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ANNEX III: CHARACTERISTICS AND SUMMARY STATISTICS ON THE MAIN DATABASE ZA_SWB.DBF

Field nameField descriptionUnitType of dataColumn WidthCount non blankMaximumMinimumAverageTotal
SADC IDSADC Database Identification Number Label63843    
Nat IDNational Database Identification Number Value63843    
Nat IndexIndex in national database (if applicable) Label83788    
NameName of the water body Label403843    
LatitudeLatitude (in decimal degrees)dec degValue83767-22.20-34.73-30 
LongitudeLongitude (in decimal degrees)dec degValue7376732.8717.6326 
Grid_ RefMap grid reference Label60    
Map_NrMap number Label60    
Coord_SouthCoordinates south (in any format)dmsLabel10381    
Coord_EastCoordinates east (in any format)dmsLabel10381    
UTM_ZoneUTM zone number Value60    
UTM_CoordUTM coordinates Label60    
RivernameName of the main river(s) which feed(s) the water body Label223492    
Sub-catchmentName of the sub-catchment Label60    
Main catchmentName of the main stream catchment Label60    
DivisionDivision in which the water body is situated (if applicable) Label60    
DistrictDistrict in which the water body is situated Label60    
ProvinceProvince or Region in which the water body is situated Label6518    
CountryCountry in which the water body is situated Label23843    
InternationalIs the water body shared by different countries? Label60    
OwnerUnit which controls the water body or name of owner Label6143    
OwnertypeType of ownership Label60    
Surf. areaFull supply surface areahaValue83397417000.1080386258.6
CapacityFull supply capacitym3Value12371356737780005000.001004047337280277600
MaxdeptMaximum depthmValue63016072.0061 
Mean depthMean depthmValue60    
Catch. areaCatchment area of the water bodykm2Value813179903.001.002085273126
pHAverage pH value of surface waterpHValue52289.004.708 
ConductivityAverage conductivity of surface waterμSValue521035177.00-9.00792 
TransparencyAverage Secchi Disk valuecmValue6224.001.003 
PermanenceIs the water body permanent or seasonal? Label60    
SolltypeMain soil type of the catchment of the reservoirFAOLabel60    
TypeType of water body (Lake, Swamp or Reservoir) Label1539    
Constr_YrConstruction year of the damYYYYValueA3404199718001972 
WallheightHeight of the dam wallmValue43578933.0011 
ConditionDam wall condition Label60    
Siltation %Estimated percentage of dam siltation (volume %)%Value643070.001.003 
FencedIs the damwall fenced ? Label60    
AccessAccess by road Label60    
Dist.villDistance from the nearest villagekmValue53581190.00019 
Main useMain use of the water body Value10    
DomesticIs the water body used for domestic water supply? Label10    
IrrigationIs the water body used for irrigation? Label1168    
LivestockIs the water body used for livestock watering? Label10    
Municipal waterIs the water body used for municipal water supply? Label193    
BricksIs the water body used for brick construction? Label12    
IndustryIs the water body used for industrial purposes? Label14    
FishingIs the water body used for fishing? Label10    
Other useAny other use of the water body? Label60    
CrocsPresence of crocodiles Label10    
HyacinthPresence of water hyacinth (Eichornia crassipes) Label10    
Hook and linePresence of hook and line fishing Label10    
TrapsPresence of trap fishing Label10    
SportPresence of sport fishing Label10    
Gill netPresence of gill net fishing Label10    
Seine netsPresence of seine net fishing Label10    
FisherfolkNumber of net fishers Value60    
NetsNumber of gill nets used (1 net = 100m2 mounted) Value60    
BoatsNumber of boats/canoes/vessels Value60    
Catch/yrTotal yearly fish catch Value60    
CommentsAny observations or comments on data collection or water body Label109122    
Source of dataSource of Data Label803843    
Orig_IDID in original database Value6493    
Orig_RefReference source in original database Label6493    
Dupe_IDSADC ID of possible duplicate record Label68    
Main_IDSADC ID of water body where this water body belongs to Label60    
Hydro numberHydro Number Label758    
HydrozoneHydrozone Label33787    
SubzoneSubzone Label60    
Drainage regionDrainage Region Label467    
LocalityLocality Label293774    
ReliabilityReliability of Source data Label90    

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