| Site ID: |
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2286 |
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Lat. |
33.2646 |
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Japan |
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0 |
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| River: |
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Chikugo |
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Long. |
130.4333 |
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| Site name: |
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0 |
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Contributing
area: |
2486 |
km2 |
Ratio to Comparison
Station: |
0.11 |
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| Latest measurement: |
6-Nov-09 |
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Mean annual
runoff: |
5123 |
mm |
(2003-2007) |
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| Hydrologic status: |
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2 |
Normal flow |
Total runoff
this year: |
4974 |
mm |
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| Latest M/C ratio: |
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1.26 |
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Seven day
total: |
1 |
mm |
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| Estimated current discharge: |
633 |
m3/sec |
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Percent of
mean 7-day total: |
123.3 |
% |
(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: |
2614 |
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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2564 |
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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| 2315 |
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2002 |
no data |
no data |
no data |
no data |
no data |
no data |
no data |
411.3 |
424.5 |
394.3 |
541.8 |
542.7 |
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| 5390 |
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2003 |
310.9 |
260.3 |
270.1 |
324.0 |
266.3 |
667.8 |
1100.0 |
445.0 |
453.1 |
604.0 |
352.1 |
336.9 |
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| 5807 |
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2004 |
357.5 |
276.6 |
332.1 |
252.8 |
264.6 |
805.3 |
1203.5 |
470.3 |
465.2 |
465.7 |
500.2 |
413.3 |
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| 5178 |
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2005 |
334.7 |
147.4 |
300.9 |
304.7 |
238.9 |
1158.7 |
888.4 |
345.9 |
339.6 |
408.9 |
310.2 |
399.7 |
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| 4228 |
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2006 |
293.6 |
308.7 |
474.4 |
334.9 |
169.8 |
704.2 |
847.8 |
241.5 |
353.2 |
499.9 |
0.0 |
0.0 |
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| 5013 |
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2007 |
306.9 |
312.2 |
384.8 |
283.3 |
356.6 |
790.7 |
795.8 |
293.7 |
363.1 |
409.4 |
439.8 |
277.0 |
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| 4974 |
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2008 |
418.7 |
254.9 |
298.8 |
388.4 |
359.8 |
663.9 |
957.8 |
169.1 |
252.3 |
378.3 |
400.8 |
430.8 |
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| 4643 |
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2009 |
424.4 |
404.8 |
338.0 |
250.0 |
324.0 |
832.9 |
894.0 |
313.0 |
274.2 |
396.8 |
190.9 |
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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