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7/13/2011
1
1INSPIRE Conference 2011 – Edinburgh, June 30
The GMES Space Component Data Access System:
harmonizing Earth Observation products
flows and services
for the GMES
A. Tassa1, J. Martin1, R. Knowelden2, M. Nota3, G. Vingione4
1European Space Agency (ESA), ESRIN, Frascati, Italy2 ASTRIUM UK, Portsmouth, UK
3 Telespazio, Rome, Italy4SERCO SpA, Frascati, Italy
2INSPIRE Conference 2011 – Edinburgh, June 30
Introduction Project background
Data sources and users heterogeneity
GSCDA harmonization approach
GSCDA Functionalities
GSCDA Operational Scenarios
GSCDA Interfaces
GSCDA interoperable standards and protocols
Metadata for spatial DataSets
Catalogue
Order and User Management
Web Map Service
Project status and follow-on
DEMO web map service
Outline of presentation
7/13/2011
2
3INSPIRE Conference 2011 – Edinburgh, June 30
GMES Space Component Context
4INSPIRE Conference 2011 – Edinburgh, June 30
Marine
Core ServiceSecurity
Core Service
Atmosphere
Core Service
�Multi-temporal mosaics
�Systematic environmental
monitoring
�Alert systems
�Ship detection
�Oil Spills
�Geology and Hydrology
�Urban Atlas
�European coverage
�Hot spot monitoring
�Forestry
� Agriculture
�Urban sprawl
� Soil erosion
�Desertification
�Damage Assessment
�Disaster monitoring (i.e.
floods)
�Cartographic service
�Man-made emergency
situations
GSCDA users and applications (EC FP7)
�Nuclear and Treaties
Monitoring
�Natural resources and
conflicts
�Migration and Border
Monitoring
�Critical Assets
Marine Land Emergency Security Atmosphere
�Air Quality
�Global Atmospheric
Composition
�Climate
Land
Monitoring
Core Service
Emergency
Response
Core Service
AQUAMAR ASIMUTH BIO_SOS
CARBONESCoBios
CRYOLAND DOLPHIN DORIS EUFODOS
EURO4M
EVOSS FIELD_AC FRESHMON GARNET-E GEO-PICTURES GLOWASIS
ISAC
MALAREO
MS.MONINA MYWATER NEREIDS PASODOBLE REDDAF REDD-FLAME
SEAU
SIDARUS
SIRIUS
SubCoast
See GSCDA users on http://gmesdata.esa.int
7/13/2011
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5INSPIRE Conference 2011 – Edinburgh, June 30
Radarsat 1-2
Envisat
Rapideye
SPOT5
IRS
Landsat
ALOS
Cosmo-SkyMed
Ikonos
Geo-Eye
TerraSar-X
DMC
Deimos-1
QuickBird
EROS
ERS
Spot Vegetation
Global Systematic
Productions
Commercial
scene ordering
Value added
products
Eumetsat Missions
GMES Contributing Missions heterogeneity
Emergency
data provision
�Systematic EO products
productions
� Systematic EO products
delivery to the users
�Maritime surveillance
�Delivery Statistics Reporting
�On-demand rush
satellite tasking
�Rush ordering from
archive
�Full reporting
� On-demand EO products ordering
�Geographic Areas Coverages
standing production and delivery
�On-demand Map gaps filling
�Full Reporting
�DataSets Quality Control
� Orthorectified EO
Products
�Full reporting
�Multi-temporal
composites
See GSCDA providers on http://gmesdata.esa.int
6INSPIRE Conference 2011 – Edinburgh, June 30
ERS
Self Described
Containers Formats
EO Products:
Image Standard FormatsEO Products Format
�XML
�HDF4-5
�netCDF
�SHAPE
�NITF
�NSIF
�SAFE
�JPEG
�JGW
�PNG
�BMP
�GIF
�PNM
�JPEG2000
�TIFF
�GeoTIFF
�TFW
�CEOS Superstructure
�Generic EOSAT Fast Format
�Earth Explorer File Format
�DIMAP
Radarsat 1-2
Envisat
Rapideye
SPOT5
IRS
Landsat
ALOS
Cosmo-SkyMed
Ikonos
Geo-Eye
TerraSar-X
DMC
Deimos-1
QuickBird
EROSSpot Vegetation
Eumetsat Missions
GCMs Heterogeneous Products Formats
7/13/2011
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7INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA data sources and users heterogeneity
…taking into account the need to:
• Rely on GCMs existing infrastructures
• Avoid unnecessary duplications
• Avoid disruption of existing operational interfaces
• Minimize impact on GCMs
How to handle all this diversity?
