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Roaenbrock, E.S. 1960. An aut eatlc D€thod or lca3t value of A functton. Cot@, .1., of fLndlng the greatest Stoneh.e, S.M. & Xldd, C.H.R. 1977. pledtctlon of runoff volume ftod fully sersretl utban catchDents, hstltute of gldrology Report No, 41. U.S. ArEy Colps of E.glDeers. ltethod of flood-louting. Report on Su:.vey of !'Iood Cont!o], ConnectLcut Rlve! Valtey, 193G. Van alen Berg, it.A., de Jong, J. ! SchuLtz, E. l9??. SoDe quatltatlve and quantltativo asp€cts of suEfacc wat€! in an urban alca $ltn separate atolD reater and waste fater systebs. proc. of slrnpostu! oi! the effects of urbanLsatLon anal lDdustllatLsation on t'he hydrologlcal EeglD€ and on water quality. An6!6ralae, ANS-IAES Publ,lcatlon No. 123. Van den Be!g, ,1.A, 1976, Data analysl3 aDd syst€D Dodelllng {n urban catcllhent area6 (In the nen to{!t of !€Iystaal, the ltetherlanttsJ. EAd, Sc, Bul.L, xxr, (l), 187-I94. Van den Berg, J.A, l9?8. Qulck and slon response to i.lnfall by an urban area. P!oc. of the Int€lDatlonal Confelence on Storn Dralnage, south.Dpton, U.K., AprII 1978. velssnan, ti. 1966. rhe hydlology of suall Ldpervlous area6, tr4r, ReBoura. Res. 2. watklns, L.B. 1962. The deelgn of urban se*€t syateos. EISO, Roaal Regearch Laboratory Technlcal Paper l!o. 55. tfatt, 91.8, & Kidd, c.E.R. 1975. qwRx - a r€allatic urban runoff Eoalel. d. duaPoL. zt. I I I I I I I I I I I I I I I
I T I I I I t I I I I I I I I I I I I I APPENDIX A : TIIE DATA BASE the task ol nodel butldlng can often be slopl1fled lf the analyst ls relieved of th€ lesponribllity of il,ata nanageDent. Sclentlflc analysls of th€ data can then ploceed vithou! the need to organise lhe input data lnto the folD requiled for each partlcular process. Accoldlngly, a $oall data base was set up, and the data froo the catcluents unde! conslderatlon lrere Loaded into 1t Prlor to analysis. Data coul"d then b€ retrleved 1n a gtandald fo:at! by reference to a slngle llblaly subroutlne. In aalditlon, a alata base access package (DAPPE) uas lDpleD€nted, ithlch p€lfolDed all th€ routine functions, such as loading and f.isting the data, and genelal housekeePlng. 1. TTIB DATA BASE llhe data base is used to hold the rainfall/runoff data, together ,ith lnfornation on catchDent chalacteli3tics, It consists of a set of randoD access flles, and uses a systen of rpolntersr for optlDurn effj.clency. fhere ale three types of record on the alata base, nadely calctrDent records, rainf,all and runoff recolcls, and Parameter recolals. Ihe catchnent recofds, which ate used as a dilectofy. are stored in ascendlng order of catchrnent number. and are accessed blt a blnary search algolithD, The contents of each tyPe of record ale as follovrs. L.! Catc"nent reco"d CalctEent nrDb€r l lnteger CatclEent nane - Tolal area of catchDent (o') - Paveal area lrlthin catchnent (r0') 36 alphanulellc I reat vdlua I real valtre characters Nunb€r of events for catcturent I integer Tir0e intewal between guccessive I lnteger observations (seconds) (norDalIy 60 seconds) L.2 !@fu!!-gg_!WIf:e99!49 (these have the same fom) Event nr,nber I inteqer start time (ln fofiD hh.m) I real value Dlte of event {In forn ddDDyy) I lnteger Duratlon of event (in Dinutes) I lnteger calchnent netness 4 a!.phanunerlc characters Nunber of values I lntege! Rainfatl/lunoff observatlons Up to 2oo real values I.3 Pa|arnetet tecotdg (a pa:.anete! record ls used to hold inforDation on segmenls lrlthln a partlcular catctuEnt, A oaxiBu! of LO segnents ale allowed). NuDber of, seg'nents I lnteger il
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