Post on 07-Jul-2015
description
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EMODnet
(European Marine Observation and Data Network)
HSB presentatie 29 oktober 2010
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HSB presentation 29 oktober 2010
Agenda
Background / Problem definitionObjectivesStandardsCoverageEMODNET Hydrographic portalData aspectsQuestions
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HSB presentation 29 oktober 2010
Background
Initiated by the EU's Maritime Policy Blue Book
The behavior of seas and oceans is crucial to human life on this planetThe marine life influences the provision of foodChanges in coastal morphology influence erosion, flooding and maritime transportOcean circulation is a primary, if poorly-understood, influence on the terrestrial climate
Since the industrial revolution there is an ever growing interdependence between the human and marine domainsThe impact of future changes in oceanic systems, their impact on human activity and the feedbacks on the ocean cannot be forecast without understanding the way the system works
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HSB presentation 29 oktober 2010
Problem definition
High demand for maritime data
Available data is at a national level
Available data is domain specific
Single purpose data collection driven by a specific regulation (e.g. safe navigation)
Data is of uncertain quality
Difficult to create a coherent “picture”
Regulation do not apply to private institutes and research facilities
Cost
Lack of specific standardisation
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HSB presentation 29 oktober 2010
Objectives
Define the appropriate processes, develop the best technology and estimate the costs of a final operational European Marine Observation and Data Network
Provide first components of a final system
Assemble fragmented and inaccessible marine data into interoperable, contiguous and publicly available data streams for complete maritime basins.
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HSB presentation 29 oktober 2010
Objectives (improve and enhance)
Discovery of Data
Access to data
Use of data
Cost of data
Coherence of Data
Quality of Data.
Quantity of Data
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HSB presentation 29 oktober 2010
Standards
INSPIRE
OGC
SeaDataNet
Technology
SENSSpatial Enterprise Nautical Solutions
AGWSATLIS Geo Web Server
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HSB presentation 29 oktober 2010
Coverage
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HSB presentation 29 oktober 2010
Data - layers
World map
Coastline
Underwater features
DTM (Continuoussurface)
Surveys (demo)
Source Storage Format
WMSExternal
Surveys
Layers
External
External
External
External
External
Internal Internal
External
External Internal
data meta data
Internal
Internal
Internal Internal
Internal
Internal
DTM (GEBCO)
DTM (Regions)
Atlantic Ocean Mediterranean North sea
IsobathsInternal Internal
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HSB presentation 29 oktober 2010
Hydrographic Portal – URL
http://portal.emodnet-hydrography.eu
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HSB presentation 29 oktober 2010
Hydrographic Portal – user interface
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HSB presentation 29 oktober 2010
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HSB presentation 29 oktober 2010
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HSB presentation 29 oktober 2010
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HSB presentation 29 oktober 2010
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HSB presentation 29 oktober 2010
Data content of EMODNET project
Hydrography lot
Water depth in gridded form (500 m grid)
Water depth in vector form with isobaths at a scale of at least one to one million.
Coastlines
Underwater features
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HSB presentation 29 oktober 2010
Data aspects
Two data coordinators
ATLIS
IFREMER
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HSB presentation 29 oktober 2010
EMODNET northCoordinated by ATLISParticipating data providers:
Netherlands HOBelgium HOFrench HOGerman HODanish Survey DepartmentNorwegian HONational Oceanographic Centre UKIrish Geological ServiceGEBCO
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HSB presentation 29 oktober 2010
EMODNET southCoordinated by IFREMERParticipating data providers:
IFREMERSpanish Geological ServiceItalian Geological ServiceGEBCO
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HSB presentation 29 oktober 2010
Netherlands HO
Level 5 RBB gridded data for most parts of continental shelf areaCharted depths for northern partMeta data and survey areas (stukkenkaart)Data format ASCII xyzLat long format WGS84LAT depths positive down3.048.958 depths from RBB465 depths for charted depth areaENC data delivered (usage 3 and 2)
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HSB presentation 29 oktober 2010
Belgium HO
500 meter gridded ASCII dataSource both BE,NL and UK (UK for northern part)No metadataData format ASCII xyzUTM zone 31LAT depths positive downNo ENC data20803 depths
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HSB presentation 29 oktober 2010
Irish Geological Service
0.00417 degree gridded dataESRI ASCII grid3.566.086 depthsUnprojected WGS 84 MSL depths negative downNo complete coverage of Irish shelfResolution was slightly off with EMODNET specsNo ENC dataNo metadata
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HSB presentation 29 oktober 2010
German HO
500 x 500 meter gridIncomplete coverage1.346.323 depthsUnprojected Lat/lon WGS84LAT depths positive downNo ENC dataNo metadata
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HSB presentation 29 oktober 2010
French HO
ASCII point data4.780.886 depths Unprojected Lat/lon WGS84LAT depths positive downIncluding metadata
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HSB presentation 29 oktober 2010
NOCS UK
ESRI ASCII grid for own data5.810.477 depths Unprojected Lat/lon WGS84LAT depths positive downNo metadataEMODNET grid data for combined GEBCO/NOCS data setNO UK HO data used
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HSB presentation 29 oktober 2010
Denmark (Survey Department)
NetCDF gridded data50 x 50 meter grid resampledDifferent source dataLed line to MultibeamUnprojected Lat/lon WGS84Meta data in ESRI project filesNo information about resampling method
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HSB presentation 29 oktober 2010
Norway HO
No complete DTM available yetAlternative sourceENC dataBathydata created based on:
ContoursSpotsoundingsCoastline
6.820.472 depth generated
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HSB presentation 29 oktober 2010
EMODNET grid format
1. Lat2. Lon3. Minimum depth4. Maximum depth5. Mean depth6. Standard deviation in grid7. Number of cells used to interpolate empty grid cells8. Number of depths used to calculate mean depth9. Smoothed depth10. Difference in % between smoothed depth and mean11. CDI record id for source12. DTM source other than GEBCO13. GEBCO indicator
ASCII format with .grd extention; delimitedColumns:
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HSB presentation 29 oktober 2010
GRID definition
Grid size: 0.00416667 degrees square
15 arc seconds
Approximate 500 x 500 meter
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HSB presentation 29 oktober 2010
GRID positioning
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HSB presentation 29 oktober 2010
Questions