8INSPIRE Conference 2011 – Edinburgh, June 30
Introduction Project background
Data sources heterogeneity
GSCDA harmonization approach
GSCDA Functionalities
GSCDA Operational Scenarios
GSCDA Interfaces
GSCDA interoperable standards and protocols
Metadata for spatial DataSets
Catalogue
Order and User Management
Web Map Service
Project status and follow-on
DEMO web map service
Outline of presentation
7/13/2011
5
9INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA Harmonization Approach
Develop a Coordinated Data Access System (CDS) in charge
of leveling diversity as needed for delivering services to
the users
AND
Define:
• CDS vs. GCMs functionalities
• CDS vs. GCMs operational scenarios
• CDS �������� GCMs interfaces and protocols
GSCDA system is a distributed system that provides predefined services relying on GCMs
and CDS according to pre-defined scenarios and interfaces
10INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA functionalities
7/13/2011
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11INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA operational scenarios
14 GSCDA Operational Scenarios
• DataSet production
mechanism?
• Products flows from GCMs
to CDS to users?
• Archiving strategy?…with every scenario characterized by specific interfaces and protocols
12INSPIRE Conference 2011 – Edinburgh, June 30
• Products packaging metadata
• Reporting Metadata
• Quality Control
• Satellite tasking metadata
• Catalogue (OGC 06-131)
• Ordering from Catalogue (OGC 06-141)
• User Management (OGC 07-118)
• Programming (OGC 07-018)
• Web Map Services
Interoperable (M2M)
interfaces
GSCDA (internal) interfaces and protocols
Semi-automated interfaces
Operators
interfaces
• Advertisement
• Orbit information
• Mission unavailability
• Tasking requests
• Help Desk
ESA contributes to
OGC via HMA
Working Group
7/13/2011
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13INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA operational scenarios and corresponding interfaces and protocols are described
in a complete documentation package for GCMs available to all space missions
contributing to GSCDA
(soon available on http://gmesdata.esa.int)
GSCDA interfaces and protocols for GCMs
14INSPIRE Conference 2011 – Edinburgh, June 30
Introduction Project background
Data sources heterogeneity
GSCDA harmonization approach
GSCDA Functionalities
GSCDA Operational Scenarios
GSCDA Interfaces
GSCDA interoperable standards and protocols
Metadata for spatial DataSets
Catalogue
Order and User Management
Web Map Service
Project status and follow-on
DEMO web map service
Outline of presentation
7/13/2011
8
15INSPIRE Conference 2011 – Edinburgh, June 30
Metadata for Datasets
• Currently all GSCDA datasets are described by ISO19115 compliant metadata
• The metadata is used by the Advertising Function, which publishes descriptions of datasets to users and how they are made available
E.g. Description of dataset DAP_MG2_13 (Volcanoes
Europe/RoW HR Opt) at: http://gmesdata.esa.int/web/gsc/
E.g. Description of dataset DAP_MG2_13 (Volcanoes
Europe/RoW HR Opt) at: http://gmesdata.esa.int/web/gsc/
GS
CD
A A
DV
Fu
nct
ion
GS
CD
A A
DV
Fu
nct
ion
GSCDA standards and protocols #1:
publishing DataSets Metadata
INSPIRE Equivalence: “Metadata for Spatial
DataSets”
16INSPIRE Conference 2011 – Edinburgh, June 30
• The GSCDA-HMA Catalogue is based on the ebRIMProfile (OGC 07-110r2) of the OGC Catalogue Services for the WEB (OGC 07-006r1 )
• The native GML Earth Observation Product Metadatadefined in OGC 06-080r4 are mapped in the ebRimstructure for data discovery as defined in the (OGC 06-131r6)
• Protocol based on http – SOAP 1.1
GSCDA standards and protocols #2:
HMA Catalogue
INSPIRE Equivalence: “Discovery service”
7/13/2011
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17INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA standards and protocols #3:
Order and User Management
• Order Services (OGC 06-141)
• Prioritised for ordering reference data from archive for emergency scenarios
• Allows specification of ordered items, order options and order feedback
• For suppliers supporting on-line download (e.g. CDS Core Infrastructure), direct products download available
• Supporting standards
• SOAP, SWE
• User Management (OGC 07-118)
• Required I/F for user clients authentication/authorisation
• Optional I/F for contributing missions
• Required for re-use of I/F in multiple use-cases.
