep-02 3
10-Sep-02 3
11-Sep-02 3
12-Sep-02 3
13-Sep-02 3
14-Sep-02 3
15-Sep-02 3
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3
22-Sep-02 3
23-Sep-02 3
24-Sep-02 3
25-Sep-02 3
26-Sep-02 3
27-Sep-02 3
28-Sep-02 3
29-Sep-02 3
30-Sep-02 3
1-Oct-02 3
2-Oct-02 3
3-Oct-02 62
4-Oct-02 240
5-Oct-02 190
6-Oct-02 208
7-Oct-02 16
8-Oct-02 3
9-Oct-02 3
10-Oct-02 33
11-Oct-02 89
12-Oct-02 97
13-Oct-02 153
14-Oct-02 17
15-Oct-02 54
16-Oct-02 153
17-Oct-02 192
18-Oct-02 358
19-Oct-02 360
20-Oct-02 80
21-Oct-02 6
22-Oct-02 3
23-Oct-02 3
24-Oct-02 3
25-Oct-02 3
26-Oct-02 190
27-Oct-02 207
28-Oct-02 260
29-Oct-02 304
30-Oct-02 149
31-Oct-02 195
1-Nov-02 196
2-Nov-02 220
3-Nov-02 167
4-Nov-02 388
5-Nov-02 321
6-Nov-02 433
7-Nov-02 609
8-Nov-02 473
9-Nov-02 599
10-Nov-02 203
11-Nov-02 245
12-Nov-02 134
13-Nov-02 146
14-Nov-02 205
15-Nov-02 3
16-Nov-02 3
17-Nov-02 3
18-Nov-02 3
19-Nov-02 3
20-Nov-02 84
21-Nov-02 25
22-Nov-02 118
23-Nov-02 339
24-Nov-02 115
25-Nov-02 53
26-Nov-02 3
27-Nov-02 3
28-Nov-02 192
29-Nov-02 250
30-Nov-02 450
1-Dec-02 376
2-Dec-02 382
3-Dec-02 288
4-Dec-02 241
5-Dec-02 73
6-Dec-02 248
7-Dec-02 216
8-Dec-02 285
9-Dec-02 393
10-Dec-02 180
11-Dec-02 235
12-Dec-02 16
13-Dec-02 55
14-Dec-02 71
15-Dec-02 179
16-Dec-02 260
17-Dec-02 240
18-Dec-02 319
19-Dec-02 432
20-Dec-02 461
21-Dec-02 439
22-Dec-02 361
23-Dec-02 75
24-Dec-02 113
25-Dec-02 131
26-Dec-02 255
27-Dec-02 419
28-Dec-02 333
29-Dec-02 184
30-Dec-02 141
31-Dec-02 179
1-Jan-03 215
2-Jan-03 398
3-Jan-03 367
4-Jan-03 323
5-Jan-03 323
6-Jan-03 3
7-Jan-03 3
8-Jan-03 3
9-Jan-03 3
10-Jan-03 28
11-Jan-03 135
12-Jan-03 287
13-Jan-03 473
14-Jan-03 538
15-Jan-03 575
16-Jan-03 524
17-Jan-03 561
18-Jan-03 428
19-Jan-03 430
20-Jan-03 449
21-Jan-03 280
22-Jan-03 3
23-Jan-03 212
24-Jan-03 102
25-Jan-03 136
26-Jan-03 349
27-Jan-03 128
28-Jan-03 161
29-Jan-03 15
30-Jan-03 20
31-Jan-03 3
1-Feb-03 3
2-Feb-03 77
3-Feb-03 192
4-Feb-03 248
5-Feb-03 463
6-Feb-03 557
7-Feb-03 619
8-Feb-03 603
9-Feb-03 337
10-Feb-03 418
11-Feb-03 418
12-Feb-03 600
13-Feb-03 867
14-Feb-03 547
15-Feb-03 619
16-Feb-03 306
17-Feb-03 232
18-Feb-03 412
19-Feb-03 283
20-Feb-03 321
21-Feb-03 318
22-Feb-03 95
23-Feb-03 104
24-Feb-03 3
25-Feb-03 3
26-Feb-03 3
27-Feb-03 3
28-Feb-03 3
1-Mar-03 8
2-Mar-03 111
3-Mar-03 86
4-Mar-03 277
5-Mar-03 168
6-Mar-03 120
7-Mar-03 148
8-Mar-03 29
9-Mar-03 359
10-Mar-03 569
11-Mar-03 346
12-Mar-03 231
13-Mar-03 232
14-Mar-03 166
15-Mar-03 170
16-Mar-03 79
17-Mar-03 3
18-Mar-03 58
19-Mar-03 60
20-Mar-03 224
21-Mar-03 199
22-Mar-03 65
23-Mar-03 3
24-Mar-03 3
25-Mar-03 16
26-Mar-03 58
27-Mar-03 69
28-Mar-03 320
29-Mar-03 241
30-Mar-03 145
31-Mar-03 192
1-Apr-03 134
2-Apr-03 171
3-Apr-03 319
4-Apr-03 286
5-Apr-03 78
6-Apr-03 447
7-Apr-03 422
8-Apr-03 516
9-Apr-03 611