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MEDIN

MARINE INFRASTRUCTURE PROJECT

Harmonisation, management and maintenance of marine infrastructure reference information

Marisha Rust

Ben Spalding

SeaZone Solutions Ltd


CONTENTS

• Project overview

Phase 1

Phase 2

Phase 3

• Technical overview and progress

• Timescales for completion of Phase 1

• Next stages – Phases 2 & 3


OVERVIEW: PHASE 1

• Identify all known sources of marine infrastructure

• Determine the desired common CRS

• Identify inconsistencies in data

• Create infrastructure database and mapping

• Metadata assessment

• Determine rules governing feature deconfliction

• Identify base reference attributes

• Conduct feature deconfliction for pilot site

OUTPUT => Phase 1 report and pilot area sample data

• MEDIN review


OVERVIEW: PHASE 2

Future expected programme of work:

• New data upload

• Attribute mappings

• Metadata creation

• Deconfliction of data

• Quality check of outputs

• Deliver output database of all feature types

• Phase 2 review of outputs

OUTPUT => One definitive marine infrastructure dataset sourced from multiple suppliers, with best available geometry and attributes


OVERVIEW: PHASE 3

• Review of project outputs for Phase 2 by nominated MEDIN representatives

• Agree Responsible Authority / Delegated Responsible Authority

• Establish long term data management and maintenance strategy

method and frequency of update

data delivery and formats

ratify various requirements of IPR holders in licensing data

• Develop delivery mechanism of harmonised data to MEDIN and other 3rd party parties

• Publicise!


PHASE 1 PROGRESS

• Identify and assess all known sources of marine infrastructure

Common Data Access Ltd (UKDEAL) / UKHO / S-57

Pipelines / surface and subsurface infrastructure / wells

Currency / attributes / coverage / scale / geometry / precision

• Dataset IPR assessment

Unknown in some cases

• Determine the output CRS

Geodetic WGS 1984

• Identify inconsistencies in data

Geometry

Attributes


PHASE 1 PROGRESS cont.• Metadata assessment

Gaps in metadata

Formats

Standards – MEDIN profile

• Create infrastructure database, conceptual mapping, tools

DB table structure (Oracle)

Plug-in tools – upload / dictionary / mapping

Conceptual mapping

• Identify base reference attributes

e.g. Installation => Category of Installation

• Determine rules governing feature deconfliction

Best available geometries

Best available attributesFor each dataset


PHASE 1 PROGRESS cont.

• Data processing

CRS transformation

Topologise data (links, nodes and seeds)

Add, re-populate and cleanse attributes

Import data to database (Oracle)

• Attribute mappings

Using SeaZone developed tools

Mapping of all features, attributes and attribute values into central data dictionary


PHASE 1 PROGRESS (pilot site)

• Deconfliction of features – pilot site

Removes all duplicate feature types

SeaZone developed plug-in tools

Topologised data (links, nodes and seeds)

Deconflict Seeds

- Keeps only the best available feature

Merge Seeds

- Merges attributes onto preferred geometry


Deconfliction of features

(using Deconflict Seeds tool)

BEFORE:Duplicate pipeline features from different sources

Deconflict

AFTER:Single best available geometry for pipeline feature

Land area

Land area


Deconfliction of features and attribution harmonisation

(using Merge Seeds tool)

BEFORE:Duplicate pipeline features from different sources with varying attributes

Merge

AFTER:Single best available geometry with best available attributes

Feature attribute harmonisation


PHASE 1:

• Following completion of pilot site deconfliction:

Quality checking of outputs

Geometries

Attributes

Metadata

• Deliver output database of GIS feature types

ESRI v9.1 PGD format

Supporting metadata and statistics


NEXT STAGES

Timescales:

Deconfliction of pilot area

Completion – by mid September 2010

Project report and pilot site data sample

Distributed – before end September 2010

Project partners review Phase 1 outputs

Mid September – Beginning October 2010

Project Partners review meeting – beginning of Oct 2010

Agreement on costs and timescales for Phase 2

Agree expected programme of work for Phase 2


MEDIN

MARINE INFRASTRUCTURE PROJECT

Harmonisation, management and maintenance of Marine Infrastructure data

Further information:

[email protected]

[email protected]

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