简介:TransportandplanningisuesoftheParisRegion:aquestionofsustainabilityWONGTai-CheDivisionofGeographyNanyangTechnologicalUnivers...
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简介:EDSSisacomprehensivesoftwaresystemforwaterqualitymanagementintidalrivernetworksingeneralandforthePearlRiverDeltainparticular.Itspurposeistoprovideapracticaltoolthatcouldassistgovernmentagenciesindecisionmakingfortheefficientmanagementofwaterresourcesintermsofbothquantityandquality.Bycombiningthecapabilitiesofgeographicalinformationsystem(GIS),databasemanagementsystem(DBMS),modelbasemanagementsystem(MBMS)andexpertsystem,theaimistoimprovethequalityofdecisionmakinginwhatisbecominganincreasinglycomplexarea.ThispaperfirstoutlinesthebasicconceptsandphilosophyadoptedindevelopingEDSS,thesystemarchitecture,designfeatures,implementationtechniquesandfacilitiesprovided.Thereafter,thecorepartofthesystemthehydrodynamicandwaterqualitymodelsaredescribedbriefly.ThefinalcontributioninthispaperdescribestheapplicationofEDSStothePearlRiverDelta,whichhasthemostcomplicatedtidalrivernetworkpatternsaswellasthefastesteconomicdevelopmentintheworld.Examplesaregivenofthereal-worldproblemsthatcanbeaddressedusingthesystem,includingcross-boundarywaterpollutionanalysis,regionaldrinkingwatertake-upsiteselection,screeningofimportantpolluters,environmentalimpactassessment,andwaterqualityzoningandplanning.ItisillustratedthatEDSScanprovideefficientandscientificanalyticaltoolsforplanninganddecision-makingpurposesintheinformationera.
简介:I.InternationalRiversandtheLancangMekongRiverInternationalriversaredefinedastheriverswhichflowacrostwoortwomorecountries.Upt...