1. www.seazone.com Building an Integrated Land-Sea Base Reference Map BLAST Work Package 3 Marisha Rust SeaZone Solutions 1

2. www.seazone.com Contents What are the building blocks for an Integrated Land-Sea Base Reference Map? Data & Metadata Data Management Model Vertical Reference Frame Software & Hardware Integrated Topographic Data Tools Integrated Elevation Data

3. www.seazone.com Data & Metadata Building Block: Data & Metadata

4. www.seazone.com Requirements Data register Metadata Marine and terrestrial data Core datasets Supplementary datasets Best scale coastal boundary line Data specifications and assessment criteria Building Block: Data & Metadata

5. www.seazone.com Data Register Building Block: Data & Metadata

6. www.seazone.com Metadata Discovery metadata Conforming to Inspire Implementing Rules for Metadata Encoded in accordance with ISO19139 Inspire Metadata Creator & documentation Stored in a GeoNetwork Building Block: Data & Metadata

7. www.seazone.com © Kort & Matrikelstyrelsen, Denmark,

8. www.seazone.com © Kort & Matrikelstyrelsen, Denmark,

9. www.seazone.com Marine reference data Base vector map Highest scale \ highest resolution Good spatial coverage Recognised data specification (e.g. S-57, S-100) Unencrypted data In Great Britain: Electronic Navigational Charts United Kingdom Hydrographic Office Captured to S-57 specification Building Block: Data & Metadata © Kort & Matrikelstyrelsen, Denmark,

10. www.seazone.com Marine reference data Best available scale (GB) Scale LevelNominal ScaleReal Scale Range Overview1: 500,000180,000 - 10,000,000 General 1: 200,00090,000 - 1,500,000 Coastal 1: 75,00045,000 - 500,000 Approach 1: 25,00012,000 - 100,100 Harbour 1: 10,0002,500 - 25,100 Berthing 1: 5,0004,000 - 12,000 Building Block: Data & Metadata © British Crown Copyright, 2005. All rights reserved© SeaZone Solutions Limited, 2005

11. www.seazone.com Terrestrial reference data Base vector map Highest scale \ highest resolution Good spatial coverage Recognised data specification In Great Britain Ordnance Survey MasterMap Topographic Layer Scale 1:1,250 Building Block: Data & Metadata © Kort & Matrikelstyrelsen, Denmark, SeaZone Developer Agreement, 2009

12. www.seazone.com Best scale coastline Boundary of separation between marine and land data Highest scale \ highest resolution Continuous polyline Known provenance / confidence Accuracy & precision Building Block: Data & Metadata MasterMap ENC Overview ENC General ENC Coastal ENC Approach ENC Harbour © British Crown Copyright, 2005. All rights reserved © SeaZone Solutions Limited, 2005

13. www.seazone.com Feature types linked to Inspire Spatial Data Themes => Development of an Inspire based Product Specification Building Block: Data & Metadata

14. www.seazone.com Elevation and bathymetry Geological – seabed sediments & bedrock Tidal elevations \ surfaces Infrastructure \ installations \ constructions \ obstructions National limits and administrative boundaries Licensed development and activity areas Oceanography and climatic data Conservation and environmental designations Key transport routes Core source datasets Building Block: Data & Metadata

15. www.seazone.com Supplementary source datasets Oceanography and climatic data Habitat maps & species distribution Fisheries activity and catch statistics Water quality & sampling points Shipping densities Tourist activity data Named sea areas Heritage and archeaological data Instrument and measurement locations Building Block: Data & Metadata

16. www.seazone.com Data assessment criteria Criteria Spatial data format / file format. Spatial and/or temporal data coverage extent Coordinate Reference System (vertical and horizontal) Data currency – Update frequency and method (Refresh/COU etc) Attribution – consistency, detail, definitions. Standards, encoding Data capture scale, precision and re-sampling scale (if applicable) Metadata and metadata compliance standards Spatial validation test (geometries) Data mapping and product mapping requirements Building Block: Data & Metadata © SeaZone Solutions Limited, 2005

