| Site ID: |
|
|
2109 |
|
|
|
|
Lat. |
23.6364 |
|
China |
|
|
Guangdong |
|
|
|
| River: |
|
|
Han |
|
|
|
|
Long. |
116.6450 |
|
|
|
|
|
|
|
|
|
| Site name: |
|
Chenghai |
|
|
|
Contributing
area: |
29929 |
km2 |
Ratio to Comparison
Station: |
1.29 |
|
|
|
|
| Latest measurement: |
21-Nov-09 |
|
|
|
Mean annual
runoff: |
840 |
mm |
(2003-2007) |
|
|
|
|
|
|
| Hydrologic status: |
|
2 |
Normal flow |
Total runoff
this year: |
1134 |
mm |
|
|
|
|
|
|
|
|
| Latest M/C ratio: |
|
1.35 |
|
|
|
Seven day
total: |
1 |
mm |
|
|
|
|
|
|
|
|
| Estimated current discharge: |
997 |
m3/sec |
|
Percent of
mean 7-day total: |
113.9 |
% |
(today's value compared to
mean for same period, 2003-2007) |
|
|
| Ice-cover determination: |
|
|
5 yr
recurrence flood: |
1939 |
m3/sec |
(from Log Pearson III
analysis) |
|
|
|
|
|
| Status Codes: 1 = Low
flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood |
|
1903 |
m3/sec |
(from Gumbel Extreme Value
analysis) |
|
|
|
|
| Comparison Station Information: |
Tokwe
Confluence D/s C/s (1495240) |
|
|
|
Contributing
Area: |
7280 |
sq mi |
23237 |
sq km |
|
|
| (Data from this gaging station are used for the calibration to
discharge, with an adjustment for different contributing areas) |
|
|
|
|
|
|
|
|
| Notes: |
Comparison station is
placeholder, only; this site is not yet calibrated to actual discharge |
|
|
|
|
|
|
|
|
|
| Discharge and runoff, based on satellite remote sensing (NASA
AMSR-E data) |
|
|
|
|
|
|
|
|
|
|
|
| (For U.S, sites, nearby ground station discharge may also be
shown) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2008-Present |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2002-Present |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Annual |
|
|
|
Monthly Total Runoff (mm),
computed from above satellite-based discharge data |
|
|
|
|
|
|
| Runoff |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| (mm) |
|
|
|
Jan |
Feb |
Mar |
April |
May |
June |
July |
Aug |
Sept |
Oct |
Nov |
Dec |
|
|
|
| 253 |
|
|
2002 |
no data |
no data |
no data |
no data |
no data |
no data |
no data |
52.9 |
40.7 |
39.8 |
49.6 |
70.2 |
|
|
|
| 662 |
|
|
2003 |
77.1 |
56.3 |
67.2 |
82.7 |
55.7 |
51.4 |
48.0 |
57.5 |
50.5 |
27.2 |
38.5 |
50.2 |
|
|
|
| 524 |
|
|
2004 |
62.3 |
60.9 |
53.6 |
86.3 |
55.7 |
30.8 |
23.5 |
33.4 |
25.0 |
29.9 |
18.4 |
44.3 |
|
|
|
| 934 |
|
|
2005 |
57.1 |
46.8 |
91.2 |
94.5 |
85.4 |
48.2 |
54.6 |
94.5 |
82.6 |
79.2 |
93.0 |
106.8 |
|
|
|
| 944 |
|
|
2006 |
84.9 |
83.9 |
96.5 |
115.7 |
93.1 |
91.7 |
93.6 |
110.9 |
93.8 |
79.7 |
0.0 |
0.0 |
|
|
|
| 1137 |
|
|
2007 |
104.2 |
94.0 |
103.1 |
115.8 |
104.7 |
81.6 |
92.7 |
89.1 |
86.8 |
92.3 |
82.1 |
90.6 |
|
|
|
| 1134 |
|
|
2008 |
96.1 |
84.3 |
98.7 |
103.2 |
100.2 |
65.8 |
77.7 |
110.1 |
97.9 |
97.8 |
95.1 |
106.8 |
|
|
|
| 1087 |
|
|
2009 |
103.3 |
98.2 |
100.1 |
125.8 |
106.4 |
85.6 |
94.3 |
112.2 |
92.3 |
102.0 |
67.0 |
0.0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Discharge is estimated directly via a rating equation from
the remote sensing data (M/C ratio) shown below. |
|
|
|
|
|
|
|
|
|