| Site ID: |
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2276 |
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Lat. |
37.5922 |
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Japan |
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0 |
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| River: |
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Agano |
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Long. |
139.8617 |
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| Site name: |
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0 |
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Contributing
area: |
431 |
km2 |
Ratio to Comparison
Station: |
0.02 |
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| Latest measurement: |
6-Nov-09 |
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Mean annual
runoff: |
34142 |
mm |
(2003-2007) |
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| Hydrologic status: |
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2 |
Normal flow |
Total runoff
this year: |
55065 |
mm |
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| Latest M/C ratio: |
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1.21 |
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Seven day
total: |
1 |
mm |
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| Estimated current discharge: |
417 |
m3/sec |
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Percent of
mean 7-day total: |
103.1 |
% |
(today's value compared to
mean for same period, 2003-2007) |
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| Ice-cover determination: |
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5 yr
recurrence flood: |
3969 |
m3/sec |
(from Log Pearson III
analysis) |
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| Status Codes: 1 = Low
flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood |
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3806 |
m3/sec |
(from Gumbel Extreme Value
analysis) |
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| Comparison Station Information: |
Tokwe
Confluence D/s C/s (1495240) |
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Contributing
Area: |
7280 |
sq mi |
23237 |
sq km |
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| (Data from this gaging station are used for the calibration to
discharge, with an adjustment for different contributing areas) |
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| Notes: |
Comparison station is
placeholder, only; this site is not yet calibrated to actual discharge |
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| Discharge and runoff, based on satellite remote sensing (NASA
AMSR-E data) |
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| (For U.S, sites, nearby ground station discharge may also be
shown) |
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2008-Present |
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2002-Present |
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| Annual |
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|
Monthly Total Runoff (mm),
computed from above satellite-based discharge data |
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| Runoff |
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| (mm) |
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Jan |
Feb |
Mar |
April |
May |
June |
July |
Aug |
Sept |
Oct |
Nov |
Dec |
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| 3496 |
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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 |
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| 19924 |
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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 |
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| 18343 |
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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 |
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| 44994 |
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2005 |
982.2 |
2823.1 |
7949.4 |
3285.2 |
12021.1 |
7761.0 |
76.8 |
32.2 |
647.8 |
1445.5 |
3867.7 |
4102.2 |
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| 43304 |
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2006 |
5592.6 |
5738.1 |
2110.9 |
5177.1 |
11459.3 |
10778.4 |
222.4 |
21.0 |
242.1 |
1962.4 |
0.0 |
0.0 |
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| 44144 |
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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 |
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| 55065 |
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2008 |
6203.1 |
6244.2 |
6278.8 |
3716.5 |
11804.6 |
9820.9 |
342.9 |
20.7 |
650.0 |
2277.1 |
3604.1 |
4102.1 |
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| 35792 |
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2009 |
4074.3 |
3430.8 |
1651.6 |
2651.5 |
10428.4 |
10464.2 |
373.0 |
20.7 |
430.2 |
1451.2 |
816.4 |
0.0 |
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| Discharge is estimated directly via a rating equation from
the remote sensing data (M/C ratio) shown below. |
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