| Site ID: |
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882 |
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Lat. |
61.9325 |
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USA |
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0 |
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| River: |
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Copper |
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Long. |
-145.2779 |
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| Site name: |
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0 |
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Contributing
area: |
27250 |
km2 |
Ratio to Comparison
Station: |
0.47 |
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| Latest measurement: |
12-Nov-09 |
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Mean annual
runoff: |
482 |
mm |
(2003-2007) |
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| Hydrologic status: |
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2 |
Normal flow |
Total runoff
this year: |
459 |
mm |
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| Latest M/C ratio: |
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1.01 |
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Seven day
total: |
1 |
mm |
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| Estimated current discharge: |
924 |
m3/sec |
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Percent of
mean 7-day total: |
308.2 |
% |
(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: |
1171 |
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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1154 |
m3/sec |
(from Gumbel Extreme Value analysis) |
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| Comparison Station Information: |
Chitina,
Alas. (4102700) |
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Contributing
Area: |
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sq mi |
58189 |
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: |
Rating equation is based
on comparison of monthly means from a station in the region |
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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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| 213 |
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2002 |
no data |
no data |
no data |
no data |
no data |
no data |
no data |
56.4 |
51.4 |
47.9 |
33.9 |
23.4 |
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| 507 |
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2003 |
22.9 |
19.6 |
22.9 |
23.9 |
50.2 |
59.0 |
68.4 |
69.6 |
75.8 |
49.4 |
22.3 |
22.9 |
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| 509 |
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2004 |
22.9 |
21.4 |
22.9 |
24.1 |
60.2 |
64.3 |
69.6 |
54.1 |
61.4 |
53.1 |
31.5 |
23.1 |
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| 469 |
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2005 |
22.9 |
20.6 |
22.9 |
24.2 |
48.7 |
61.2 |
52.5 |
64.9 |
55.5 |
45.9 |
26.7 |
22.9 |
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| 440 |
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2006 |
22.9 |
20.6 |
22.9 |
22.1 |
53.0 |
54.2 |
64.9 |
62.9 |
55.1 |
61.7 |
0.0 |
0.0 |
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| 486 |
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2007 |
22.9 |
20.6 |
22.9 |
21.8 |
43.2 |
61.9 |
59.0 |
63.9 |
56.1 |
58.9 |
33.9 |
21.4 |
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| 459 |
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2008 |
22.9 |
21.4 |
22.9 |
24.4 |
51.7 |
58.7 |
69.9 |
64.8 |
49.4 |
28.0 |
22.1 |
22.9 |
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| 473 |
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2009 |
24.5 |
20.6 |
22.9 |
22.1 |
38.3 |
59.4 |
74.7 |
64.5 |
58.0 |
58.9 |
28.9 |
0.0 |
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Mean Annual Runoff: |
478 |
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Standard Deviation: |
27 |
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Trend in Annual Runoff
(slope): |
-10.33 |
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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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