| Site ID: |
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27 |
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Lat. |
25.5421 |
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Bangladesh |
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Rajshahi |
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| River: |
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Brahmaputra |
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Long. |
89.7776 |
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| Site name: |
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Gaibanda |
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Contributing
area: |
498582 |
km2 |
Ratio to Comparison
Station: |
21.46 |
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| Latest measurement: |
9-Nov-09 |
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Mean annual
runoff: |
111 |
mm |
(2003-2007) |
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| Hydrologic status: |
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2 |
Normal flow |
Total runoff
this year: |
188 |
mm |
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| Latest M/C ratio: |
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1.67 |
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Seven day
total: |
2 |
mm |
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| Estimated current discharge: |
2527 |
m3/sec |
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Percent of
mean 7-day total: |
128.5 |
% |
(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: |
8455 |
m3/sec |
(from Log Pearson III
analysis) |
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| Status Codes: 1 = Low
flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood |
|
8195 |
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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| 23 |
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2002 |
no data |
no data |
no data |
no data |
no data |
no data |
no data |
11.6 |
6.1 |
2.6 |
1.6 |
0.6 |
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| 62 |
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2003 |
2.0 |
6.6 |
5.0 |
1.4 |
5.3 |
6.1 |
16.3 |
11.2 |
4.2 |
1.2 |
1.4 |
1.1 |
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| 62 |
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2004 |
1.2 |
6.3 |
2.7 |
3.6 |
2.8 |
6.2 |
14.3 |
10.8 |
4.7 |
7.1 |
1.7 |
1.1 |
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| 134 |
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2005 |
2.1 |
5.1 |
3.3 |
11.1 |
11.5 |
10.3 |
13.7 |
21.5 |
20.6 |
16.8 |
9.6 |
8.5 |
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| 116 |
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2006 |
7.3 |
8.3 |
10.6 |
7.4 |
10.4 |
15.3 |
15.4 |
14.6 |
14.7 |
12.3 |
0.0 |
0.0 |
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| 181 |
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2007 |
10.1 |
11.4 |
7.7 |
11.9 |
12.6 |
18.6 |
18.2 |
25.5 |
26.4 |
20.8 |
11.2 |
6.8 |
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| 188 |
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2008 |
10.3 |
14.6 |
10.0 |
8.7 |
14.3 |
17.1 |
16.7 |
27.6 |
27.7 |
17.1 |
14.7 |
9.2 |
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| 151 |
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2009 |
10.1 |
13.4 |
10.6 |
10.0 |
14.7 |
14.0 |
15.6 |
23.1 |
17.9 |
15.9 |
5.8 |
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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