17. www.seazone.com Data Management Model Building Block: Data Management Model

18. www.seazone.com Meted Simplified data management model Inputs Database Outputs Data Dictionaries Data Specifications Product Specification Data Storage Data Extraction Data Processing & Transformation Building Block: Data Management Model Meta Information © SeaZone Solutions Limited, 2005

19. www.seazone.com Wrecks data Data Dictionary Data Specification (mapping) Wrecks data holding (database) Product Specification Application schema (logical view & UML) Data in GML format Feature Catalogue Following wrecks data through the data model Building Block: Data Management Model

20. www.seazone.com Wreck categoryNon-dangerous wreck StateLive ClassificationUnclassified Position52.92667° N, 1.39653° E Horizontal DatumOrdnance Survey of Great Britain (1936) Position on WGS84 datum52.92717° N, 1.39470° E Origin of WGS84 positionBlock Shift Position qualityPrecisely known Position accuracy10.0 metres Depth10.4 metres Depth methodFound by echo-sounder Depth qualityLeast depth known General water depth12 metres Water level effectAlways under water/submerged Vertical datumLowest Astronomical Tide Length30.2 metres Orientation120.0° Surveying detailsHH090/5/43/01 10.2.92 WK EXAM’D…… SymbolChart symbol ‘WK 10.4’ (see Annex F) Date last amended10/02/1992 Example of incoming wrecks data © British Crown Copyright, 2005. All rights reserved

21. www.seazone.com Data mappings Source data attribution Data dictionary © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

22. www.seazone.com Product Specification Building Block: Data Management Model © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

23. www.seazone.com Logical view: Application Schema (UML Class Diagram) © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

24. www.seazone.com Physical view: GML Application Schema The ruined remains of a stranded or sunken vessel which has been rendered useless. (IHO Dictionary, S-32, 5th Edition, 6027) Building Block: Data Management Model © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

25. www.seazone.com Feature Instance 18-06-09Feature cataloguing workshop 637000001090986 637 WRECKS MARY ROSE 2003-07-15T00:00:00 2008-10-29T16:32:16 2008-09-12T00:00:00 50.76307 -1.10446 live TUDOR WARSHIP,60 GUN 1973 1993 SPH Y BUOY, FL Y 5 SEC, 'MARY ROSE' 50.76307 -1.10446 OGB 3DCartesianShiftBW ENGLISH 1545-07-20 **BUILT IN 1509 IN PORTSMOUTH AS 500BM. REBUILT IN 1536 AS 700BM. CAPSIZED WITH LOSS OF 665 MEN FROM CREW OF 700, WHEN IN LEADING THE ENGLISH FLEET AGAINST A FRENCH INVASION OF THE ISLE OF WIGHT. RELOCATED IN THE 1960S AND LIFTED 11.10.82 FOR PRESERVATION. (SIBI & SRN). Wrecks data: GML format © British Crown Copyright, 2005. All rights reserved

26. www.seazone.com Feature Catalogue © SeaZone Solutions Limited, 2005

27. www.seazone.com Vertical Reference Framework Building Block: Vertical Reference Framework

28. www.seazone.com Vertical Transformation – UK waters UKHO Vertical Offshore Reference Frame (VORF) Resolves various vertical CRS in and around UK, including: – Chart Datum to Mean Sea Level – Chart Datum to Ordnance Datum Newlyn Gridded transformations More complex calculations in estuaries Constrained by areas of validity Building Block: Vertical Reference Framework

29. www.seazone.com Vertical Reference Framework North Sea Unified height datum for Europe provided to the Blast project Offsets between the national height systems and this unified European datum are identified Mechanism to apply transformation parameters between the various height datums Output: Interpolation software and transformation grids Expansion to encompass more transformations Reference Tide Gauges of National Height Systems in Europe Building Block: Vertical Reference Framework

