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CENTRE FOR COASTAL & MARINE SCIENCES
ContentsContents
• Project backgroundProject background
• Our solutionOur solution
• DemonstrationDemonstration
• ConclusionsConclusions
Land-Ocean Interaction Land-Ocean Interaction StudyStudy• 6 year UK project6 year UK project
• 11 government research institutes 11 government research institutes and 27 Universities - 300 staffand 27 Universities - 300 staff
• Study and modelling of fluxes from Study and modelling of fluxes from river catchment, through estuaries to river catchment, through estuaries to the continental shelf edgethe continental shelf edge
• Large fieldwork component - cruises, Large fieldwork component - cruises, moorings, river stations, remote moorings, river stations, remote sensing etc.sensing etc.
• Modelling, catchments, ecosystems Modelling, catchments, ecosystems etcetc
LOIS Overview CDROMLOIS Overview CDROM
Two relevant LOIS objectives:• Data integration through GISData integration through GIS
– different environmental mediadifferent environmental media
– different disciplinesdifferent disciplines
– different projections, datumsdifferent projections, datums
– different unitsdifferent units
– different visualizationdifferent visualization
• Data published to user communityData published to user community
– government agenciesgovernment agencies
– higher educationhigher education
– schoolsschools
Limitations of traditional GIS Limitations of traditional GIS softwaresoftware
• 2D in nature - ideal for studying static features2D in nature - ideal for studying static features
• Concurrent data access, integrity, securityConcurrent data access, integrity, security
• The world is a dynamic environmentThe world is a dynamic environment
– geological features - millions of yearsgeological features - millions of years
– land cover - annuallyland cover - annually
– water and atmosphere - sub secondwater and atmosphere - sub second
• Many attributes vary with height or depthMany attributes vary with height or depth
Generic Systems Generic Systems Development - RequirementsDevelopment - Requirements
What do most environment systems have in What do most environment systems have in common?common?
• User InterfaceUser Interface– Geographical front endGeographical front end– MappingMapping– AnalysisAnalysis– ReportingReporting
• Data StorageData Storage– AccessibilityAccessibility– Data securityData security
• Data Import and ExportData Import and Export– Simple to use data transfer formatsSimple to use data transfer formats
Generic DatabasingGeneric Databasing
• What are we trying to achieve?What are we trying to achieve?– Generic storage of diverse data Generic storage of diverse data
types that may vary in both space types that may vary in both space and timeand time
– Ability to define new features and Ability to define new features and attributesattributes
– Facilitate integration and Facilitate integration and accessibilityaccessibility
Time
Features
Attributes
Time
Features
Attributes
Gauging Station (GSTN)
Time
Features
Attributes
Feature Name
Time
Features
Attributes
Time
Features
Attributes
Thames@
Kensington
The value in the cell has a structured type of CHARACTER
Time
Features
Attributes
Gauging Station (GSTN)
Time
Features
Attributes
Feature Name
Time
Features
Attributes
Time
Features
Attributes
The value in the cell has a structured type of POINT(x,y,z)
51770 : 56980
Time
FeaturesAttributes
Suspended Particulate Matter
CASI Image (Compact Airborne Spectrographic Image)
Time
FeaturesAttributes
The value in the cell has a structured type of BINARY
Spatio-temporal Spatio-temporal Environment MapperEnvironment Mapper
• GISGIS
• 3D space3D space
• TimeTime
• N attributesN attributes
Zoom
Reprojection
Ancillary data
Query WizardQuery Wizard
Query WizardQuery Wizard
Query WizardQuery Wizard
Query WizardQuery Wizard
Comparison of attributesComparison of attributes
Attribute versus attributeAttribute versus attribute
Depth
Time
Time bar
Depth bar
Time and depth barsTime and depth bars
=100,000 traditional layers
(200 times x 100 depths x 5 attributes)
Time Accessibility
Comparison to traditional GISComparison to traditional GIS
ConclusionsConclusions
• Development of a 4D GISDevelopment of a 4D GIS– generic database, access, visualizationgeneric database, access, visualization
• Product DeliveredProduct Delivered– LOIS Overview CDLOIS Overview CD
– Micro Low FlowsMicro Low Flows
– Humber Tidal DatabaseHumber Tidal Database
– Emphasys projectEmphasys project
• Future development/funding ?Future development/funding ?