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Groundwater Vistas是一款→先进的三维地下水流和溶质传输模型研究、校正和优化利用MODFLOW编码软件，Groundwater Vistas新版本提供了理想的地下水远景地下水风险评估工具。英格兰和威尔士的环境机构所使用的建模软件就是Groundwater Vista,已成为世界领先的解决pre & post的模拟软件。
GroundwaterVistasisastateoftheartsoftwarepackagefor3Dgroundwaterflowandcontaminanttransportmodeling,calibrationandoptimizationusingtheMODFLOWsuiteofcodes.TheadvancedversionofGroundwaterVistasprovidestheidealgroundwaterriskassessmenttool.GroundwaterVistasisthemodelingsoftwareofchoicefortheEnvironmentAgencyofEnglandandWalesandhasbecometheleadingMODFLOWpre&postprocessingsolutionworldwide
GroundwaterVistasmainfeatures
SupportsMODFLOW2005,MODFLOW2000,MT3DMSv.5,MT3D’99,MODPATH,PATH3D,MODFLOWT,andMODFLOW-SURFACT
Displaysbothplan&cross-sectionalviews
RunallsupportedmodelsfromwithinGV
SupportsPEST&UCODEmodel-independentcalibrationsoftware,includingnewfeaturesinPEST11
Automatedparametersensitivityanalysis
Imports-exportsdatafromArcView
ImportsexistingMODFLOW,GMS,VisualMODFLOW,ModelCad&Flowpathfiles
ImportsdatafromSURFER&ASCIIfiles
ExportresultstoSURFER,Slicer,DXF,BMP,WMF,EarthVision,EVS,Tecplot,&ASCIIfiles
OverlaymapsinDXF&SURFERBLNformats
Fullon-linecontext-sensitivehelp
WYSIWYGprintingwithprintpreview
NewModelsandImports
NewModelVersions.GV5willsupportPestVersion11,MT3DMSVersion5,MODFLOWSURFACTVersion3,MODFLOW2000V1.17,andthenewestversionofMODFLOWfromtheUSGScalledMODFLOW2005.
ImportNewMODFLOW2000Files:GroundwaterVistascannowimportexistingMODFLOW2000datasetsfortheSFR1,SFR2,HUF,ETS,DRT,andLAK3Packages.
UnsaturatedZoneFlow(UZF)Package.MODFLOW2005hasanewrunoff/recharge/etpackagethatincludestheeffectsofflowthroughtheunsaturatedzone.GV5fullysupportstheUZFPackage.
GMSandVisualMODFLOWImport.GVhasalwaysbeenabletoimportGMSandVMrunsbutusuallysomeeditsneededtobemadeoutsideofGVpriortotheimportofthesefiles.GV5nowsimplifiestheimportofGMSandVMsothatnoeditingisrequired.
AnalyticElementModels:GV5nowsupportsSPLITandwillsupportGFLOWinthefuture.Tofacilitatetheuseoftheseanalyticmodels,newpolygonandpolylineelementshavebeenadded,includingaslurrywallelement.ResultsoftheanalyticelementruncanbeusedindefiningboundaryconditionsforasubsequentMODFLOWrun.
GWMOptimizationModel.GV5continuestosupportSOMOS,MGO2003,BruteForce,andMODOFC.GWMisanewoptimizationmodelbasedonMODFLOW2000.
GroundwaterVistasandPEST
PilotPoints&PEST:PestVersion11comeswithGV5.ThepilotpointcalibrationtechniquesinPESTarerevolutionizinggroundwatermodelcalibration.GV5willaddmanynewwaysofadding,editing,andoptimizingpilotpoints.WehavealsomadetheuseofSingularValueDecomposition(SVD)mucheasiertoimplement.
PEST&Regularization:GV5supportstwotypesofregularization.TheoriginalmethodfromGV4waspreferredhomogeneity("smoothness")regularization.PreferredvalueregularizationhasbeenaddedtoVersion5.Inmanycasespreferredvalueregularizationismorerobustthanpreferredhomogeneity.
