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GFZ Representative Report

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Presentation on theme: "GFZ Representative Report"— Presentation transcript:

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

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) Combination Gravity Field Model EIGEN-CG01C (CHAMP-GRACE-TERR.) Double difference geometry of GPS limb sounding with CHAMP Magnitude of non-dipolar field CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

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 GRACE Gravity Field Model Earth mass distributions CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

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 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. CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

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 TanDEM-X and TerraSAR-X in formation flight Source: ESA This elevation model shows different accuracies: 1 kilometre, 90 metres, 30 metres and 12 metres (TanDEM-X). CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

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 Swarm constellation of three satellites The Earth's magnetic field is mainly produced by a self-sustaining dynamo in the fluid outer-core Dynamics of the Earth generating the Gravity and Magnetic Field CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

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 Example for research domain and dealing with data and information

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

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

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 5.000 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
Workflows & vocabularies Semantic relations Science domain related concepts Technical driven concepts & metadata Culture of scientific work producing Research object exponential growing volume of data and information Complex Systems 1 2 Focus is Informatics 1http://www.emc.com/collateral/analyst-reports/diverse-exploding-digital-universe.pdf 2http://www.geosc.psu.edu/~dbice/DaveSTELLA/climate/climate%20system.png

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

19 ISDC Concept Map Metadata Class Ontology

20

21 eyePlorer Concept Primary results Secondary results
Central concept Search term(s) Associates eyeSpots Associate Ranking Diameter of eyeSpots Relations Lines between eyeSpots Categories (Domain) Coloured circle segments Facts (from CMS) Text, Pictures, … Sources Repository Selection 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 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 ESSI1 ESSI1 must become important research domain within German geoscience work, like in many EU countries, Japan and U.S. 1 Earth and Space Science Informatics CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

30 Einsteinturm (1921) Thank you, Questions?

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

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

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 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 CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010

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

37 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) CEOS Working Group on Information Systems and Services, WGISS-29, Bonn, May , 2010


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