| Site ID: |
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1946 |
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Lat. |
27.1014 |
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India |
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Assam |
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| River: |
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Brahmaputra |
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Long. |
94.5120 |
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| Site name: |
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Sibsagar |
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Contributing
area: |
330338 |
km2 |
Ratio to Comparison
Station: |
14.22 |
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| Latest measurement: |
19-Nov-09 |
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Mean annual
runoff: |
175 |
mm |
(2003-2007) |
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| Hydrologic status: |
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2 |
Normal flow |
Total runoff
this year: |
207 |
mm |
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| Latest M/C ratio: |
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1.40 |
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Seven day
total: |
1 |
mm |
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| Estimated current discharge: |
1218 |
m3/sec |
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Percent of
mean 7-day total: |
66.9 |
% |
(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: |
6537 |
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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6532 |
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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| 53 |
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2002 |
no data |
no data |
no data |
no data |
no data |
no data |
no data |
14.3 |
12.0 |
14.4 |
7.4 |
4.9 |
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| 141 |
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2003 |
4.9 |
4.2 |
6.8 |
7.4 |
13.7 |
13.7 |
28.4 |
24.0 |
15.3 |
14.0 |
4.1 |
4.8 |
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| 140 |
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2004 |
5.1 |
3.3 |
6.2 |
12.0 |
12.4 |
11.9 |
27.9 |
22.7 |
16.9 |
12.1 |
7.0 |
2.2 |
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| 209 |
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2005 |
2.9 |
2.6 |
10.3 |
23.3 |
23.6 |
25.5 |
26.8 |
29.0 |
23.3 |
16.5 |
11.3 |
14.0 |
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| 179 |
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2006 |
8.0 |
5.3 |
17.9 |
16.6 |
18.7 |
22.5 |
24.8 |
20.7 |
23.4 |
20.7 |
0.0 |
0.0 |
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| 207 |
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2007 |
12.2 |
9.9 |
12.7 |
15.3 |
15.0 |
22.7 |
19.6 |
29.4 |
29.9 |
18.9 |
13.4 |
7.9 |
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| 207 |
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2008 |
8.9 |
9.5 |
9.8 |
15.3 |
14.9 |
21.6 |
30.0 |
31.3 |
24.9 |
14.7 |
15.6 |
10.7 |
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| 160 |
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2009 |
9.6 |
9.0 |
12.4 |
10.7 |
13.9 |
15.5 |
23.3 |
27.2 |
14.4 |
16.6 |
7.4 |
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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