Site ID: 1949 Lat. 24.9157 Bangladesh Chittagong
River: Kusiyara Long. 92.2992
Site name: Chargram Contributing area: 28623 km2 Ratio to Comparison Station: 0.07
Latest measurement: 8-Jan-10 Mean annual runoff: 1470 mm (2003-2007)
Hydrologic status: 2 Normal flow Total runoff this year: 1439 mm
Latest M/C ratio: 1.23 Seven day total: 1 mm
Estimated current discharge: 1008 m3/sec Percent of mean 7-day total: 99.4 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 2757 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2743 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Pandu (2851300)           Contributing Area:   sq mi 405697 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Rating equation is based on comparison of monthly means from a station in the region
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
542 2002 no data no data no data no data no data no data no data 165.4 119.8 95.1 85.3 76.3
1368 2003 84.0 53.2 51.9 136.8 142.5 181.5 179.8 162.5 132.4 95.6 64.5 83.4
1585 2004 78.3 58.9 39.9 159.8 225.2 183.0 211.5 203.5 171.6 113.5 72.2 67.5
1534 2005 63.7 57.3 146.0 147.8 188.8 174.9 193.4 201.6 134.9 89.7 66.8 69.6
1130 2006 61.1 42.4 57.6 92.3 113.5 188.6 200.8 177.1 125.0 71.2 0.0 0.0
1733 2007 64.8 63.9 54.3 172.5 152.5 185.3 192.1 190.5 203.1 186.9 153.4 113.4
1439 2008 120.1 82.7 83.5 99.5 82.7 132.4 177.0 161.0 152.9 125.5 114.6 107.2
1313 2009 97.2 79.9 67.2 84.4 121.8 158.6 156.8 168.1 116.6 79.3 88.9 93.9
Mean Annual Runoff: 1465 Standard Deviation: 207
Trend in Annual Runoff (slope):  11.22
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from a land parcel (ca 10 km x 10 km) near the river; blue line from a parcel centered over the river.
Brown line is their ratio (M/C; scale on right) and is used to estimate river discharge via a rating equation.
Rating equations are being developed and applied on an individual basis. For calibration status, see "notes" entry, above.
When data above show calibration site values lower than for the measurement site, discharge estimation may not be possible.
GoogleEarth View of Measurement Site
1949.jpg
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