| Site ID: |
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46 |
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Lat. |
28.9243 |
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China |
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Hunan |
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| River: |
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Yuan |
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Long. |
112.4863 |
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| Site name: |
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Yuanjiang |
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Contributing
area: |
99821 |
km2 |
Ratio to Comparison
Station: |
4.30 |
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| Latest measurement: |
8-Nov-09 |
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Mean annual
runoff: |
211 |
mm |
(2003-2007) |
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| Hydrologic status: |
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2 |
Normal flow |
Total runoff
this year: |
179 |
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: |
608 |
m3/sec |
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Percent of
mean 7-day total: |
99.3 |
% |
(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: |
3247 |
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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3129 |
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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| 115 |
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2002 |
no data |
no data |
no data |
no data |
no data |
no data |
no data |
42.2 |
37.2 |
20.9 |
9.1 |
5.5 |
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| 261 |
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2003 |
12.5 |
6.8 |
9.0 |
4.4 |
16.6 |
31.3 |
38.5 |
31.0 |
46.1 |
28.3 |
16.9 |
19.4 |
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| 246 |
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2004 |
18.4 |
21.0 |
15.9 |
5.3 |
18.4 |
31.6 |
27.7 |
28.7 |
33.7 |
18.4 |
12.9 |
14.6 |
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| 226 |
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2005 |
12.9 |
10.6 |
13.8 |
1.2 |
16.0 |
27.0 |
19.2 |
42.2 |
41.5 |
21.4 |
10.2 |
9.9 |
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| 119 |
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2006 |
5.1 |
4.9 |
5.3 |
1.3 |
12.6 |
20.6 |
13.8 |
18.2 |
21.1 |
16.5 |
0.0 |
0.0 |
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| 201 |
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2007 |
5.3 |
11.8 |
6.6 |
1.4 |
5.7 |
16.5 |
24.0 |
52.0 |
32.5 |
21.7 |
13.7 |
9.8 |
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| 179 |
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2008 |
11.3 |
11.4 |
9.7 |
3.9 |
6.3 |
8.6 |
12.4 |
36.8 |
37.5 |
19.2 |
14.1 |
8.3 |
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| 142 |
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2009 |
9.1 |
7.6 |
5.3 |
3.7 |
8.1 |
10.8 |
17.3 |
30.9 |
25.5 |
18.8 |
4.9 |
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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