Orange Basin
Station: Vioolsdrif


GRDC Station Information
STN Derived Subbasin Information
Station Name (GRDC ID): Vioolsdrif (1159100) Basin Name: Orange
River Name: Oranje Next Downstream Station:None
GRDC Country Code: ZA Distance to Next Downstream Station: N.A.
Start Year [Month]: 1964 [10] Upstream Station(s): Upington (1159300)
End Year [Month]: 1986 [9]
Mean Discharge: 146 m3/s
Minimum Discharge: 0 m3/s
Maximum Discharge: 2105 m3/s Length of Upstream Mainstem: 1717 km
Mean Interstation Discharge: -74 m3/s Distance to Basin Outlet: 197 km
GRDC Catchment Area: 850530 km2 STN Catchment Area: 838168 km2
GRDC Interstation Area: 814074 km2 STN Interstation Area: 485823 km2
GRDC Station Runoff: 5 mm/yr STN Station Runoff: 5 mm/yr
GRDC Interstation Runoff: -3 mm/yr STN Interstation Runoff: -5 mm/yr
Station Field DescriptionsBasin Field Descriptions


Download
Site Descriptor Information Station Time Series Data


Hydrograph Station Data
Extreme Values Over Period Of Record
Month MeanQ
m3/s
MinQ
m3/s
MaxQ
m3/s
Jan 163.8 30.0 1001.0
Feb 319.7 0.0 2105.0
Mar 202.6 15.0 742.0
Apr 217.2 9.0 1055.0
May 125.8 0.0 487.0
Jun 131.2 0.0 478.0
Jul 102.7 0.0 252.0
Aug 86.3 0.0 342.0
Sep 72.9 0.0 330.0
Oct 84.2 0.0 209.0
Nov 122.1 0.0 430.0
Dec 123.5 15.0 451.0