| Site ID: |
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2433 |
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Lat. |
62.9610 |
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USA |
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Alaska |
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| River: |
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Kuskokuim |
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Long. |
-155.5302 |
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| Site name: |
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McGrath |
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Contributing
area: |
35783 |
km2 |
Ratio to Comparison
Station: |
1.54 |
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| Latest measurement: |
7-Nov-09 |
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Mean annual
runoff: |
186 |
mm |
(2003-2007) |
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| Hydrologic status: |
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2 |
Normal flow |
Total runoff
this year: |
149 |
mm |
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| Latest M/C ratio: |
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1.10 |
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Seven day
total: |
1 |
mm |
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| Estimated current discharge: |
3 |
m3/sec |
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Percent of
mean 7-day total: |
52.0 |
% |
(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: |
1111 |
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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1079 |
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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| 147 |
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2002 |
no data |
no data |
no data |
no data |
no data |
no data |
no data |
10.7 |
9.6 |
18.5 |
60.3 |
48.2 |
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| 249 |
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2003 |
48.1 |
35.1 |
31.0 |
27.6 |
18.1 |
25.2 |
14.3 |
15.9 |
15.3 |
15.9 |
2.2 |
0.2 |
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| 153 |
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2004 |
7.4 |
13.6 |
11.6 |
9.0 |
28.1 |
19.6 |
16.7 |
16.2 |
6.1 |
2.3 |
0.2 |
22.4 |
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| 224 |
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2005 |
16.0 |
31.8 |
40.3 |
6.3 |
43.3 |
23.7 |
20.0 |
17.8 |
17.1 |
7.2 |
0.2 |
0.2 |
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| 158 |
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2006 |
0.2 |
5.2 |
0.3 |
2.5 |
18.0 |
23.8 |
22.0 |
22.2 |
26.2 |
37.1 |
0.0 |
0.0 |
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| 148 |
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2007 |
1.1 |
6.3 |
1.9 |
14.8 |
23.1 |
18.9 |
23.9 |
23.4 |
22.1 |
6.9 |
4.7 |
1.1 |
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| 149 |
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2008 |
3.1 |
12.5 |
12.7 |
3.8 |
31.3 |
25.9 |
20.9 |
18.8 |
18.4 |
1.6 |
0.2 |
0.3 |
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| 151 |
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2009 |
0.6 |
0.2 |
0.3 |
7.0 |
39.2 |
28.3 |
30.6 |
18.1 |
16.8 |
9.9 |
0.1 |
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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