PEST&SVD:SingularValueDecomposition(SVD)isanewtechniquethatallowsestimationofmanyparameterswithfewersimulations.TheSVD-Assistprocess,
however,iscomplex.GV5simplifiesSVD-AssistPESTruns-yousimplyfollowasetofmenuitemsinsequencetogothroughtheSVDprocess.
ImprovedPESTErrorChecking:PilotpointrunswithregularizationandSVDarecomplex.GV5nowchecksforallofthecommonerrorsencounteredinthesetypesofcalibrationruns.
NewCharts,VisualizationandReportTools
NewCharts:WehavetotallyrewrittenthechartingcapabilitiesinGV5tomakeiteasierandmorecustomizable.Chartscanalsobeplacedonthenewlayoutviews.SurfaceProperty.Youwillbeabletocreatesurfacesfromtriangularnetworks,surfergridfiles,matrices(row-columnformat),andothersources.ThesesurfacescanthenbeusedinavarietyofwaysfromdefiningcustomizedaquiferpropertiestosupportfortheHUFPackageinMODFLOW2000.
NewLayoutView.Thelayoutviewwillshowyouwhatyourplotwilllooklikeonapieceofpaper,allowingyoutocustomizeheaders,footers,legends,etc.EachfigurewillshowupasatabalongtherightsideoftheGVwindow.Toseethefigure,simplyclickonthetab.Youcanalsoembedcharts,logos,andcustomgraphicsinthelayout.
ModelReports.Anumberofdetailedreportscanbewrittenforcalibration,massbalance,drycelllocations,etc.TherearealsocustomreportsinMicrosoftRTFformatwhereyoucanembedcodesthatareautomaticallyreplacedwithdescriptiveinformationaboutthemodel.
RunLogandNotes.GV5canautomaticallycreatearunlogeverytimeyourunyourmodel.ThisreportconformswithASTMstandardsandcanbecustomizedbytheuser.YoumayalsoassociateanexternaldocumentwithyourVistasdesigntorecordnotesandobservationsaboutyourmodelingeffort.
CustomContourLevels.Youmaynowdefinethespecificcontoursyouwantforeachdatatype(head,drawdown,concentration)
InterfaceImprovements
EasierBoundaryConditionEditing.Vistashasalwayshadtheabilitytoperformcomplexeditsofboundaryconditions.Nowthereareadditionaltoolsforquickeditingthatismoreintuitive.
CustomOutputControl.ThereismorecontroloverwhattosaveandwhenintheMODFLOWoutputcontrolfile,includinguseofthenewDDREFERENCEflaginMODFLOW2000/2005whichallowsdrawdowntobecomputedbasedonanytimestep
LakeSpreadsheets.DataentryfortheLakePackagehasbeensimplifiedsothatmostdatacanbeenteredonspreadsheets.
DrawingElements.YoumaynowdrawshapeswithinVistastoaugmentthedigitizedbasemaps.Youmayalsoimportbitmapssuchaschartsandpicturestooverlayonthemodeloronthelayouts.
ChangeBoundaryTypes.Boundaryconditionscannowbechangedfromonetypetoanother(e.g.changeconstantheadstorivers)onthefly.
NewAnalyticElements.Polylineandpolygonanalyticelementshavebeenaddedforusewithmostboundarytypes.
Editing&SelectingAnalyticElements.Therearemanynewwaysofselectinganalyticelementsforcopy/pasteanddelete.
NewandImprovedComputing
HugeTransientRuns.OnelimitationVistashashadinthepastiswithlargetransientmodels.TheproblemasbeentheamountofmemoryrequiredtostorealloftherechargeandETdataforeachstressperiod.Anewcachingschemenowallowsyoutostorethisdataondisk,makingitpossibletoworkonverylargetransientruns.
DistributedComputing:YoucannowcreateyourownsimplesupercomputerusingGroundwaterVistasESI’snewRemoteLaunchtechnologyallowsyoutorunmanymodelssimultaneouslywhenrunningAutomatedSensitivityAnalysisandMonteCarlosimulations.(RemoteLaunchpurchasedseparately)