• Integrated with WEB Single-Sign-On
• Supporting standards• OASIS SAML 1.1, WS-Security 1.1, WS-Trust 1.3, WS-Security
UsernameToken Profile 1.1
• W3C SOAP 1.2 (and 1.1), XML Encryption / XML Signature
• Non-intrusive and applicable to other service specifications where necessary
OrderOrder
Authorise
Authorise
Authenticate
Authenticate
INSPIRE Equivalence: “Invoke & Download Services”
18INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA standards and protocols #4:
Web Map Service
• EO Profile for WMS (OGC 07-063)• Profile that allows individual products from
large collections of data to be displayed as WMS layers
• Provision of “reduced resolution” browse without any data policy issue
• Provision of “full resolution” imagery depending on license
INSPIRE Equivalence: “View Services”
Still pilot: watch Live Demo!
7/13/2011
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19INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA interoperable interface with external users
Guidelines for M2M integration activities with users being defined
User clients
HMA Catalogue and Order
INSPIRE Equivalence: “Discovery, Invoke and Download”
GSCDA clients
20INSPIRE Conference 2011 – Edinburgh, June 30
Introduction Project background
Data sources heterogeneity
GSCDA harmonization approach
GSCDA Functionalities
GSCDA Operational Scenarios
GSCDA Interfaces
GSCDA interoperable standards and protocols
Metadata for spatial DataSets
Catalogue
Order and User Management
Web Map Service
Project status and follow-on
DEMO web map service
Outline of presentation
7/13/2011
11
21INSPIRE Conference 2011 – Edinburgh, June 30
GSCDA Development Project Status
GSCDA infrastructure V1: in operations
� Focus on: automated products circulation, archiving and dissemination
• CDS V1.4
• GCMs IFs V1 (10 G/S integrated)
GSCDA infrastructure V2: on-going
� Focus on: HMA interfaces, streamlined ordering interfaces and automated collection discovery
– CDS V2.0 soon to be deployed
– GCMs IFs V2 interfaces progressively integrated as available
22
GSCDA extended concept: EC DataWareHouse
• Participants to a project financed under FP7 [FP7_Proj]
• Institutions and bodies of the EU [EU_Inst]
• Public authority [Public_Auth]
• International Organisations and NGOs [INT_ORG_NGO]
• Public [Public]
Extended USER CATEGORIES
• DISCOVERY Service:Spatial data services making it possible to search for spatial datasets and services on the basis of the content
of the corresponding metadata and to display the content of the metadata.
• VIEW ServiceThe VIEW service shall make possible, as a minimum, to display, navigate, zoom in/out, pan, or overlay
viewable spatial data sets and to display legend information and any relevant content of metadata
• DOWNLOAD Service:The DOWNLOAD service shall allow the beneficiary:
(1) to make an unlimited number of copies of the Primary Product as needed (archiving and backup purposes
included);
(2) to install on as many individual computers as needed, including internal computer network;
….<omissis>…
Extended USAGE TYPES
(SERVICES)
7/13/2011
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Outlook to the future
GSCDA infrastructure V3: under definition
� Focus on: extended needs from DWH (e.g. VIEW service and enhanced users community) +
continuity/evolution of services after Sentinels integration
– CDS V3.0 (under definition)
– GCMs IFs V3 (to be defined)
– Sentinels PDGS IFs under development
2013, 2014+
Sentinel 1 – SAR imagingAll weather, day/night applications, interferometry
2013, 2015+
Sentinel 2 – Multispectral imagingLand applications: urban, forest, agriculture,..Continuity of Landsat, SPOT
2013, 2015+
Sentinel 3 – Ocean and global land monitoringWide-swath ocean colour, vegetation, sea/land surface temperature, altimetry
24
Live demonstration of pilot
Web Map Service