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']6 TABLF ]II 2462 ll ;; 3 9 5 9 Time of entry model - optinised values of ,TE, {min) lor4tt 665 12 16 30 5L2 6 943 9 3 6 5 112 11 712 1l 14 12 a9 13a rI II A hultipl.e reglession of the TE values fron Ta.ble 16 agalnst catchnent charactelistica produced the following equation: TE = 14.4 srpPE-o'27 r.ElrGTBo'13 The correlatlon coefflcient is .64 (R2 = .41) Ihe f,ord of tJle equation is not unexpected, are doDinant factors 1n detendnlng the tlne of the equation and data are shown in Figure 5 9 I5 (5-r9) since the slope and length of concentration. A plot FIGUF.E 25 Rel ati onshi p between TE (tine of entry) and catchnent characteri sti cs t f' I I I I t I I I I t I t I 3 t T
I I I I t I t t I I I I I t I t I Indppendent catc,mett 3 u61ng €quatlon 5.17 antl the apPloPriate values of slope dnd. length' ;;';.i; of It t., ptcdlccGil ior tho four ind6Pcntlent crtchtentt 3or' ioiz, azts, a'rt 447i. llte values ot 1B cbtrr.nad !!'6 tlr' lt4illctlon equatlon ale glven as folLc'tts: CatihDent Predlcted IE (Dln6l 301 2o52 4477 Wlth these corresPondlng values of tE the noalel was lnn fo! a1I of tne events on each catctu€nt anal the objectiv€ functlons calculated. Itle results obtatned 1n these lndlependent test3 ale tabulateA with thoae fr@ the other Doalels ln the next 3€ction. S.8 C@parlson of ooalels I to 6 It vras consldered that the best objective roethod of noalel coDparlson was spllt-test analysls, wlth nodel slbul.atlon on catcbbents \rh1ch had not eontllbuted to the r€lationabllF betre€n Dodel parabeters and catchEent characterls tLcs. For thls pu4)ose, ofle Dutch (3O1), tHo Swedlsh (42?6 arLd 44771 and one Brltlsh (2052) catchEent8 wete helal back from ti€ prevlou3 ajraly6es. Moalels wele codpared accoldi.ng to t}lr6e obJective functj.ons, lntegral square erlor (ISE), peak estisatLon (PEAK) and ttDe to peak (!fP). Values of theae fimctlons r'ere genelatetl for each eveot, ana the r€aultB of theBe analyses are shodn fo! each ind€pendent catclruent in fab1e6 17 to 20. No clear-cut conclusLons as t-o the dod€ls' rela!1ve perfo:.rlar|ce are posslble fror! scrutiny of t]rese trbles, and so an analysis of, vallrjtc€ was petforEed on the result.3, The anaLysis of varlance caLculatlons w€re pel.folled on the ISE objectl.ve functLon Dultiplled by the storn duratlon (the reasona for t}le l!\rltlpllcatlon ar€ outLlneal in Sectlon 4 on the loss nodelE) . A sutnDaly of the analyala for the slx noalel-s over the four catchloents (42 events) ls glven b€loy for the follorl,ng statistlcaL rlodel. L2 10 7 I rsE -N({U+q +8 +y + la8l }, q,t DC vhere ISE ls the lntegral squale elror objectlve functton d€pendent on nodel, catclment, anal event is tJle ovelal1 E6an value of ISE ,11
Page 1 and 2: - I I I I I I I I I T I I T I I I I
Page 3 and 4: I I I I I I I I I I I I I I I I CON
Page 5 and 6: I I 'l I I t I I f I I I t I I T I
Page 7 and 8: I t I I I I I I I I I I I I I ltr
Page 9 and 10: T -l 'l fhe $ork6hoP confin€tl lt
Page 11 and 12: I I 't t t I T I t t I I I I I I t
Page 13 and 14: I I "t 500 I I I t I I I I t I I I
Page 15 and 16: I I -f t T I I T t I T I T I t I I
Page 17 and 18: I t t T I I I T t I t l I I I I I I
Page 19 and 20: E t I I I T T I T t I I I I T I I I
Page 21 and 22: I t I I I T I r t I I I t t I I I I
Page 23 and 24: I lr ll lr ll ll t I t I I I t I I
Page 25 and 26: I t I I I I I I I t t shlch l,r cqu
Page 27 and 28: I t I I I I I I I I I I I t T I I I
Page 29 and 30: t I 't L - 1.n9th of tlo{ 1r !, k ,
Page 31 and 32: I I I t I I t I I I I I I I I t I I
Page 33 and 34: I I t I I I I t r t I I I I t t I I
Page 35 and 36: t t t I I I I I I I I t I I I I I I
Page 37 and 38: I t I I I I I I I I I I t I t I I I
Page 39 and 40: I I I I I l I I I I I I t I I t I I
Page 41 and 42: I I I I I I t I I I I I I I I t I I
Page 43 and 44: t I I I I I t I I I I I I I I I I I
Page 45 and 46: t I I I I I I I I I I I I I I I I I
Page 47: I I I I I I I I I t I I I I t I t I
Page 51 and 52: I :;; i g8 @aon 66aO da6o6n q1fq6o^
Page 53 and 54: HE ! 3d g E '.6 +f lfri?ilol irooor
Page 55 and 56: I I t I t I t I I t I t I I t I I I
Page 57 and 58: I I : I I I I I I t I I I t I I I I
Page 59 and 60: I t I I I I I I I I I t I t t I I I
Page 61 and 62: I I I I t I I I t I I t I I I I t I
Page 63 and 64: T I I T t I T T T T T T I T I I I I
Page 65 and 66: I I I I I I I T I I t I ! REFEREIEE
Page 67 and 68: I T I I I I t I I I I I I I I I I I
Page 69 and 70: T I I I t t I I t I t T I I I I I I
Page 71 and 72: II .l I 't I t I I a: I I I --^-.r-
Page 73 and 74: I I I I t I T I I I I t I I I I I I
Page 75 and 76: t I I I = sinul-atlon run 2 = optlm
Page 77 and 78: I I t I I t I t t I t t I I I I I 5
Page 79 and 80: t I I I I I I t .t t I t I t I I AP
Page 81 and 82: I 't I I I I I I I I I I t I I I I
Page 83 and 84: t I 'l t I I I I I I I t t I I I I
Page 85 and 86: t 'l 't I I I I I I I I I t I t I I
Page 87 and 88: I 'l 't t t I I t I .l I I I I I I
Page 89 and 90: I 't 'l ' ?lrl I I t I I t t I t t

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