30. www.seazone.com Building an Integrated Land-Sea Topographic Layer Building Block: Topographic Layer

31. www.seazone.com Integrated topographic map creation Objective? A ‘seamless’ topographic dataset that creates a smooth transition between land and sea, in the coastal zone Resolves data inconsistencies, poor attribution and multiple feature representations Comprises: Best available scale data Best available geometry Best available attribution Building Block: Topographic Layer

32. www.seazone.com Edge matching features across boundaries Matching geometries from equivalent features across ENC boundaries Building Block: Topographic Layer © British Crown Copyright, 2005. All rights reserved

33. www.seazone.com Deconflicting features Assessment of equivalent feature overlaps between different scale bands. Keeping the ‘best available’ depiction and attribution from these overlapping features. Building Block: Topographic Layer Ordnance Survey Great Britain © Crown Copyright, 2006 © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

34. www.seazone.com Coastline association Selecting the ‘best available’ representation of the coastline from the available datasets. Building Block: Topographic Layer Ordnance Survey Great Britain © Crown Copyright, 2006 © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

35. www.seazone.com Marine base dataTerrestrial base data Integrated data Coastal feature improvement Resolving equivalent coastal features between the marine and terrestrial datasets (e.g. piers, slipways) along the marine/terrestrial boundary line. Building Block: Topographic Layer Ordnance Survey Great Britain © Crown Copyright, 2006 © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

36. www.seazone.com Validate terrestrial objects Coastline ‘Best Available’ Upload S-57 to Topo Model Marine Data Manual DECONFLICTION Bathymetry validation Manual EDGE MATCHING Automatic DECONFLICTION & EDGE-MATCHING FINAL PRODUCT Output (draft) Product Build Product Extraction QA Terrestrial Data Replicate Terrestrial objects Coastline Association Conflict Resolution Upload Terrestrial Data to Topo Model QA © SeaZone Solutions Limited, 2005

37. www.seazone.com ‘Seamless’ topographic dataset in the coastal zone Building Block: Topographic Layer Ordnance Survey Great Britain © Crown Copyright, 2006 © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

38. www.seazone.com Building an Integrated Land-Sea Digital Elevation Surface Building Block: Integrated Elevation Surface

39. www.seazone.com Integrated Land-Sea Digital Elevation Surface Objective? To integrate terrain and bathymetric models into a single, seamless surface Common coordinate reference system and vertical datum Requirements? High resolution bathymetric data High resolution terrestrial elevation data Horizontal datum transformation parameters Vertical datum transformation parameters Good spatial coverage – full coastal zone Fully deconflicted data Building Block: Integrated Elevation Surface

40. www.seazone.com Database schema Example of Bathymetry Database Schema Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

41. www.seazone.com Survey deconfliction - before Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

42. www.seazone.com Survey deconfliction - after Deconfliction decisions based on: Survey start \ end date Density of soundings Type of survey / instrumentation used Quality of survey Type of environment Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

43. www.seazone.com Project area: Cornwall Pilot Area: Cornwall, UK Ordnance Survey Great Britain © Crown Copyright, 2006

44. www.seazone.com HI1246 - LIZARD POINT TO LANDS END LEVEN Multibeam survey, 2-5m sounding density Survey end - 23/08/2008 Survey start - 10/06/2009 High density multi beam survey bathymetry data Low density single beam surveys 300m-400m across track Bathymetry data inputs Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

45. www.seazone.com Distance to high water line varies from 0m to 150m Bathymetry data inputs Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

46. www.seazone.com Bathymetry Surveys Deconflicted with 5m buffer between surveys Bathymetry data deconflicted & transformed to common vertical datum Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

47. www.seazone.com Comprises: Lidar data Captured: November 2009 Resolution: 2m Tile size: 5km x 5km Height accuracy (Root Mean Square Error): +/- 0.25 m or better Terrestrial data inputs Ordnance Survey Profile Plus data Building Block: Integrated Elevation Surface Ordnance Survey Great Britain © Crown Copyright, 2006

