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lloalel paraDete! k rras regresseal on tlilee catchnent characterlstics -<br />
slope, aiea and l.ength - for a1l the catchs€nts u6eal fo! palaDeter<br />
optlnlzation. When ustng the k value obtalnea fron the IsE objecttve<br />
f,unction tle beat. equatlon 1s:<br />
k = o.149 stopE-o'4o6 r€Ncrgo'o893<br />
wbere SIOPE is the avelage slope on<br />
and LENGTH ls t}Ie average l€ngth of<br />
The Dultlple correlatlon coefficlent 1s o.75 (R" -<br />
catchtlent in C<br />
catchE€nt 1n Eet!€s.<br />
The same calculation r,ras callled out for k values dellveil uslng the flt<br />
of the peak value as obJectlve functi.on. the best equatlon then becomes:<br />
k = o.155 srrpE-o'458 IENGTno'o998 (5.r2)<br />
Uere t}le Dultiple correLation coeffLcl.ent 13 O.7O (R" = .5O)<br />
It nust be stressed that ttrese equations, as nay be seen. nostly rest<br />
on the sfope, as has been indlcated before (EaLk anal Nienczlmowicz 1978).<br />
It nay app€ar surplising that the area does not affect k, a!.though its<br />
effect wil] be taken up by the length of flow. For the sDall catchn€nts<br />
exaeineal, lt vras found that t}Ie lapld process of lutloff i3 governed nore<br />
by sloPe tian by area. Fi$rre 17 'LenonEtlates equatlon 5'Il above'<br />
FIGURT I7<br />
Rel ati onshi P between<br />
k (NLR r{ith TL) and<br />
catchment characterlstics<br />
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