focus groundwater scenarios福克斯地下水的情况

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1、Version:1.0Date:25March,2001PRZM-ParameterisationfortheFOCUSGroundwaterScenariosAboutthisdocumentThereportonwhichthisdocumentisbasedisthatoftheFOCUSGroundwaterScenariosworkgroup,whichisanofficialguidancedocumentinthecontextof91/414/EEC[fullcitationisFOCUS(2000)“FOCUSgroundwaterscenariosint

2、heEUreviewofactivesubstances”ReportoftheFOCUSGroundwaterScenariosWorkgroup,ECDocumentReferenceSANCO/321/2000rev.2,202pp].ThisdocumentdoesnotreplacetheofficialFOCUSreport.However,aneedwasidentifiedtomaintaintheparameterisationofthemodelsfortheFOCUSgroundwaterscenariosinanup-to-dateversionco

3、ntrolleddocument,aschangesbecomenecessary.Thatisthepurposeofthisdocument.16SummaryofchangesmadesincetheofficialFOCUSGroundwaterScenariosReport(SANCO/321/2000rev.2).NewinVersion1.0Togetherwiththe“FOCUSPRZMGroundWaterToolversion2.2.1(February2001)”anewversionofthePRZMsimulationmodel(version3

4、.21beta,FOCUSrelease,February2001)hasbeenissued.Necessarychangestokeeptheparameterisationdocumentup-to-datewiththemodelareincorporatedinthisnewversioncontrolleddocument.Theonlyotherchangesinthisversioncomparedwiththeoriginalreportareeditorialones161SummaryPRZMisaonedimensionalfinite-differ

5、encemodelforpredictionoftheverticalmovementofchemicalsinsoilbychromatographicleaching.Thefirstofficialversion(Carseletal.,1984)wasreleasedin1984althoughbetaversionswereavailablefrom1982.AnupgradedversionPRZM2wasissuedaspartoftheRUSTICpackage(Deanetal.,1989a&1989b)andlaterasastand-alonemode

6、l.Inthemid-1990’stherunoffroutineswereupgradedaspartoftheworkoftheFIFRAExposureModellingWorkGroupandtheFIFRAEnvironmentalModelValidationTaskForcetoproduceversion3.12.Thisversionalsoincludedmoreflexibilitywithapplicationtechniques,theabilitytomakedegradationafunctionofsoiltemperature,andout

7、putwhichismoreuserfriendly.Version3.12isalsotheversionthathasbeenusedbytheFIFRAEnvironmentalModelValidationTaskForceinitsprogramtocomparemodelpredictionswithactualdatafromrunoffandleachingfieldstudies.ForuseintheFOCUSscenarios,version3.21wasdeveloped,whichinad