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<br />Draft ARR Book VI <br /> <br /> <br />. Some confusion in industry <br />. ARR87, Chapter 13: <br />AEP = I (Area, Method) <br />. Current Bureau of Meteorology: <br />AEP=l:lO' <br />. New guidelines: <br />AEP = I (Area) <br />. Based on outcome of review by Prof Eric <br />Laurenson (Monash Uni) & Dr George <br />Kuczera (Newcastle Unl) <br /> <br /> <br />8/9/98 ,- <br /> <br /> <br />1.0E4I <br /> <br />.~~ <br /> <br />~=;.:....~:': ~'l'~" <br />-..............."'..Iow'<;,; I <br />........ ...e.,,'" <br />C.v-l0n <br />(i\~'r.('- tl~ ' <br />" e!; ~. <br />0-1 ;}!t <br />\) <br />;;> <br />, <br /> <br />.~~ <br /> <br /> <br />~ 101<-(1$ <br />I <br />'J 'OIHlI <br /> <br />.~~ <br /> <br />I,DE.o& <br /> <br />.~~ <br />" <br /> <br />1000 'QOll\I <br /> <br />- <br /> <br />.. <br /> <br />.-....(....} <br /> <br />. <br /> <br /> <br /> .~~ HIE-!C' <br /> _010""",''''_ <br /> .~~ .~~ ...._.........10_'_ <br /> 1.00.o.I .~~ <br />t .~~ I '.lle..(15 <br />i UIE.(lII I '.OE.o& <br /> , <br />. ... . <br /> .~~ I.OE.ol' <br /> 'K .~~ <br /> 'H_ .~~ <br /> " .ro .- .- .- " .- .- <br /> __.toUI""'} ."'nn__t <br /> . <br /> <br /> <br />Flood <br />Peak <br /> <br />~ <br /> <br />.00 <br /> <br />,.. <br /> <br />". <br /> <br />'0' ,0" '0' <br /> <br />Annual E..eeedance Probability (1 in Yj <br /> <br />. <br /> <br />Rory Nathan, Sinclair Knight Men <br /> <br /> <br />i <br />, <br />I <br />.. I <br /> <br />. If regional design rainfalls not available. use <br />shape factor approach from 1987 edition of ARR: <br />. 'tafUnlll point ollnterplot,Uon Is 1:100 <br />. Iog-Normal dweklpment apae. <br />. Int.rpolatlon UMS shape lactors Ie ....bJ-etw. Ik.k:lllng <br />. htghlyc:onMMltlYe <br />. Else, use parabolic function fined In logarithmic <br />domain: <br />. startlng point 01 InlerpolllUorlI, ~lbl.llmll <br />. Iogo-Iog ctenlopmentlpace <br />. IIll.rpobIlIon baRd on 2 ~rarrw~r p;lrabollc function <br />. obIKllw, not coM~Un <br /> <br />. <br /> <br />6 <br />