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Table 1

Physiographic and hydro-climatic characteristics of the study catchments

CatchmentOrara RiverOurimbah CreekCurrambene CreekPambula River
Station ID 204025 211013 216004 220003 
Mean annual rainfall (mm) 1,793 1,230 1,199 903 
Mean annual runoff (mm) 946 227 215 216 
Catchment area (km2135 83 95 105 
Main stream slope (m/km) 14.8 7.8 13.5 
Catchment relief (m) 800 334 300 727 
Number of sub-areas 17 15 16 15 
Average sub-area area (km27.9 5.5 5.9 
Data period 1970–2009 1976–2010 1970–2011 1993–2011 
Number of events 43 39 32 23 
CatchmentOrara RiverOurimbah CreekCurrambene CreekPambula River
Station ID 204025 211013 216004 220003 
Mean annual rainfall (mm) 1,793 1,230 1,199 903 
Mean annual runoff (mm) 946 227 215 216 
Catchment area (km2135 83 95 105 
Main stream slope (m/km) 14.8 7.8 13.5 
Catchment relief (m) 800 334 300 727 
Number of sub-areas 17 15 16 15 
Average sub-area area (km27.9 5.5 5.9 
Data period 1970–2009 1976–2010 1970–2011 1993–2011 
Number of events 43 39 32 23 
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