Site ID: 2275 Lat. 37.8205 Japan 0
River: Agano Long. 139.1644
Site name: 0 Contributing area: 7864 km2 Ratio to Comparison Station: 0.28
Latest measurement: 13-Jul-10 Mean annual runoff: 1559 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 1106.3 mm
Latest M/C ratio: 1.10 Seven day total: 1.4 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 23.9 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 2824 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2806 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
409 2002 no data no data no data no data no data no data no data 68.4 26.8 92.8 118.4 102.9
1443 2003 122.1 60.3 42.3 123.3 514.8 300.5 34.8 15.9 9.0 75.5 21.9 123.1
1055 2004 74.3 112.5 58.9 111.8 358.7 189.8 29.5 14.4 18.4 19.2 24.8 42.5
1933 2005 65.1 60.2 206.5 137.0 506.1 396.7 47.2 32.1 75.6 122.5 131.9 152.2
1558 2006 229.9 122.0 127.6 134.5 489.4 223.8 14.9 29.3 62.8 124.0 0.0 0.0
1718 2007 180.7 163.6 157.6 155.1 351.2 250.4 24.3 24.8 79.3 69.9 117.6 143.8
1654 2008 124.2 138.4 73.8 105.9 470.4 249.5 26.1 22.3 83.1 89.6 126.8 144.1
1551 2009 166.3 87.8 84.6 135.0 374.3 217.8 22.2 29.5 67.1 124.7 117.8 124.0
1106 2010 160.8 121.9 117.8 167.2 256.4 263.0 19.3 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 1559 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 24
23-Jul-02 24
24-Jul-02 3
25-Jul-02 3
26-Jul-02 3
27-Jul-02 6
28-Jul-02 3
29-Jul-02 66
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-02 431
10-Aug-02 45
11-Aug-02 3
12-Aug-02 3
13-Aug-02 120
14-Aug-02 945
15-Aug-02 1082
16-Aug-02 923
17-Aug-02 659
18-Aug-02 286
19-Aug-02 303
20-Aug-02 151
21-Aug-02 278
22-Aug-02 74
23-Aug-02 184
24-Aug-02 125
25-Aug-02 161
26-Aug-02 53
27-Aug-02 3
28-Aug-02 3
29-Aug-02 3
30-Aug-02 172
31-Aug-02 205
1-Sep-02 306
2-Sep-02 280
3-Sep-02 268
4-Sep-02 336
5-Sep-02 123
6-Sep-02 192
7-Sep-02 6
8-Sep-02 3
9-Sep-02 36
10-Sep-02 59
11-Sep-02 3
12-Sep-02 50
13-Sep-02 15
14-Sep-02 194
15-Sep-02 424
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 50
30-Sep-02 69
1-Oct-02 175
2-Oct-02 262
3-Oct-02 437
4-Oct-02 455
5-Oct-02 428
6-Oct-02 373
7-Oct-02 3
8-Oct-02 3
9-Oct-02 15
10-Oct-02 144
11-Oct-02 163
12-Oct-02 345
13-Oct-02 304
14-Oct-02 358
15-Oct-02 542
16-Oct-02 250
17-Oct-02 479
18-Oct-02 585
19-Oct-02 601
20-Oct-02 571
21-Oct-02 366
22-Oct-02 172
23-Oct-02 3
24-Oct-02 3
25-Oct-02 3
26-Oct-02 204
27-Oct-02 272
28-Oct-02 250
29-Oct-02 184
30-Oct-02 202
31-Oct-02 294
1-Nov-02 259
2-Nov-02 397
3-Nov-02 135
4-Nov-02 171
5-Nov-02 228
6-Nov-02 177
7-Nov-02 269
8-Nov-02 458
9-Nov-02 526
10-Nov-02 785
11-Nov-02 715
12-Nov-02 495
13-Nov-02 664
14-Nov-02 496
15-Nov-02 453
16-Nov-02 456
17-Nov-02 239
18-Nov-02 595
19-Nov-02 624
20-Nov-02 531
21-Nov-02 314
22-Nov-02 180
23-Nov-02 20
24-Nov-02 3
25-Nov-02 3
26-Nov-02 3
27-Nov-02 92
28-Nov-02 404
29-Nov-02 539
30-Nov-02 545
1-Dec-02 752
2-Dec-02 753
3-Dec-02 529
4-Dec-02 778
5-Dec-02 534
6-Dec-02 534
7-Dec-02 569
8-Dec-02 455
9-Dec-02 436
10-Dec-02 435
11-Dec-02 427
12-Dec-02 3
13-Dec-02 3
14-Dec-02 3
15-Dec-02 3
16-Dec-02 3
17-Dec-02 3
18-Dec-02 3
19-Dec-02 133
20-Dec-02 417
21-Dec-02 509
22-Dec-02 344
23-Dec-02 218
24-Dec-02 118
25-Dec-02 106
26-Dec-02 173
27-Dec-02 260
28-Dec-02 11
29-Dec-02 213
30-Dec-02 363
31-Dec-02 270
1-Jan-03 394
2-Jan-03 96
3-Jan-03 3
4-Jan-03 438
5-Jan-03 244
6-Jan-03 409
7-Jan-03 334
8-Jan-03 3
9-Jan-03 13
10-Jan-03 3
11-Jan-03 3
12-Jan-03 99
13-Jan-03 206
14-Jan-03 541
15-Jan-03 861
16-Jan-03 681
17-Jan-03 514
18-Jan-03 550
19-Jan-03 388
20-Jan-03 476
21-Jan-03 786
22-Jan-03 438
23-Jan-03 563
24-Jan-03 536
25-Jan-03 362
26-Jan-03 343
27-Jan-03 271
28-Jan-03 242
29-Jan-03 664
30-Jan-03 451
31-Jan-03 200
1-Feb-03 125
2-Feb-03 3
3-Feb-03 67
4-Feb-03 103
5-Feb-03 342
6-Feb-03 427
7-Feb-03 362
8-Feb-03 286
9-Feb-03 168
10-Feb-03 258
11-Feb-03 258
12-Feb-03 487
13-Feb-03 578
14-Feb-03 685
15-Feb-03 703
16-Feb-03 295
17-Feb-03 267
18-Feb-03 37
19-Feb-03 3
20-Feb-03 3
21-Feb-03 3
22-Feb-03 3
23-Feb-03 3
24-Feb-03 3
25-Feb-03 3
26-Feb-03 3
27-Feb-03 3
28-Feb-03 3
1-Mar-03 3
2-Mar-03 45
3-Mar-03 37
4-Mar-03 236
5-Mar-03 114
6-Mar-03 3
7-Mar-03 3
8-Mar-03 3
9-Mar-03 230
10-Mar-03 362
11-Mar-03 253
12-Mar-03 160
13-Mar-03 122
14-Mar-03 225
15-Mar-03 289
16-Mar-03 291
17-Mar-03 227
18-Mar-03 3
19-Mar-03 3
20-Mar-03 37
21-Mar-03 3
22-Mar-03 3
23-Mar-03 3 <