| Site ID: |
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2100 |
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Lat. |
29.0352 |
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China |
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Zhejiang |
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| River: |
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Qu |
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Long. |
119.1119 |
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| Site name: |
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Longyu |
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Contributing
area: |
11089 |
km2 |
Ratio to Comparison
Station: |
0.48 |
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| Latest measurement: |
21-Nov-09 |
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Mean annual
runoff: |
1215 |
mm |
(2003-2007) |
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| Hydrologic status: |
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2 |
Normal flow |
Total runoff
this year: |
947 |
mm |
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| Latest M/C ratio: |
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1.13 |
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Seven day
total: |
1 |
mm |
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| Estimated current discharge: |
107 |
m3/sec |
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Percent of
mean 7-day total: |
67.9 |
% |
(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: |
1262 |
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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1253 |
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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| 407 |
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2002 |
no data |
no data |
no data |
no data |
no data |
no data |
no data |
14.9 |
30.9 |
45.0 |
146.2 |
170.1 |
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| 1471 |
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2003 |
157.7 |
156.8 |
144.6 |
157.4 |
147.3 |
113.8 |
169.6 |
72.7 |
49.7 |
94.1 |
67.6 |
139.8 |
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| 1353 |
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2004 |
82.3 |
130.5 |
105.8 |
180.2 |
160.5 |
107.5 |
134.5 |
66.9 |
58.1 |
82.3 |
120.1 |
124.5 |
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| 1191 |
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2005 |
120.9 |
140.9 |
166.7 |
181.1 |
123.2 |
94.5 |
104.8 |
12.0 |
9.9 |
20.2 |
98.8 |
117.8 |
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| 975 |
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2006 |
91.7 |
90.6 |
136.5 |
188.1 |
148.4 |
98.1 |
89.7 |
39.2 |
39.9 |
53.2 |
0.0 |
0.0 |
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| 1083 |
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2007 |
118.1 |
114.6 |
115.1 |
169.4 |
124.0 |
79.0 |
76.3 |
25.9 |
31.3 |
51.2 |
84.5 |
93.9 |
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| 947 |
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2008 |
59.6 |
75.3 |
126.9 |
105.5 |
123.1 |
69.6 |
78.6 |
27.1 |
17.0 |
60.2 |
98.9 |
105.0 |
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| 913 |
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2009 |
88.0 |
91.5 |
119.8 |
152.8 |
110.1 |
98.8 |
109.3 |
31.9 |
14.3 |
36.3 |
60.1 |
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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