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CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May 17 - 21, 2010 GFZ Representative Report Bernd Ritschel, GFZ ISDC* Manager

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Presentation on theme: "CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May 17 - 21, 2010 GFZ Representative Report Bernd Ritschel, GFZ ISDC* Manager"— Presentation transcript:

1 CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 GFZ Representative Report Bernd Ritschel, GFZ ISDC* Manager The Electronic Geophysical Year *Information System and Data Center

2 CHAMP Satellite Project Partners: GFZ, DLR, NASA, CNES Lifetime: 04/2000 – 09/2010 Main objectives: –Global Earth gravity field (models) –Global Earth magnetic field (models) –Atmospheric/Ionospheric sounding (GPS occultations) –Monitoring surface heights (GPS altimetry experiment) CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 Double difference geometry of GPS limb sounding with CHAMP Combination Gravity Field Model EIGEN-CG01C (CHAMP-GRACE-TERR.) Magnitude of non-dipolar field

3 GRACE Satellite Project Partners: GFZ, DLR, NASA, CSR Lifetime: 03/2004 – 2014 Main objectives: –Global Earth gravity field (constant/time variable) –Occultation atmosphere/ ionosphere –Deep ocean current changes CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 GRACE Gravity Field Model Earth mass distributions

4 TerraSAR-X Satellite Project Partners: GFZ, DLR, Industry Lifetime: 07/2007 – 2012 Main objective: –X-band radar based SAR (Synthetic Aperture Radar) interferometry images CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 Source: ESA TerraSAR-x StripMap product, 30 x 55 kilometres, as an example of EEC projection. It shows the Upsala Glacier in Patagonia. The three SAR (Synthetic Aperture Radar) modes: Spotlight, Stripmap and ScanSAR.

5 Tandem-X Satellite Project Partners: GFZ, DLR, Industry Lifetime: 06/2010 – 2015 Main objectives –X-band radar based SAR (Synthetic Aperture Radar) interferometry images –Digital Earth elevation model (high accurate 12 x 12 x 2m) –Velocity measurements CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 This elevation model shows different accuracies: 1 kilometre, 90 metres, 30 metres and 12 metres (TanDEM-X). Source: ESA TanDEM-X and TerraSAR-X in formation flight

6 SWARM Satellit Project Partners: GFZ, ESA, DLR Status: Phase D Lifetime: 2012 – 2016 Main objectives: –Global Earth magnetic field (model) –3D Earth crust conductivity –Electric currents in ionosphere CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 Dynamics of the Earth generating the Gravity and Magnetic Field Swarm constellation of three satellites The Earth's magnetic field is mainly produced by a self-sustaining dynamo in the fluid outer-core

7 MicroGEM Satellite Project Partner: GFZ, TU Berlin, Industry Status: Phase A Lifetime: ? Main objectives: –Occultation atmosphere/ionosphere ([Space] Weather) –Topside ionosphere tomography –Reflectometry ocean/ice with GALILEO/GPS –POD with VLBI (for the first time) SLR and GNSS CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

8 Planned Satellite Projects GRACE “Filler” Mission –Partners: DLR, GFZ,... –Status: Phase 0 –Lifetime: 2015 – 2020 –Main Objective: Gravity field monitoring GRACE Follow-on –Partners: NASE, CSR Texas, GFZ –Status: Concept –Lifetime: 2020 – –Main Objective: Gravity field/water storage monitoring CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

9 Global Geodetic Project (GGP) IAG Inter-Commission Project IC-P3.1 Joint with Commission 2 - The Gravity Field, & Commission 3 - Earth Rotation and Geodynamics Research areas: Gravity field variations Environmental influences local/global Hydrology

10 GGP SG* Station Network *Superconducting Gravimeter 30 SG stations around the globe Basis for WDCC for Earth Tides

11 The 2007 International Geohazards Week, Frascati, Italy, 5-9 November 2007 GFZ ISDC* Portal Homepage: *Information System and Data Center GGP Superconducting Gravimeter Station Network

12 ISDC Data and Users 289 product types from different geoscience domains –113 product types for public use –4 product types with grants for science teams –180 internal product types 14,38 Terra Byte of data 23,65 Million products files/day data flow < 2390 national and international users and user groups 19 data provider (scientific groups) GFZ+Unis+JPL+UCAR CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

13 Georesearch Challenges and Semantic Relations Culture of scientific work Complex Systems exponential growing volume of data and information Research object producing 1 Technical driven concepts & metadata Science domain related concepts Workflows & vocabularies Semantic relations

14 Geoscience Objectives and Semantic Web Idea Modeling the world of geoscience knowledge generation Integration of multi-domain data and information for the research of complex geo-systems Discovery, retrieval, reuse and share of data, information and knowledge Combining and aligning of data and information using controlled vocabularies and inference based rules Putting the content of data and information in to the appropriate inner and outer context, incl. literature (DOI) Integration of user generated context information and knowledge using Web 2.0 technology Visualization of knowledge concepts and semantic relations