48. www.seazone.com OS Profile Plus model: Requirement to mask out Lidar data over water Terrestrial data masking Building Block: Integrated Elevation Surface Ordnance Survey Great Britain © Crown Copyright, 2006

49. www.seazone.com Extract Ordnance Survey Mastermap Mean High Water Line Drape MHWL vertices over Ordnance Survey Profile Plus Model and extract values from the model Digital bathymetry soundings from multibeam survey Marine / terrestrial data boundary line Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

50. www.seazone.com BathySIS software is used to triangulate between bathymetry soundings and Mean High Water Line vertices Modelling up to the boundary line Large flat triangles Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

51. www.seazone.com Digital bathymetry soundings from multibeam survey Alternative boundary line in development Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

52. www.seazone.com Joining the models Triangulation: Bathymetry data > boundary line > terrestrial data Terrestrial data grid cells (island) Terrestrial data grid cells (mainland) Mean High Water Line Bathymetry grid cells Building Block: Integrated Elevation Surface Bathymetry grid cells © SeaZone Solutions Limited, 2005

53. www.seazone.com Integrated digital elevation model Referenced to OSGB 1936, British National Grid Birdseye view: Cornwall, UK, Trewavas Head to St. Michael’s Mount Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

54. www.seazone.com The Greeb, looking southeast towards Cudden Point Including deconflicted survey extents Integrated digital elevation model Referenced to OSGB 1936, British National Grid Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

55. www.seazone.com Cornwall, UK, Cudden Point looking east Integrated digital elevation model Referenced to OSGB 1936, British National Grid Building Block: Integrated Elevation Surface © SeaZone Solutions Limited, 2005

56. www.seazone.com Building an Integrated Land-Sea Geology Layer Building Block: Integrated Geology Layer

57. www.seazone.com Integrated land-sea geology map 56°N 56°10’N 3°W Objective? To integrate geological data from the terrestrial and marine environments into a single, seamless dataset Requirements High resolution bathymetric data - backscatter > acoustic response > seabed texture Sediment cores and grab samples Base geological maps Good spatial coverage, terrestrial and marine, including intertidal zone Building Block: Integrated Geology Layer © NERC All rights reserved

58. www.seazone.com © NERC All rights reserved Building Block: Integrated Geology Layer

59. www.seazone.com © NERC All rights reserved Building Block: Integrated Geology Layer

60. www.seazone.com © NERC All rights reserved Building Block: Integrated Geology Layer Expert interpreted shear strength

61. www.seazone.com Integrated Land Sea Base Reference Map Layers

62. www.seazone.com 56°N 56°10’N 3°W Geological Layer © NERC All rights reserved

63. www.seazone.com Topographic Layer Ordnance Survey Great Britain © Crown Copyright, 2006 © SeaZone Solutions Limited, 2005 © British Crown Copyright, 2005. All rights reserved

64. www.seazone.com Elevation Layer © SeaZone Solutions Limited, 2005

65. www.seazone.com Geological + Topographic + Elevation Integrated Land-Sea Base Reference Map

66. www.seazone.com BLAST Work Package 3: summary of activities Activity – Data audit and metadata collation for North Sea region Lead by National Survey & Cadastre, Denmark Activity – Data collation and assessment for North Sea pilot areas Lead by SeaZone Solutions Activity – Vertical Reference Framework for North Sea Lead by DTU Space / National Space Institute Activity – Survey capture to support Blast deliverables Lead by Agency for Maritime & Coastal Services Activity – Prototype Land-Sea Interoperable Base Reference Map Lead by SeaZone Solutions

67. www.seazone.com To summarise… Pressure on the coastal and marine zones – to develop, yet also protect Important need for an integrated land-sea base reference map Comprehesive data model sets the underlying structure Vertical reference transformation parameters Investment in hardware and software Expertise in databases, data assessment and editing, data modelling, application developing and metadata creation Quality input => quality output!