Site ID:			1271					Lat.	-19.3395		Botswana			Ngamiland
River:			Okavango Delta					Long.	22.5585
Site name:			Seronga				Contributing area:		258962	km2	Ratio to Comparison Station:			2.42
Latest measurement:			15-Nov-09				Mean annual runoff:		10	mm	(2003-2007)
Hydrologic status:			1	Ice-covered		Total runoff this year:			6	mm
Latest M/C ratio:			1.25				Seven day total:		1	mm
Estimated current discharge:			21	m3/sec		Percent of mean 7-day total:			88.8	%	(today's value compared to mean for same period, 2003-2007)
Ice-cover determination:			M<-9000		5 yr recurrence flood:				410	m3/sec	(from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood									429	m3/sec	(from Gumbel Extreme Value analysis)
Comparison Station Information:				Oxenham Ranch (1196400)							Contributing Area:			sq mi	107086	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 (including maximum means and minimum means).
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
2			2002	no data	no data	no data	no data	no data	no data	no data	0.8	0.5	0.4	0.3	0.3
8			2003	0.2	0.2	0.2	0.6	2.0	1.8	1.4	0.8	0.4	0.3	0.2	0.2
19			2004	0.2	0.3	4.3	3.8	2.9	2.2	1.6	1.3	1.0	0.9	0.5	0.4
7			2005	0.2	0.2	0.2	0.9	2.2	1.9	0.2	0.5	0.2	0.2	0.2	0.2
6			2006	0.2	0.2	0.4	0.6	0.9	1.3	1.3	0.6	0.3	0.2	0.0	0.0
10			2007	0.2	0.2	1.2	2.3	2.8	1.6	0.8	0.4	0.2	0.2	0.2	0.2
6			2008	0.2	0.2	0.2	0.5	1.4	1.3	0.8	0.4	0.2	0.2	0.2	0.2
11			2009	0.2	0.2	0.6	3.3	2.9	1.9	1.0	0.5	0.3	0.2	0.1	0.0
	Mean Annual Runoff:			10		Standard Deviation:		5
	Trend in Annual Runoff (slope):			-1.17