15 Requirements for Modeling and Detecting of Semantic Coherence Describe the content and context of data in the right way => (standardized) metadata Design the metadata in the right structure => concept map/RDF-triples/ontology model Find/use the right terms for addressing the properties of data/metadata => controlled vocabulary Open/adopt the ontology for the chance of data and metadata interoperability => merging/alignment of domain-centered ontologies

16 Visualization of Semantic Relations Tool for modeling and representation of concepts/ontolgies –Detect entities and features –Find relations between entities –Estimate properties of relations Support for interactive retrieval applications –User guidance => navigation and exploration –Interactive presentation of content and context related features and relations Tool for representation of retrieval/reasoning results (knowledge) –Presentation of highly complex correlations –Reduction of information overload –Supply of visual links to related extended information

17 DIF Metadata Classes Data Product Type = „Parent DIF Document“, Version 9.x => FGDC/OGC/ISO compliant (incomplete) Instrument (Sensor) = Instrument DIF => OGC SWE Platform (Source) = Platform DIF => OGC SWE Project (Campaign, Mission) = Project DIF Data Center = Data Center DIF Institution* *in addition to GCMD

18 c ISDC Ontology Class Model Project Platform Instrument Science Domain Product Type Controlled Vocabulary* Free Vocabulary *http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.htmlhttp://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html Institution

19 ISDC Concept Map Metadata Class Ontology *Concept Map

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21 eyePlorer Concept Central conceptSearch term(s) AssociateseyeSpots Associate RankingDiameter of eyeSpots RelationsLines between eyeSpots Categories (Domain)Coloured circle segments Facts (from CMS)Text, Pictures, … SourcesRepository Selection Primary results Secondary results

22 eyePlorer Architecture for Primary Results Picture taken from VIONTO presentation

23 eyePlorer Architecture for Secundary Results (Facts) Picture taken from VIONTO presentation

24 ISDC/eyePlorer Categories Relationships

25 ISDC/eyePlorer[Wiki] Definition Relationships

26 ISDC/eyePlorer[Wiki] Keywords and Relations Relationships

27 ISDC eyePlorer mock-up: Climate

28 Conclusions and Further Tasks Visualization of ontologies is a suitable approach for knowledge representation and management We have a preliminary ISDC ontology model There are detailed ideas/use cases for semantic- based ISDC retrieval application similar to eyePlorer Finishing the ISDC ontology modelling process Finding/filling the semantic gaps, both features/ properties and appropriate values Ontology alignment/merching (very difficult cognitive task), e.g. DC, FOAF, SWEET, … Transforming XML metadata files and rules into OWL and SWRL files according to the ontology model

29 CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 Challenges (from WGISS 24) Sustainable funding of human, technology and technical resources for operational data and information services Developing/Using of a philosophy for sustainable data and information management at the GFZ Providing a high available (long-term) archive and services for data, information and knowledge Education campaign for scientists related to ESSI 1 ESSI 1 must become important research domain within German geoscience work, like in many EU countries, Japan and U.S. 1 Earth and Space Science Informatics

30 Einsteinturm (1921) Thank you, Questions?

31 CEOS Working Group on Information Systems and Services, WGISS-24, Oberpfaffenhofen, Oct , 2007

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33 Semantic-based Use Cases for GGP - Fuzzy Logic is Focus of Use Cases- Show all SG stations which are in operation and delivering calibrated gravity data and additional trustful environmental data in a certain time and space frame Give all earthquake SG data for stations which also have collocated or nearby located permanent GPS observations Show all geoscientific projects which use GGP data and information for the validation of global gravity field models as well as other global geophysical models Connect GGP gravity data with relevant and free available Web information (Web pages, literature, catalogs …) Network and visualize user generated context (tagging, blogs, mashups, social navigation data) with GGP data

34 Usage and Benefit of Semantic Relations Integration of different domain-related data and information to answer domain-specific questions Re-usage and combination of (tailored) domain-specific data and information for inter-domain complex questions Considering and benefit from different cultures and workflows of research approaches Connection of data and related science publications Combination of knowledge of data providers (concept and controlled vocabularies) and data users (folksonomies) Bridge from hardcore science results to open societal knowledge

35 CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 ISDC and GFZ ISDC is even smaller group now, only 2 persons with support from System and DB administrator New head of the Geodesy and Remote Sensing department (coming from university) New director of the GFZ (coming from a technical university) –Interested in more transparency –Common data policy within the GFZ –New mechanism for funding of IT infrastructure –Improvement of long-term archive facilities – … but new requirements are coming from everybody

36 MicroGEM (Phase A) Initial scientific satellite based use of Galileo for Earth observation POD:GNSS Topside Ionosphere Tomograhy Occultation Atmosphere/Ionosphere Reflectometry Ocean/Ice with Galileo with GPS POD: VLBI POD: SLR Combination with ground GNSS

37 CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010 Projects related to WGISS remote –CHAMP (multi-domain mission) –GRACE (multi-domain mission) –GPS-PDR (geodesy) –GASP (GPS) (atmosphere/ionosphere) –TerraSAR-X (multi-domain mission) –GGSP (Galileo?) in-situ –GGP (gravity data)


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