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FICUF[ 7 Cons tant proportional I oss nodel F IGURE 8 Phi - i ndex model F IGUPE ? Vari at''le proporti onal loss mod el r"-.1 stols (see Ftgure 8) . qhe tl{o Palaneters of th19 nodel are DEPSTO allat 0, 0 betng flxed by votuse forcing if DEPSTO ls calculated from equatlon 4.3. (1I1) rhe varlabt€ Propolltonal loss Dodel, whlch uses a ttorton-tipe .guallon to al'low fo! a hlgher Propolllon of losa at the begr.nnlng of the gtorD than at tlte end (see Flgnrre 9) ' the fractlon of }oes 1a glven lry! zj=zE+lzo-zsle'qt) la.4) I I t" T I I I I I t I t I I I I I t t I
I lr ll lr ll ll t I t I I I t I I t t I whate z. - zI- 7;E - l fractlon of Ioss ln Intcrval j fractlon of lo6E at 6ta!t of stoaE f,racti.on of loss at end of €torh -=- (4.5) :.alnfall ln lntervrl i total rslnfall conattnt rhus, thla Eod.l is a 3-par€!ate! noalel. the piraDeters belng zEt zo ,trd o. (Not6 tlat IrEpsTo i5 not I pararbeter fo! this nodal). Work In th€ Neth€llands (Van clen aerg, 1,9??) suggests that ZO and ZE carl be estlE ted bv, MI orm - 2(1 - 9P) tt pa2e o.s(l - $ 1l P>2Q rhere Q 1a tho total \roluDe ot lunoft If.the voj.lDe€ a!9 folced anal ZO and ZE ate aleterDlned ln thla way, tjr€n d has a value of 2.O2. 4.3 Cooparlron of loss poalels 14.6) 14,7) ({.8) Ihe thr€e los€ 'Datels rrere coDparedl uslng the ndt_ll,near tie €urfac€ !ese!vo!,r routing as Dodel. thi oqraeot {n} was ftxed value at of o.57, DEpsm t}le found froe equation 4.3, ana the patanetjr fo! each X-oiar.rr""o Ddel and eactr catchient oo the c!6b;d";*L*rr*-tair. objectlve 's,i.tron functLon. .t"" ostng th1€ ealue of k ttrc rsn ou1..tiv. l,at tlr€n evrluated foa each evenl'. Ihe rerults are glven in TabLeB 4 _ 6. ::ot!:t1g of tha varue6 glven Ln thes€ trbles shoe6 the a ISE objecttve tenatedcy fo! tunctlon to alecreaso aE tlra A event lee\onal.te$tton ahrtatlon lncreases. of the ob1ectlve functton leat a nore t" th;;;;i;;i; unifo!& valqe roulil *.. be obtalned wlth X(observedl = Root pan gcuare ltean ordlnate
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
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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 ,
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Page 35 and 36: t t t I I I I I I I I t I I I I I I
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Page 51 and 52: I :;; i g8 @aon 66aO da6o6n q1fq6o^
Page 53 and 54: HE ! 3d g E '.6 +f lfri?ilol irooor
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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
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Page 71 and 72: II .l I 't I t I I a: I I I --^-.r-
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I I I I t I T I I I I t I I I I I I
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t I I I = sinul-atlon run 2 = optlm
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I I t I I t I t t I t t I I I I I 5
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t I I I I I I t .t t I t I t I I AP
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I 't I I I I I I I I I I t I I I I
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t I 'l t I I I I I I I t t I I I I
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t 'l 't I I I I I I I I I t I t I I
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I 'l 't t t I I t I .l I I I I I I
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I 't 'l ' ?lrl I I t I I t t I t t
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